EP 0733229 A1 19960925 - PROJECTION SCREEN
Title (en)
PROJECTION SCREEN
Title (de)
PROJEKTIONSSCHIRM
Title (fr)
ECRAN DE PROJECTION
Publication
Application
Priority
- SE 9400253 W 19940322
- SE 9300958 A 19930323
Abstract (en)
[origin: WO9422048A1] An illuminating arrangement for overhead and video projection which with the aid of a combination of refractive (8) and diffractive (9) optical elements makes possible color-corrected focussing of illuminating light into a projection objective, which may be displaced laterally.
IPC 1-7
IPC 8 full level
G02B 27/22 (2006.01); G03B 21/132 (2006.01); H04N 9/31 (2006.01)
CPC (source: EP)
G02B 30/35 (2020.01); G03B 21/132 (2013.01); H04N 9/3108 (2013.01)
Citation (search report)
See references of WO 9422049A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9422048 A1 19940929; AU 6389694 A 19941011; AU 6389794 A 19941011; EP 0733229 A1 19960925; SE 9300958 D0 19930323; SE 9300958 L 19940924; WO 9422049 A1 19940929
DOCDB simple family (application)
SE 9400254 W 19940322; AU 6389694 A 19940322; AU 6389794 A 19940322; EP 94911353 A 19940322; SE 9300958 A 19930323; SE 9400253 W 19940322