(19) |
 |
|
(11) |
EP 2 727 741 B1 |
(12) |
EUROPEAN PATENT SPECIFICATION |
(45) |
Mention of the grant of the patent: |
|
28.03.2018 Bulletin 2018/13 |
(22) |
Date of filing: 22.06.2012 |
|
(51) |
International Patent Classification (IPC):
|
(86) |
International application number: |
|
PCT/RU2012/000492 |
(87) |
International publication number: |
|
WO 2013/002680 (03.01.2013 Gazette 2013/01) |
|
(54) |
VALUABLE DOCUMENT WITH AN OPTICALLY VARIABLE STRUCTURE (VARIANTS)
WERTDOKUMENT MIT EINER OPTISCH VARIABLEN STRUKTUR (VARIANTEN)
DOCUMENT PRÉCIEUX À STRUCTURE OPTIQUEMENT VARIABLE (ET VARIANTES)
|
(84) |
Designated Contracting States: |
|
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
(30) |
Priority: |
30.06.2011 RU 2011126649
|
(43) |
Date of publication of application: |
|
07.05.2014 Bulletin 2014/19 |
(73) |
Proprietor: Joint Stock Company "Goznak" |
|
St. Petersburg 197046 (RU) |
|
(72) |
Inventors: |
|
- TRACHUK, Arkadiy Vladimirovich
St. Petersburg 199004 (RU)
- KURYATNIKOV, Andrey Borisovich
Moscow 129128 (RU)
- PISAREV, Alexandr Georgievich
Moscow 115551 (RU)
- PAVLOV, Igor Vasilievich
Moscow 115193 (RU)
- MOCHALOV, Aleksandr Igorievich
Moscow 115162 (RU)
- SALUNIN, Alexey Vitalevich
Moscow 117535 (RU)
- RYTIKOVA, Anna Menashevna
Moscow 117403 (RU)
- SHAPINOV, Vladimir Ivanovich
Moskovskaya obl. 141014 (RU)
- RYBIN, Konstantin Gennadievich
Perm 614036 (RU)
- BOLOTOV, Dmitry Petrovich
Perm 614036 (RU)
- FEDOROVA, Elena Mikhailovna
Moscow, 115093 (RU)
- BARANOVA, Galina Sergeevna
Moscow 115191 (RU)
|
(74) |
Representative: Awapatent AB |
|
P.O. Box 45086 104 30 Stockholm 104 30 Stockholm (SE) |
(56) |
References cited: :
WO-A2-2004/113954 CA-A1- 2 421 101 RU-C2- 2 235 021
|
WO-A2-2009/013000 RU-C1- 2 304 517 US-A- 4 025 673
|
|
|
|
|
|
|
|
|
Note: Within nine months from the publication of the mention of the grant of the European
patent, any person may give notice to the European Patent Office of opposition to
the European patent
granted. Notice of opposition shall be filed in a written reasoned statement. It shall
not be deemed to
have been filed until the opposition fee has been paid. (Art. 99(1) European Patent
Convention).
|
FIELD OF THE INVENTION
[0001] The invention relates to a counterfeit- protected valuable document such as an information
medium with an optically variable structure that attests to the authenticity of the
medium, and is applicable in the production of banknotes and securities. The medium
can also refer to cards which are used for person identification or for committing
transactions or services.
[0002] Optically variable structure is used as a feature that can be checked both without
technical aids and using simple available means, if necessary, along with other features
to verify the authenticity of a valuable document.
BACKGROUND ART
[0003] A conventional banknote (
RU 2161092 C2, B32B 29/02, 27.12.2000) comprises a printed pattern formed by parallel lines and
an additional embossed three-dimensional linear structure. Due to a certain mutual
arrangement of the printed and three-dimensional structures the printed lines are
visible when the banknote is viewed perpendicular to the surface and not visible when
the document is viewed at an acute angle.
[0004] Another information medium (
CA 1019012 A, B32B 29/02, 11.10.1997) comprises an optically variable structure formed by a printed
raster with straight equispaced elements and a three-dimensional raster with straight
equispaced elements, the three-dimensional raster being positioned relative to the
printed raster such that when the information medium is viewed perpendicularly to
its surface all printed information is visible, while at an acute angle of view of
the surface only that part which is not occluded by the three-dimensional raster can
be seen.
[0005] RU 2235021 C2, 27.08.2004, teaches an information medium comprising a printed raster and a three-dimensional
raster arranged so that to create moir in the form of smoothly blending colour fringes.
[0006] RU 2249638 C1 discloses a method of manufacturing securities using a metallographic plate with
asymmetrical line profile. However, the method is aimed at producing engraving lines
that are coloured unevenly across the direction thereof. The method is not directed
at embossing followed by formation of differently coloured moir fringes.
[0007] Patent application
RU 2010132328, belonging to the present applicant, discloses an information medium comprising a
printed raster and a three-dimensional raster, which are arranged so that to create
a moir pattern in the form of smoothly blending coloured fringes, and the three-dimensional
raster may contain areas made by bleached ink, thus when the angle of view of the
valuable document changes the moir fringes seem to be moving.
[0008] CA 2 421 101 A1, discloses a data carrier with an optically variable structure comprising an embossed
structure with symmetrical profile of lines and a coating that contrasts with the
surface of the data support. The embossed structure with the coating are combined
in such a way that when the structure is viewed in a vertical position, at least parts
of the coating are completely visible while when the structure is viewed at an angle,
said parts are concealed, so that a tilting effect is produced when the structure
is viewed alternately in the vertical position and at an angle.
SUMMARY OF THE INVENTION
[0009] The object of the invention is to improve the security properties of an optically
variable feature which can be observed when the angle of inclination and/or the direction
of viewing of a valuable document is changed, as a result of using at least partially
asymmetric profile of a three-dimensional raster which causes disappearance and/or
change of the colour gamut of the image of an area of the valuable document observed
at the same angle but rotated 180 degrees.
[0010] The object of the invention is to improve an optically variable security feature
as a result of the effect of changing the optical density or colour gamut of an area
of a valuable document made with the use of a three-dimensional raster with at least
partially asymmetrical profile of the line cross section, observed when the viewing
direction of the valuable document is changed by 180 degrees without any change in
the angle of inclination, thereby facilitating the check of the document authenticity
by an untrained user.
[0011] The effect of changing the colour gamut comprises changing the colour of moir fringes
or single-colour areas of the image when the viewing direction of the valuable document
changes, the colour being changed under the CMY to RGB conversion model.
[0012] "CMY to RGB conversion" as used here refers to the effect of changing the colour
gamut where pure colours (CMY) are replaced with mixed colours (RGB), that is cyan,
magenta yellow are changed to red (as a mix of magenta and yellow), blue (as a mix
of magenta and cyan), green (as a mix of blue and yellow).
[0013] The invention can be implemented in four embodiments.
[0014] The object of the invention is accomplished as described below.
