EP 0136684 A2 19850410 - Projection lamp unit.
Title (en)
Projection lamp unit.
Title (de)
Projektionslampeneinheit.
Title (fr)
Elément de lampe de projection.
Publication
Application
Priority
US 53872183 A 19831003
Abstract (en)
An improved projection lamp unit including a glass reflector having a concave reflecting surface and a tungsten halogen lamp positioned within the concavity of the reflector. The concave reflecting surface of the reflector is provided with alternately disposed radially extending regions including a series of specular stripes in combination with alternately spaced regions of facets. Preferably four or five stripes and an associated four or five facet regions are provided.
IPC 1-7
IPC 8 full level
F21V 7/10 (2006.01); F21S 2/00 (2006.01); F21V 7/00 (2006.01); F21V 7/04 (2006.01); F21V 7/09 (2006.01); G02B 5/10 (2006.01); G02B 17/00 (2006.01); G03B 21/14 (2006.01); H01K 7/02 (2006.01)
CPC (source: EP)
F21V 7/09 (2013.01)
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
EP 0136684 A2 19850410; EP 0136684 A3 19860122; EP 0136684 B1 19870819; CA 1245201 A 19881122; DE 3465509 D1 19870924; JP S6097543 A 19850531
DOCDB simple family (application)
EP 84111688 A 19840929; CA 464357 A 19840928; DE 3465509 T 19840929; JP 20570384 A 19841002