EP 0621440 A1 19941026 - A transparent element for varying the light rays from an illuminating means.
Title (en)
A transparent element for varying the light rays from an illuminating means.
Title (de)
Transparente Vorrichtung zur Veränderung des Lichtstrahls aus einer Lichtquelle.
Title (fr)
Elément transparent pour modifie les rayons lumineux issus d'une source lumineux.
Publication
Application
Priority
DE 4313366 A 19930423
Abstract (en)
The invention relates to an element (1) made of transparent material for varying the light rays from an illuminating means (10), whereby light rays (B) hitting the element at an angle of more than 45 DEG from the optical axis of the element are deflected at least partly so as to be emitted by the element at an angle of less than 45 DEG (B'). <IMAGE>
IPC 1-7
IPC 8 full level
F21V 5/02 (2006.01)
CPC (source: EP US)
F21V 5/02 (2013.01 - EP US); F21V 7/0091 (2013.01 - EP); F21V 13/04 (2013.01 - EP US)
Citation (search report)
- [X] FR 817059 A 19370825 - FORGES ATELIERS CONST ELECTR
- [X] EP 0380663 A1 19900808 - N PROIZV OB AVTOELEKTRONIKE I [SU]
- [X] US 5173810 A 19921222 - YAMAKAWA MASAMI [JP]
- [A] DE 1034116 B 19580717 - HENSOLDT & SOEHNE M, et al
- [A] US 4969074 A 19901106 - DAVIS AUGUST [US], et al
- [A] US 3711704 A 19730116 - SPITERI J
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI LU NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 93117832 A 19931103