[0015] According to a first embodiment, a valuable document with an optically variable structure
that attests to the authenticity of the document comprises a coating in the form of
a printed raster that is made up of at least one colour which is different from the
colour of the main document, and a three-dimensional raster arranged relative to the
coating so that the three-dimensional raster is at least partially disposed on the
coating, is oriented substantially parallel to lines of the printed raster and together
with the coating forms a latent image which is not discernible when the document is
viewed at right angle to the surface; wherein at least a portion of lines of the three-dimensional
raster has an asymmetric cross-section profile with an aspect ratio of not less than
1:1.25, so that when the viewing angle changes the latent image becomes visible in
the form of coloured elements or a single-colour region, and when the viewing direction
changes by 180 degrees without any change in the viewing angle the effect of changing
the optical density or the colour gamut of at least a part of the latent image appears.
[0016] Additionally, a first embodiment of the invention can be characterized in that:
- lines of the printed and three-dimensional rasters can have a constant and/or variable
width, and a constant and/or variable spacing between adjacent lines;
- lines of the printed and three-dimensional rasters can have various configurations
(straight, curved, including concentric), and lines of the printed raster can further
exhibit different absorption of optical radiation in the IR spectrum;
- lines of the three-dimensional raster have a constant and/or variable depth and/or
different asymmetrical cross-section line profile.
- parameters of the printed and three-dimensional rasters further form different moire
structures and/or visual effects, including latent and/or colour variable;
- lines of the printed raster can further have different luminescence colour under UV
and/or IR radiation;
- lines of the printed raster can further exhibit different absorption of optical radiation
in the IR spectrum.
[0017] According to a second embodiment, a valuable document with an optically variable
structure that attests to the authenticity of the document comprises a coating in
the form of a printed raster, and a three-dimensional raster arranged relative to
the coating so that the three-dimensional raster is at least partially disposed on
the coating, wherein at least a portion of lines of the three-dimensional raster has
an asymmetric cross-section profile, and the width of lines and the spacing between
lines of the printed and three-dimensional rasters and mutual orientation of the rasters
are selected so that they form a latent image, and when the valuable document is viewed
at an angle multi-colour moir fringes are observed and the latent image is not discernible;
at least a portion of lines of the three-dimensional raster has an asymmetric cross-section
profile with an aspect ratio of not less than 1:1.25, so that when the viewing direction
changes by 180 degrees without any change in the viewing angle the latent image becomes
visible against the background of multi-colour moir fringes owing to the change in
the colour gamut of the coloured moir part lying in the area of the three-dimensional
raster with asymmetric cross-section line profile.
[0018] The second embodiment can be further characterized in that:
- lines of the printed and three-dimensional rasters can be differently oriented relative
each other, have a constant and/or a variable width, and a constant and/or variable
spacing between adjacent lines;
- lines of the printed and three-dimensional rasters can have various configurations
(straight, curved, including concentric);
- lines of the three-dimensional raster can have a constant and/or variable depth and/or
different asymmetrical cross-section line profile;
- lines of the three-dimensional raster can be single- or multi-coloured;
- lines of the three-dimensional raster can be coloured throughout the length and/or
on separate areas;
- parameters of the printed and three-dimensional rasters further form different moir
structures and/or visual effects, including latent and/or colour variable;
- the printed raster is formed of lines creating an image which is seen when the document
is viewed at right angle;
- lines of the printed raster can further have different luminescence colour under UV
and/or IR radiation;
- lines of the printed raster can further exhibit different absorption of optical radiation
in the IR spectrum.
[0019] According to a third embodiment, a valuable document with an optically variable structure
that attests to the authenticity of the document comprises a coating in the form of
a printed raster, and a three-dimensional raster made on a transparent material and
arranged relative to the coating so that the three-dimensional raster is at least
partially disposed on the coating, the width of lines and the spacing between lines
of the printed and three-dimensional rasters and mutual orientation of the rasters
are selected such that coloured moire fringes are observed when the viewing angle
changes; at least a portion of lines of the three-dimensional raster has an asymmetric
cross-section profile with an aspect ratio of not less than 1:1.25 forming a latent
image, so that when the viewing direction changes by 180 degrees without any change
in the viewing angle the latent image becomes visible against the background of coloured
moire fringes owing to a change in the colour gamut of the portion of moire fringes
lying in the area of lines with asymmetric cross-section profile, and as the viewing
angle is simultaneously changed boundaries of the coloured moire fringes seem to be
moving.
[0020] The third embodiment can be further characterized in that:
- lines of the printed and three-dimensional rasters can be differently oriented relative
each other, have a constant and/or variable width, and a constant and/or variable
spacing between adjacent lines;
- lines of the printed and three-dimensional rasters can have various configurations
(straight, curved, including concentric);
- lines of the three-dimensional raster can have a constant and/or variable depth and/or
different asymmetrical cross-section line profile;
- parameters of the printed and three-dimensional rasters further form different moire
structures and/or visual effects, including latent and/or colour variable;
- lines of the printed raster can further have different luminescence colour under UV
and/or IR radiation;
- lines of the printed raster can further exhibit different absorption of optical radiation
in the IR spectrum.
[0021] According to a fourth embodiment, a valuable document with an optically variable
structure that attests to the authenticity of the document comprises a coating in
the form of a printed raster including lines formed in at least two colours having
indistinguishable (close) tints in the visible spectrum or by colorless inks distinguishable
in the absorption of optical radiation in the IR spectrum and/or in the luminescence
colour under UV and/or IR radiation, and a three-dimensional raster arranged relative
to the coating so that the three-dimensional raster is at least partially disposed
on the coating, the width of lines and the spacing between lines of the printed and
three-dimensional rasters and mutual orientation of the rasters are selected such
that they form a latent image which can be seen only when the valuable document is
viewed under an UV illuminator and/or an IR visualizer; at least a portion of lines
of the three-dimensional raster has an asymmetric cross-section profile with an aspect
ratio of not less than 1:1.25, so that when the viewing angle of the valuable document
changes single- or multi-colour moire fringes are observed, and when the viewing direction
changes by 180 degrees without any change in the viewing angle the latent image becomes
visible against the background of the single- or multi-colour moire fringes owing
to the change in the optical density or the colour gamut of the portion of moire fringes
lying in the area of the three-dimensional raster with asymmetric cross-section profile.
[0022] The fourth embodiment can be further characterized in that:
- lines of the printed and three-dimensional rasters can be differently oriented relative
each other, have a constant and/or a variable width, and a constant and/or variable
spacing between adjacent lines;
- lines of the printed and three-dimensional rasters can have various configurations
(straight, curved, including concentric);
- lines of the three-dimensional raster can have a constant and/or variable depth and/or
different asymmetrical cross-section line profile;
- parameters of the printed and three-dimensional rasters further form different moire
structures and/or visual effects, including latent and/or colour-variable.
