EP 0990196 A1 20000405 - PROJECTION CLOCK
Title (en)
PROJECTION CLOCK
Title (de)
PROJEKTIONSUHR
Title (fr)
HORLOGE A DISPOSITIF DE PROJECTION
Publication
Application
Priority
EP 9703182 W 19970618
Abstract (en)
[origin: WO9858298A1] Apparatus for projection of a liquid crystal display (5) of a clock (1) to a smooth surface, where the clock (1) comprises a casing (9) and a projection device (2) which is moveable relative to the casing (9) and provides a light source (4), a liquid crystal display (5) and a spherical lens (3), characterised in that the projection device (2) is based on the transmitted light principle, where the light source (4), the liquid crystal display (5) and a focusable, spherical lens (3) are sequentially arranged along the light beam permitting the projection of the liquid crystal display (5) into a real image.
IPC 1-7
IPC 8 full level
G04B 19/34 (2006.01); G04G 9/00 (2006.01); G04G 13/02 (2006.01)
CPC (source: EP)
G04B 19/34 (2013.01); G04G 9/00 (2013.01)
Citation (search report)
See references of WO 9858298A1
Citation (third parties)
Third party :
- DE 840970 C 19520609 - SCHMIDT OTTO DIPL-ING
- JP H03175397 A 19910730 - TOMOE KOUKOKUSHIYA KK
- US 2694338 A 19541116 - ISAAC MOULTRY, et al
- US 2290811 A 19420721 - NASSOIT HARRY B
- PATENT ABSTRACTS OF JAPAN vol. 005, no. 046 (P - 054) 27 March 1981 (1981-03-27)
- KATALOG DER CONRAD ELECTRONIC GMBH VON 1994, pages 183, XP002942361
- TEST: "Physik", 1982, TEST, MUENCHEN, article OREAR, J.: "Vorwort: zur deutschsprachigen Ausgabe", pages: 519, XP002942362
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9858298 A1 19981223; DE 69734836 D1 20060112; DE 69734836 T2 20060907; EP 0990196 A1 20000405; EP 0990196 B1 20051207; HK 1024063 A1 20000929; JP 2002505746 A 20020219
DOCDB simple family (application)
EP 9703182 W 19970618; DE 69734836 T 19970618; EP 97929214 A 19970618; HK 00103208 A 20000530; JP 50361999 A 19970618