EP 2153286 A2 20100217 - DEVICE FOR PRODUCING A HIGH-RESOLUTION REFLECTION HOLOGRAM
Title (en)
DEVICE FOR PRODUCING A HIGH-RESOLUTION REFLECTION HOLOGRAM
Title (de)
VORRICHTUNG ZUM ERZEUGEN EINES REFLEKTIONSHOLOGRAMMS HOHER AUFLÖSUNG
Title (fr)
DISPOSITIF POUR LA PRODUCTION D'UN HOLOGRAMME À HAUTE DÉFINITION PAR RÉFLEXION
Publication
Application
Priority
- DE 2008000780 W 20080513
- DE 102007022109 A 20070511
Abstract (en)
[origin: WO2008138309A2] The invention relates to a device (1) for producing a reflection hologram (RH) by means of a master (3) which is formed by a substrate (4) on which a saw-toothed shaped structure (5) is formed by moulding, mechanical or lithographical methods. Said structure (5) has a reflective finish, is reflective or is metallised and is subsequently filled with a transparent layer (6) or a wavelength-selective layer (6), such that a desired surface is produced on the structure (5). The light of a laser light source (7) is expanded by means of an optical device, for example a lens (8) thus enabling a beam (9) having a predetermined beam width (R) to be obtained. The beam (9) radiates the master (3) and is reflected by the structure (5) at an angle a in relation to the incident beam (9). Above the smooth surface arranged over the structure (5) a photopolymer-film (10), containing a photo-sensitive layer (11) that is disposed at a distance (d) in relation to the structure (5), is arranged and the reflection hologram (RH) is produced in said photo-sensitive layer. When said assembly is illuminated by beams (9) of the laser light source (7), the incident beams (9) interfere with the reflected beams and a reflection hologram that has the function of the structure (5) of the master (3) is produced in the photo-sensitive layer (11). In this case of a saw-toothed shaped structure (5), a so-called holographic mirror that evidently has the property according to which a vertical incident light is deflected at an angle, is thus created in the copy.
IPC 8 full level
CPC (source: EP US)
G03H 1/04 (2013.01 - EP US); G03H 1/30 (2013.01 - EP US); G03H 2001/0417 (2013.01 - EP US); G03H 2001/0482 (2013.01 - EP US); G03H 2001/0497 (2013.01 - EP US); G03H 2223/24 (2013.01 - EP US); G03H 2260/12 (2013.01 - EP US)
Citation (search report)
See references of WO 2008138309A2
Citation (examination)
EP 1004946 A1 20000531 - DAINIPPON PRINTING CO LTD [JP]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DE 102007022109 A1 20081113; CN 101809510 A 20100818; CN 101809510 B 20130410; DE 112008001918 A5 20100422; EP 2153286 A2 20100217; US 2011069287 A1 20110324; US 8405893 B2 20130326; WO 2008138309 A2 20081120; WO 2008138309 A3 20090122
DOCDB simple family (application)
DE 102007022109 A 20070511; CN 200880024721 A 20080513; DE 112008001918 T 20080513; DE 2008000780 W 20080513; EP 08758038 A 20080513; US 59962008 A 20080513