[0023] The effect of changing the colour gamut of moire fringes or single-colour areas of
the image under the CMY to RGB model is ensured by the fact that the boundary of two
or more colours of the printed raster is predominantly located on sloping areas of
the three-dimensional raster having an asymmetrical section line profile, and when
the viewing direction of the information medium changes without any change in the
viewing angle the visible sloping surface area of the line of the three-dimensional
raster changes as well. Thus, when the viewing direction of the medium changes, two
or more colours of the printed raster mix to create the impression of changing the
colour gamut of moire fringes or one-colour areas according to the CMY to RGB model.
When individual areas of the three-dimensional raster are painted with translucent
inks or the three-dimensional raster with an asymmetrical line is embossed on a transparent
layer, moire fringes are observed at any viewing angle of the valuable document, and
the impression of apparently moving moire fringes is intensified.
[0024] Various moire patterns and other visual including colour effects can be obtained
depending on parameters of the printed and linear raster, their relationships, as
well as profiles of symmetrical and asymmetrical cross-sections of the three-dimensional
raster.
[0025] Preferably the angle between the direction of lines of the printed and three-dimensional
rasters is from 0 to 45 degrees.
[0026] In an embodiment of a valuable document with small angles between the direction of
the printed and three-dimensional rasters wide moire fringes are observed, this enabling
the creation of a composite image, each part of which, for example, individual symbols
or characters, when the medium is viewed at different angles and different directions,
will completely have its own independent colour, also varying according to the CMY
to RGB model when the viewing direction of the valuable document changes by 180 degrees.
BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The invention is illustrated by the following drawings.
FIG. 1 is a side view of superimposition of a three-dimensional and printed raster
according to a first embodiment of the invention.
FIG 2 is a top view of superimposition of a three-dimensional and printed raster according
to a first embodiment of the invention.
FIG. 3 (3a-3d) shows an image according to a first embodiment when the document is
viewed at different angles of inclination and rotated 180 degrees, where 3a shows
the view of the document at the right angle of observation; 3b shows the view of the
document when the viewing angle of the document changes in the plane perpendicular
to the direction of lines of the three- dimensional raster; 3c shows the view of the
document at the same angle, but rotated 180 degrees; 3d shows the view of the document
when the viewing angle changes in a plane parallel to the direction of lines of the
three-dimensional raster.
FIG. 4 is a side view of superimposition of a three-dimensional and printed raster
according to a second embodiment of the invention.
FIG. 5 is a top view of superimposition of a three-dimensional and printed raster
according to a second embodiment of the invention.
FIG. 6 shows an image according to a second embodiment, when the document is viewed
at an angle of inclination and rotated 180 degrees, where 6a shows the view of the
document at the right angle of view; 6b shows the view of moire fringes when the document
is viewed from one side; 6c shows the view of moire fringes and a latent element when
the document is viewed rotated 180 degrees relative to 6b.
FIG. 7 is a side view of superimposition of a three-dimensional and printed raster
according to a third embodiment of the invention.
FIG. 8 is a top view of superimposition of a three-dimensional and printed raster
according to a third embodiment of the invention.
FIG. 9 shows an image according to a third embodiment when the document is viewed
at different angles of inclination and rotated 180 degrees, where 9a shows the view
of moire fringes when the document is viewed from one side; 9b shows the view of moire
fringes and a latent element when the document is viewed rotated 180 degrees; 9c shows
moving moire fringes when the document is inclined relative to 9a; 9d shows moving
moire fringes when the document is inclined relative to 9b.
FIG. 10 is a top view of superimposition of a three-dimensional and printed raster
according to a fourth embodiment of the invention.
FIG. 11 shows an image according to a fourth embodiment when the document is viewed
under ordinary light, under UV radiation, and as seen in an IR visualizer, where 11a
shows the document under ordinary light at any angle of inclination and at right angle
under UV radiation or in an IR visualizer; 11b shows the view of moire fringes under
UV radiation when the document is viewed at an angle; 11c shows the view of moire
fringes and a latent element under UV radiation and rotated 180 degrees; 11d shows
the view of moire fringes when the document viewed in an IR visualizer at an angle;
11e shows the view of moire fringes and a latent element when the document is viewed
in an IR visualizer rotated 180 degrees.
BEST EMBODIMENT OF THE INVENTION
[0028] The invention will be further illustrated by following examples.
Example 1 (Figs. 1, 2 and 3)
[0029] A valuable document, as shown in Fig. 1, is made on a paper base (3) and comprises
a printed raster (1) made by offset printing and a three-dimensional raster (2) with
an asymmetric line profile, which is applied by blind embossing using intaglio printing,
lines of the three-dimensional raster being parallel to the printed raster lines.
The printed raster (1) comprises alternating, equispaced lines of three different
colours - yellow, magenta, and blue, having a constant equal width. The three-dimensional
raster (2) comprises alternating asymmetrical profile lines which form a latent image
as shown in Fig. 2.
[0030] When the document is observed at right angle a uniformly coloured field (3a) can
be seen. As the viewing angle of the document changes in the plane perpendicular to
the direction of lines of the three-dimensional raster (3b) at an angle, latent elements
having colours of the printed raster lines become visible. When the document is rotated
by 180 degrees (3c) latent elements having mixed colours become visible owing to a
change in the image colour gamut (orange, green, purple). When the document is viewed
at an angle in a plane parallel to the direction of lines of the three-dimensional
raster (3d), an additional latent element (4) can be seen.
Example 2 (Figs. 4, 5 and 6)
[0031] A valuable document, as shown in Figs. 4, 5, is made on a paper base (7) and comprises
a printed raster (5) made by three-colour offset printing and a three-dimensional
linear raster (6) made by blind embossing using intaglio printing, lines of the three-dimensional
raster being rotated relative coloured lines of the printed raster at the angle of
15 degrees.
[0032] The printed raster comprises alternating, equispaced lines of three different colours
- yellow, magenta, and blue, having a constant equal width. Line of each colour exhibits
visible luminescence under UV radiation in the wavelength range of 330-370 nm, the
luminescence colour being different for lines of each colour.
[0033] The three-dimensional raster comprises alternating lines of the same thickness, but
the spacing between the lines is twice the width of the lines.
[0034] The three-dimensional raster is made partially with symmetrical profile lines (8),
and partially with asymmetrical profile lines (9) which form a latent image as shown
in Fig. 5
[0035] When the document is observed at right angle a single- colour area (6a) is observed.
As the viewing angle of the document (6b) changes yellow, blue, purple moire fringes
can be seen. When the document is rotated 180 degrees (6c) a latent image formed in
the area of the three-dimensional raster with asymmetrical line profile becomes visible
owing to the change in the moire image colour gamut to orange, green, purple.
[0036] When the document is observed under an UV source with a wavelength range of 330 -
370 nm a pattern of coloured moire fringes is observed as a result of the change in
the luminescence colour. Visual effect of observation of the latent image is similar
to that described above.
Example 3 (Figs. 7, 8 and 9)
[0037] A valuable document, as shown in Fig. 7, is made on a plastic base (13) and comprises
a printed raster (12) produced by three-colour offset printing and a three-dimensional
linear raster (11) applied by blind embossing using intaglio printing on a transparent
upper layer (10) applied over the printed raster, whose lines are rotated from the
coloured lines of the printed raster at the angle of 10 degrees. The printed raster
comprises alternating equispaced lines of three different colours - yellow, magenta,
and blue, having a constant equal width. The three-dimensional raster comprises alternating
lines of the same thickness, but the spacing between the lines is twice the width
of the lines. The three-dimensional raster is formed partially of symmetrical profile
lines (14) and partially of asymmetrical profile lines (15) which form a latent image
as shown in Fig. 8.
[0038] When the document is observed at an angle in a plane perpendicular to the direction
of the three-dimensional raster lines (9a) yellow, blue, purple moire fringes can
be seen. When the document (9c) is inclined relative to the position (9a) the moire
fringes seem to be moving in the transverse direction. When the document is rotated
180 degrees (9b) a latent image formed in the area of three-dimensional raster with
asymmetrical line profile becomes visible as a result of changing the colour gamut
of moire fringe image to orange, green, purple, and when the document (9d) is inclined
the moire fringes also seem to be moving in the transverse direction.
Example 4 (Figs. 10 and 11)
[0039] A valuable document, as shown in Figs. 10 and 11, is made on a paper base (16) and
comprises a printed raster (19) formed by two-colour offset printing, where the colours
are similarly light gray, and a three-dimensional raster (17) applied by a blind embossing
using intaglio printing, lines of the three-dimensional raster being rotated relative
to the printed raster lines at an angle of 17 degrees. The printed raster comprises
alternating equispaced lines formed by two inks of the same gray colour, but having
different UV and IR properties, having a constant equal width, and when viewed in
ordinary light the raster is visually perceived as a single-colour area (11a) The
inks have different luminescence colour when exposed to UV radiation in the wavelength
range of 330-370 nm, and different IR absorption properties in the wavelength range
of 700-1100 nm. The first ink fluoresces red under UV radiation, while the second
ink fluoresces green. The first ink has a broad absorption spectrum in the wavelength
range of 700-1100 nm, while the second ink selectively absorbs in the range of 700-860
nm.
[0040] The three-dimensional raster comprises alternating lines having the same thickness,
but the spacing between the lines is twice the width of the lines.
[0041] A part of the three-dimensional raster is formed with lines rotated 90 degrees (18),
which form a latent image. When the document is viewed at any angle in ordinary light
a single-colour light gray image pixel is observed in the area of the security feature
(11c, 11e).
[0042] When the document is observed at right angle under UV light of 365 nm, a luminous
yellow image element is observed in the region of the security feature. When the document
is observed at an angle (11b) alternating green and red moire stripes are observed
in the field of the security feature. When the document is rotated 180 degrees (11c)
a latent image can be seen as a result of the fact that there are no moire fringes
in the latent element region.
[0043] When the document is viewed in an IR visualizer at right angle a monochromatic gray
area is observed. When the document is observed at an angle in the IR visualizer in
the range of 810 nm (11d) alternating dark Moire fringes are visible. When the document
is rotated 180 degrees (11e) the latent image becomes visible due to the fact that
there are no moire fringes in the latent element.
[0044] When the document is viewed at an angle in the IR visualizer in the range of 940
nm a dark region is visible without moire fringes.
Industrial Applicability
[0045] The invention provides a counterfeit-protected valuable document with an optically
variable image, which makes it possible for an untrained user to carry out a visual
authenticity check both without technical aids and using simple available means.
1. A valuable document with an optically variable structure that attests to the authenticity
of the document, comprising a coating in the form of a printed raster (1), comprising
alternating lines of at least two different colours, wherein at least one colour of
the printed raster line is different from the colour of the document base (3), and
a three-dimensional raster (2), wherein at least a portion of lines of the three-dimensional
raster has an asymmetric cross-section profile with an aspect ratio of not less than
1: 1.25, and the three-dimensional raster is arranged relative to the coating so that
the three-dimensional raster is at least partially disposed on the coating, is oriented
substantially parallel to lines of the printed raster and together with the coating
forms a latent image which is not discernible when the document is viewed at right
angle to the surface a uniformly colored area (3a) is observed; so that
when the viewing angle of the document in the plane perpendicular to the direction
of lines of the three-dimensional raster changes the latent image becomes visible
in the form of coloured elements or a single-colour region in the area of the three-dimensional
raster, and when the viewing direction changes by 180 degrees without any change in
the viewing angle the effect of changing the optical density or the colour gamut of
at least a part of the latent image appears, wherein effect of changing the color
gamut represents changing the colors in CMY color system to RGB color system, when
the viewing angle of the document in the plane parallel to the direction of lines
of three-dimensional raster changes the additional latent element (4) is observed.
2. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 1, wherein lines of the printed and three-dimensional
rasters have a constant and/or variable width, and a constant and/or variable spacing
between adjacent lines and/or lines of the three-dimensional raster have a constant
and/or variable depth and/or different asymmetrical cross-section line profile.
3. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 1, wherein lines of the printed and three-dimensional
rasters can have various configurations including straight, curved and concentric,
and lines of the printed raster can further exhibit different absorption of optical
radiation in the IR spectrum and/or lines of the printed raster can further have different
luminescence colour under UV and/or IR radiation.
4. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 1, wherein parameters of the printed and three-dimensional
rasters further form different visual effects, including latent and/or colour variable.
5. A valuable document with an optically variable structure that attests to the authenticity
of the document, comprising a coating in the form of a printed raster(5),comprising
alternating lines of at least two different colours, wherein at least one colour of
the printed raster line is different from the colour of the document base (7) and
a three-dimensional raster (6) arranged relative to the coating so that the three-dimensional
raster is at least partially disposed on the coating, wherein at least a portion of
lines of the three-dimensional raster (6) has an asymmetric cross-section profile,
and the width of lines and the spacing between lines of the printed and three-dimensional
rasters and the mutual orientation of the rasters are selected so that they form a
latent image, and when the valuable document is viewed at an angle multi-colour moire
fringes are observed and the latent image is not discernible; at least a portion of
lines of the three-dimensional raster has an asymmetric cross-section profile with
an aspect ratio of not less than 1: 1.25, so that
when the viewing direction changes by 180 degrees without any change in the viewing
angle the latent image becomes visible against the background of multi-colour moire
fringes owing to a change in the colour gamut of the coloured moire part lying in
the region of the three-dimensional raster with asymmetric cross-section line profile,
wherein effect of changing the color gamut represents changing the colors in CMY color
system to RGB color system.
6. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 5, wherein lines of the printed and three-dimensional
rasters are differently oriented relative each other, have a constant and/or a variable
width, and a constant and/or variable spacing between adjacent lines and/or lines
of the three-dimensional raster have a constant and/or variable depth and/or different
asymmetrical cross-section line profile.
7. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 5, wherein lines of the printed and three-dimensional
rasters have various configurations, such as straight, curved, including concentric,
and/or lines of the three-dimensional raster are single-or multi-coloured throughout
the length and/or on separate areas.
8. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 5, wherein parameters of the printed and three-dimensional
rasters further form different moire structures and/or visual effects, including latent
and/or colour variable.
9. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 5, wherein the printed raster is formed of lines
creating an image which is seen when the document is viewed at right angle.
10. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 5, wherein lines of the printed raster further
have different luminescence colour under UV and/or IR radiation and/or lines of the
printed raster further exhibit different absorption of optical radiation in the IR
spectrum.
11. A valuable document with an optically variable structure that attests to the authenticity
of the document, comprising a coating in the form of a printed raster(12), comprising
alternating lines of at least two different colours, wherein at least one colour of
the printed raster line is different from the colour of the document base (13), and
a three-dimensional raster (11) made on a transparent material (10) and arranged relative
to the coating so that the three-dimensional raster (11) is at least partially disposed
on the coating, the width of lines and the spacing between lines of the printed and
three-dimensional rasters and the mutual orientation of the rasters are selected such
that coloured moire fringes are observed when the viewing angle changes; at least
a portion of lines of the three-dimensional raster has an asymmetric cross-section
profile with an aspect ratio of not less than 1: 1.25 forming a latent image, so that
when the viewing direction changes by 180 degrees without any change in the viewing
angle the latent image becomes visible against the background of coloured moire fringes
owing to a change in the colour gamut of the portion of moire fringes lying in the
region of lines with asymmetric cross-section profile, and as the viewing angle is
simultaneously changed boundaries of the coloured moire fringes seem to be moving,
wherein effect of changing the color gamut represents changing the colors in CMY color
system to RGB color system.
12. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 11, wherein lines of the printed and three-dimensional
rasters are differently oriented relative each other, have a constant and/or variable
width, and a constant and/or variable spacing between adjacent lines and/or lines
of the three-dimensional raster have a constant and/or variable depth and/or different
asymmetrical cross-section line profile.
13. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 11, wherein lines of the printed and three-dimensional
rasters have various configurations, such as straight, curved, including concentric.
14. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 11, wherein parameters of the printed and three-dimensional
rasters further form different moire structures and/or visual effects, including latent
and/or colour variable.
15. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 11, wherein lines of the printed raster further
have different luminescence colour under UV and/or IR radiation and/or lines of the
printed raster further exhibit different absorption of optical radiation in the IR
spectrum.
16. A valuable document with an optically variable structure that attests to the authenticity
of the document, comprising a coating in the form of a printed raster (19) including
alternating lines formed in at least two colours having indistinguishable tints in
the visible spectrum or by colorless inks distinguishable in the absorption of optical
radiation in the IR spectrum and/or in the luminescence colour under UV and/or IR
radiation, and a three-dimensional raster (17) arranged relative to the coating so
that the three-dimensional raster (17) is at least partially disposed on the coating,
the width of lines and the spacing between lines of the printed and three-dimensional
rasters and the mutual orientation of the rasters are selected such that they form
a latent image which can be seen only when the valuable document is viewed under an
UV illuminator and/or in an IR visualizer; at least a portion of lines of the three-dimensional
raster has an asymmetric cross-section profile with an aspect ratio of not less than
1: 1.25, so that
when the viewing angle of the valuable document changes multi-colour moire fringes
are observed, and when the viewing direction changes by 180 degrees without any change
in the viewing angle the latent image becomes visible against the background of the
single- or multi-colour moire fringes owing to a change in the optical density or
the colour gamut of the portion of moiré fringes lying in the region of the three-dimensional
raster with asymmetric cross-section profile, wherein effect of changing the color
gamut represents changing the colors in CMY color system to RGB color system.
17. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 16, wherein lines of the printed and three-dimensional
rasters are differently oriented relative each other, have a constant and/or a variable
width, and a constant and/or variable spacing between adjacent lines and/or lines
of the three-dimensional raster have a constant and/or variable depth and/or different
asymmetrical cross-section line profile.
18. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 16, wherein lines of the printed and three-dimensional
rasters can have various configurations, such as straight, curved, including concentric.
19. A valuable document with an optically variable structure that attests to the authenticity
of the document according to claim 16, wherein parameters of the printed and three-dimensional
rasters further form different moire structures and/or visual effects, including latent
and/or colour-variable.
1. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments bestätigt, das eine Beschichtung in Form eines gedruckten Rasters (1)
umfasst, welches abwechselnde Linien von mindestens zwei unterschiedlichen Farben
umfasst, wobei sich mindestens eine Farbe der gedruckten Rasterlinie von der Farbe
der Dokumentenbasis (3) unterscheidet, und ein dreidimensionales Raster (2), wobei
mindestens ein Teil der Linien des dreidimensionalen Rasters ein asymmetrisches Querschnittsprofil
mit einem Seitenverhältnis von nicht kleiner als 1:1,25 aufweist und das dreidimensionale
Raster relativ zur Beschichtung derart angeordnet ist, dass das dreidimensionale Raster
mindestens teilweise auf der Beschichtung angeordnet ist, im Wesentlichen parallel
zu Linien des gedruckten Rasters ausgerichtet ist und zusammen mit der Beschichtung
ein latentes Bild bildet, das nicht erkennbar ist, und wenn das Dokument im rechten
Winkel zur Fläche angesehen wird, ein einheitlich gefärbter Bereich (3a) wahrgenommen
wird;
sodass, wenn sich der Blickwinkel des Dokuments in der Ebene, die zur Richtung von
Linien des dreidimensionalen Rasters senkrecht ist, ändert, das latente Bild in der
Form von farbigen Elementen oder einer Einfarbenregion im Bereich des dreidimensionalen
Rasters sichtbar wird, und wenn sich die Blickrichtung um 180 Grad ändert ohne jede
Änderung im Blickwinkel, der Effekt des Änderns der optischen Dichte oder des Farbraums
von mindestens einem Teil des latenten Bildes erscheint, wobei der Effekt des Änderns
des Farbbereichs das Ändern der Farben im CMY-Farbsystem zum RGB-Farbsystem darstellt,
und wenn sich der Blickwinkel des Dokuments in der Ebene parallel zur Richtung von
Linien des dreidimensionalen Rasters ändert, das zusätzliche latente Element (4) wahrgenommen
wird.
2. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 1 bestätigt, wobei Linien der gedruckten und dreidimensionalen
Raster eine konstante und/oder variable Breite und einen konstanten und/oder variablen
Abstand zwischen angrenzenden Linien aufweisen und/oder Linien des dreidimensionalen
Rasters eine konstante und/oder variable Tiefe und/oder ein unterschiedliches asymmetrisches
Querschnittslinienprofil aufweisen.
3. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 1 bestätigt, wobei Linien der gedruckten und dreidimensionalen
Raster verschiedene Konfigurationen aufweisen können, einschließlich gerade, gekrümmt
und konzentrisch, und Linien des gedruckten Rasters ferner eine unterschiedliche Absorption
von optischer Strahlung im IR-Spektrum aufweisen können und/oder Linien des gedruckten
Rasters ferner unter UV- und/oder Infrarotstrahlung eine unterschiedliche Lumineszenzfarbe
aufweisen können.
4. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 1 bestätigt, wobei Parameter der gedruckten und dreidimensionalen
Raster ferner unterschiedliche visuelle Effekte, einschließlich latent und/oder farbvariabel,
bilden.
5. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments bestätigt, das eine Beschichtung in der Form eines gedruckten Rasters
(5), das abwechselnde Linien von mindestens zwei unterschiedlichen Farben umfasst,
wobei sich mindestens eine Farbe der gedruckten Rasterlinie von der Farbe der Dokumentenbasis
(7) unterscheidet, und ein dreidimensionales Raster (6), das relativ zur Beschichtung
angeordnet ist, sodass das dreidimensionale Raster mindestens teilweise auf der Beschichtung
angeordnet ist, wobei mindestens ein Teil der Linien des dreidimensionalen Rasters
(6) ein asymmetrisches Querschnittsprofil aufweist und die Breite der Linien und der
Abstand zwischen Linien der gedruckten und dreidimensionalen Raster und die gegenseitige
Ausrichtung der Raster derart ausgewählt sind, dass sie ein latentes Bild bilden,
und wenn das wertvolle Dokument in einem Winkel angesehen wird, Mehrfarben-Moire-Muster
wahrgenommen werden und das latente Bild nicht erkennbar ist; mindestens ein Teil
der Linien des dreidimensionalen Rasters ein asymmetrisches Querschnittsprofil mit
einem Seitenverhältnis von nicht kleiner als 1:1,25 aufweist, sodass, wenn sich die
Blickrichtung um 180 Grad ändert ohne jede Änderung im Blickwinkel das latente Bild
vor dem Hintergrund von Mehrfarben-Moire-Mustern infolge einer Änderung im Farbraum
des farbigen Moire-Teils, der in der Region des dreidimensionalen Rasters mit asymmetrischem
Querschnittslinienprofil liegt, sichtbar wird, wobei der Effekt des Änderns des Farbbereichs
das Ändern der Farben im CMY-Farbsystem zum RGB-Farbsystem darstellt.
6. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 5 bestätigt, wobei Linien der gedruckten und dreidimensionalen
Raster relativ zueinander unterschiedlich ausgerichtet sind, eine konstante und/oder
eine variable Breite und einen konstanten und/oder variablen Abstand zwischen angrenzenden
Linien aufweisen und/oder Linien des dreidimensionalen Rasters eine konstante und/oder
variable Tiefe und/oder ein unterschiedliches asymmetrisches Querschnittslinienprofil
aufweisen.
7. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 5 bestätigt, wobei Linien der gedruckten und dreidimensionalen
Raster verschiedene Konfigurationen, wie beispielsweise gerade, gekrümmt einschließlich
konzentrisch aufweisen und/oder Linien des dreidimensionalen Rasters über die gesamte
Länge und/oder auf separaten Bereichen ein- oder mehrfarbig sind.
8. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 5 bestätigt, wobei Parameter der gedruckten und dreidimensionalen
Raster ferner unterschiedliche Moire-Strukturen und/oder visuelle Effekte, einschließlich
latent und/oder farbvariabel, bilden.
9. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 5 bestätigt, wobei das gedruckte Raster aus Linien gebildet
ist, die ein Bild erzeugen, das sichtbar ist, wenn das Dokument im rechten Winkel
angesehen wird.
10. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 5 bestätigt, wobei Linien des gedruckten Rasters ferner
unter UV- und/oder Infrarotstrahlung eine unterschiedliche Lumineszenzfarbe aufweisen
und/oder Linien des gedruckten Rasters ferner eine unterschiedliche Absorption von
optischer Strahlung im IR-Spektrum aufweisen.
11. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments bestätigt, das eine Beschichtung in der Form eines gedruckten Rasters
(12) umfasst, das abwechselnde Linien von mindestens zwei unterschiedlichen Farben
umfasst, wobei sich mindestens eine Farbe der gedruckten Rasterlinie von der Farbe
der Dokumentenbasis (13) unterscheidet, und ein dreidimensionaler Raster (11), das
auf einem transparenten Material (10) hergestellt und relativ zur Beschichtung angeordnet
ist, sodass das dreidimensionale Raster (11) mindestens teilweise auf der Beschichtung
angeordnet ist, die Breite von Linien und der Abstand zwischen Linien der gedruckten
und dreidimensionalen Raster und die gegenseitige Ausrichtung der Raster derart ausgewählt
sind, dass farbige Moire-Muster wahrgenommen werden, wenn sich der Blickwinkel ändert;
mindestens ein Teil der Linien des dreidimensionalen Rasters ein asymmetrisches Querschnittsprofil
mit einem Seitenverhältnis von nicht kleiner als 1:1,25 aufweist, das ein latentes
Bild bildet, sodass, wenn sich die Blickrichtung um 180 Grad ändert ohne jede Änderung
im Blickwinkel, das latente Bild vor dem Hintergrund von farbigen Moire-Mustern infolge
einer Änderung im Farbraum des Abschnitts von Moire-Mustern sichtbar wird, die in
der Region von Linien mit asymmetrischem Querschnittsprofil liegen, und während der
Blickwinkel gleichzeitig geändert wird, sich Begrenzungen der farbigen Moire-Muster
zu bewegen scheinen, wobei der Effekt des Änderns des Farbbereichs das Ändern der
Farben im CMY-Farbsystem zum RGB-Farbsystem darstellt.
12. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 11 bestätigt, wobei Linien der gedruckten und dreidimensionalen
Raster relativ zueinander unterschiedlich ausgerichtet sind, eine konstante und/oder
eine variable Breite und einen konstanten und/oder variablen Abstand zwischen angrenzenden
Linien aufweisen und/oder Linien des dreidimensionalen Rasters eine konstante und/oder
variable Tiefe und/oder ein unterschiedliches asymmetrisches Querschnittslinienprofil
aufweisen.
13. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 11 bestätigt, wobei Linien der gedruckten und dreidimensionalen
Raster verschiedene Konfigurationen aufweisen, wie beispielsweise gerade, gekrümmt,
konzentrisch.
14. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 11 bestätigt, wobei Parameter der gedruckten und dreidimensionalen
Raster ferner unterschiedliche Moire-Strukturen und/oder visuelle Effekte, einschließlich
latent und/oder farbvariabel, bilden.
15. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 11 bestätigt, wobei Linien des gedruckten Rasters ferner
unter UV- und/oder Infrarotstrahlung eine unterschiedliche Lumineszenzfarbe aufweisen
und/oder Linien des gedruckten Rasters ferner eine unterschiedliche Absorption von
optischer Strahlung im IR-Spektrum aufweisen.
16. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments bestätigt, das eine Beschichtung in der Form eines gedruckten Rasters
(19) umfasst, das abwechselnde Linien umfasst, die in mindestens zwei Farben mit ununterscheidbaren
Farbtönen im sichtbaren Spektrum oder durch farblose Druckfarben, die in der Absorption
optischer Strahlung im IR-Spektrum und/oder in der Lumineszenzfarbe unter UV- und/oder
Infrarotstrahlung unterscheidbar sind, gebildet sind, und ein dreidimensionales Raster
(17), das relativ zu der Beschichtung angeordnet ist, sodass das dreidimensionale
Raster (17) mindestens teilweise auf der Beschichtung angeordnet ist, die Breite von
Linien und der Abstand zwischen Linien der gedruckten und dreidimensionalen Raster
und die gegenseitige Ausrichtung der Raster derart ausgewählt sind, dass sie ein latentes
Bild bilden, das nur sichtbar ist, wenn das wertvolle Dokument unter einem UV-Illuminator
und/oder in einer IR-Sichtvorrichtung angesehen wird; mindestens ein Teil der Linien
des dreidimensionalen Rasters ein asymmetrisches Querschnittsprofil mit einem Seitenverhältnis
von nicht kleiner als 1:1,25 aufweist, sodass, wenn sich der Blickwinkel des wertvollen
Dokuments ändert, Mehrfarben-Moire-Muster wahrgenommen werden, und wenn sich die Blickrichtung
um 180 Grad ändert ohne jede Änderung im Blickwinkel das latente Bild vor dem Hintergrund
der Ein- oder Mehrfarben-Moire-Muster infolge einer Änderung in der optischen Dichte
oder des Farbraums des Abschnitts von Moire-Mustern sichtbar wird, die in der Region
des dreidimensionalen Rasters mit dem asymmetrischen Querschnittsprofil liegen, wobei
der Effekt des Änderns des Farbbereichs das Ändern der Farben im CMY-Farbsystem zum
RGB-Farbsystem darstellt.
17. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 16 bestätigt, wobei Linien der gedruckten und dreidimensionalen
Raster relativ zueinander unterschiedlich ausgerichtet sind, eine konstante und/oder
eine variable Breite und einen konstanten und/oder variablen Abstand zwischen angrenzenden
Linien aufweisen und/oder Linien des dreidimensionalen Rasters eine konstante und/oder
variable Tiefe und/oder ein unterschiedliches asymmetrisches Querschnittslinienprofil
aufweisen.
18. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 16 bestätigt, wobei Linien der gedruckten und dreidimensionalen
Raster verschiedene Konfigurationen, wie beispielsweise gerade, gekrümmt, konzentrisch,
aufweisen können.
19. Wertvolles Dokument mit einer optisch variablen Struktur, welche die Authentizität
des Dokuments nach Anspruch 16 bestätigt, wobei Parameter der gedruckten und dreidimensionalen
Raster ferner unterschiedliche Moire-Strukturen und/oder visuelle Effekte, einschließlich
latent und/oder farbvariabel, bilden.
1. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document, comprenant un revêtement sous la forme d'une trame imprimée (1), comprenant
des lignes alternées d'au moins deux couleurs différentes, dans lequel au moins une
couleur de la ligne de trame imprimée est différente de la couleur de la base du document
(3), et une trame tridimensionnelle (2), dans lequel au moins une partie des lignes
de la trame tridimensionnelle présente un profil de section transversale asymétrique
avec un rapport de forme d'au moins 1:1,25, et la trame tridimensionnelle est agencée
de telle manière par rapport au revêtement que la trame tridimensionnelle est au moins
partiellement disposée sur le revêtement, est orientée substantiellement parallèlement
aux lignes de la trame imprimée et forme une image latente non discernable ensemble
avec le revêtement, lorsque le document est visualisé selon un angle droit par rapport
à la surface, une zone uniformément colorée (3a) est observée ; de telle façon que
lorsque l'angle de visualisation du document dans le plan perpendiculaire à la direction
de lignes de la trame tridimensionnelle est modifié, l'image latente devient visible
sous la forme d'élément colorés ou d'une région d'une seule couleur dans la zone de
la trame tridimensionnelle, et lorsque la direction de visualisation est modifiée
de 180 degrés sans aucune modification dans l'angle de visualisation, l'effet de la
modification de la densité optique ou de la gamme de couleurs représente la conversion
de couleurs du système de couleurs CMY au système de couleurs RGB, lorsque l'angle
de visualisation du document dans le plan parallèle à la direction de lignes de la
trame tridimensionnelle est modifié, l'élément latent supplémentaire (4) est observé.
2. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 1, dans lequel des lignes de la trame imprimée
et de la trame tridimensionnelle présentent une largeur constante et/ou variable,
et un espacement constant et/ou variable entre des lignes adjacentes, et/ou dans lequel
des lignes de la trame tridimensionnelle présentent une profondeur constante et/ou
variable et/ou un profil de ligne à section transversale asymétrique différente.
3. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 1, dans lequel des lignes de la trame imprimée
et de la trame tridimensionnelle peuvent présenter différentes configurations, y compris
des lignes droites, courbes et concentriques, et des lignes de la trame imprimée peuvent
en outre présenter une absorption différente de rayonnement optique dans le spectre
infrarouge, et/ou des lignes de la trame imprimée peuvent présenter différentes couleurs
de luminescence sous un rayonnement ultraviolet et/ou infrarouge.
4. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 1, dans lequel des paramètres de la trame imprimée
et de la trame tridimensionnelle forment en outre différents effets visuels, y compris
une variable latente et/ou de couleur.
5. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document, comprenant un revêtement sous la forme d'une trame imprimée (5), comprenant
des lignes alternées d'au moins deux couleurs différentes, dans lequel au moins une
couleur de la ligne de trame imprimée est différente de la couleur de la base du document
(7), et une trame tridimensionnelle (6) agencée de telle façon par rapport au revêtement
que la trame tridimensionnelle est au moins partiellement disposée sur le revêtement,
dans lequel au moins une partie des lignes de la trame tridimensionnelle (6) présente
un profil de section transversale asymétrique, et la largeur des lignes et l'espacement
entre des lignes de la trame imprimée et de la trame tridimensionnelle et l'orientation
mutuelle des trames sont sélectionnés de manière à former une image latente, et lorsque
le document de valeur est visualisé selon un angle, des franges de moiré multicolores
sont observées et l'image latente n'est pas discernable ; au moins une parties des
lignes de la trame tridimensionnelle présente un profil de section transversale asymétrique
avec un rapport de forme d'au moins 1:1,25, de telle façon que lorsque la direction
de visualisation est modifiée de 180 degrés sans aucune modification dans l'angle
de visualisation, l'image latente devient visible contre l'arrière-plan des franges
de moiré multicolores en raison d'une modification dans la gamme de couleurs de la
partie de moiré coloré située dans la région de la trame tridimensionnelle avec un
profil de ligne à section transversale asymétrique, où l'effet de la modification
de la gamme de couleurs représente la conversion des couleurs du système CMY au système
de couleurs RGB.
6. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 5, dans lequel des lignes de la trame imprimée
et de la trame tridimensionnelle sont orientées différemment les unes par rapport
aux autres, présentent une largeur constante et/ou variable, et un espacement constant
et/ou variable entre des lignes adjacentes et/ou dans lequel des lignes de la trame
tridimensionnelle présentent une profondeur constante et/ou variable et/ou un profil
de ligne à section transversale asymétrique différente.
7. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 5, dans lequel des lignes de la trame imprimée
et de la trame tridimensionnelle présentent différentes configurations, telles que
des lignes droites, courbes, y compris concentriques, et/ou dans lequel des lignes
de la trame tridimensionnelle sont d'une seule couleur ou multicolores sur la longueur
et/ou des zones séparées.
8. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 5, dans lequel des paramètres de la trame imprimée
et de la trame tridimensionnelle forment en outre différentes structures de moiré
et/ou différents effets visuels, y compris une variable latente et/ou de couleur.
9. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 5, dans lequel la trame imprimée est constituée
de lignes créant une image visible lorsque le document est visualisé selon un angle
droit.
10. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 5, dans lequel des lignes de la trame imprimée
présentent en outre une couleur de luminescence différente sous un rayonnement ultraviolet
et/ou infrarouge, et/ou dans lequel des lignes de la trame imprimée présentent en
outre une absorption de rayonnement optique différente dans le spectre infrarouge.
11. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document, comprenant un revêtement sous la forme d'une trame imprimée (12), comprenant
des lignes alternées d'au moins deux couleurs différentes, dans lequel au moins une
couleur de la ligne de trame imprimée est différente de la couleur de la base du document
(13), et une trame tridimensionnelle (11) réalisée sur un matériau transparent (10)
et agencée de telle façon par rapport au revêtement que la trame tridimensionnelle
(11) est au moins partiellement disposée sur le revêtement, la largeur des lignes
et l'espacement entre les lignes de la trame imprimée et de la trame tridimensionnelle
et l'orientation mutuelle des trames étant sélectionnés de telle façon que des franges
de moiré coloré sont observées lorsque l'angle de visualisation est modifié ; au moins
une partie des lignes de la trame tridimensionnelle présentant un profil de section
transversale asymétrique avec un rapport de forme d'au moins 1:1,25 formant une image
latente, de sorte que lorsque la direction de visualisation est modifiée de 180 degrés
sans aucune modification dans l'angle de visualisation, l'image latente devient visible
contre l'arrière-plan des franges de moiré coloré, en raison d'une modification dans
la gamme de couleurs de la partie des franges de moiré située dans la région des lignes
avec un profil de section transversale asymétrique, et tandis que l'angle de visualisation
est modifié simultanément, des frontières des franges de moiré multicolores semblent
bouger, l'effet de la modification de la gamme de couleurs représentant la conversion
des couleurs du système de couleurs CMY au système de couleurs RGB.
12. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 11, dans lequel des lignes de la trame imprimée
et de la trame tridimensionnelle sont orientées différemment les unes par rapport
aux autres, présentent une largeur constante et/ou variable, et un espacement constant
et/ou variable entre des lignes adjacentes et/ou dans lequel des lignes de la trame
tridimensionnelle présentent une profondeur constante et/ou variable et/ou un profil
de ligne à section transversale asymétrique différente.
13. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 11, dans lequel des lignes de la trame imprimée
et de la trame tridimensionnelle présentent différentes configurations, telles que
des lignes droites, courbes, y compris concentriques.
14. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 11, dans lequel des paramètres de la trame imprimée
et de la trame tridimensionnelle forment en outre différentes structures de moiré
et/ou différents effets visuels, y compris une variable latente et/ou de couleur.
15. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 11, dans lequel des lignes de la trame imprimée
présentent en outre une couleur de luminescence différente sous un rayonnement ultraviolet
et/ou infrarouge, et/ou dans lequel des lignes de la trame imprimée présentent en
outre une absorption de rayonnement optique différente dans le spectre infrarouge.
16. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document, comprenant un revêtement sous la forme d'une trame imprimée (19) comprenant
des lignes alternées formées dans au moins deux couleurs présentant des encres non
distinguables dans le spectre visible ou par des encres incolores distinguables dans
l'absorption d'un rayonnement optique dans la spectre infrarouge et/ou dans la couleur
de luminescence sous un rayonnement ultraviolet et/ou infrarouge, et une trame tridimensionnelle
(17) agencée de telle façon par rapport au revêtement que la trame tridimensionnelle
(17) est au moins partiellement disposée sur le revêtement, la largeur des lignes
et l'espacement entre des lignes de la trame imprimée et de la trame tridimensionnelle
et l'orientation mutuelle des trames étant sélectionnés de manière à ce que celles-ci
forment une image latente susceptible d'être vue uniquement lorsque le document de
valeur est visualisé sous un éclairage ultraviolet et/ou un outil de visualisation
infrarouge ; au moins une partie des lignes de la trame tridimensionnelle présentant
un profil de section transversale avec un rapport de forme d'au moins 1:1,25, de sorte
que lorsque l'angle de visualisation du document de valeur est modifié, des franges
de moiré multicolores sont observées, et lorsque la direction de visualisation est
modifiée de 180 degrés sans aucune modification dans l'angle de visualisation, l'image
latente devient visible contre l'arrière-plan des franges de moiré d'une seule couleur
ou multicolores, en raison d'une modification dans la densité optique ou la gamme
de couleurs de la partie des franges de moiré située dans la région de la trame tridimensionnelle
avec un profil de section transversale asymétrique, où l'effet de la modification
de la gamme de couleurs représente la conversion des couleurs du système de couleurs
CMY au système de couleurs RGB.
17. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 16, dans lequel des lignes de la trame imprimée
et de la trame tridimensionnelle sont orientées différemment les unes par rapport
aux autres, présentent une largeur constante et/ou variable, et un espacement constant
et/ou variable entre des lignes adjacentes et/ou dans lequel des lignes de la trame
tridimensionnelle présentent une profondeur constante et/ou variable et/ou un profil
de ligne à section transversale asymétrique différente.
18. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 16, dans lequel des lignes de la trame imprimée
et de la trame tridimensionnelle présentent différentes configurations, telles que
des lignes droites, courbes, y compris concentriques.
19. Document de valeur avec une structure optiquement variable certifiant l'authenticité
du document selon la revendication 16, dans lequel des paramètres de la trame imprimée
et de la trame tridimensionnelle forment en outre différentes structures de moiré
et/ou différents effets visuels, y compris une variable latente et/ou de couleur.
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only.
It does not form part of the European patent document. Even though great care has
been taken in compiling the references, errors or omissions cannot be excluded and
the EPO disclaims all liability in this regard.
Patent documents cited in the description