EP 0460913 A2 19911211 - A lighting unit having a lamp and a reflector.
Title (en)
A lighting unit having a lamp and a reflector.
Title (de)
Beleuchtungseinheit mit Lampe und Reflektor.
Title (fr)
Unité d'éclairage comprenant une lampe et un réflecteur.
Publication
Application
Priority
JP 14448690 A 19900604
Abstract (en)
The lighting unit of the present invention is composed of a lamp (11) having a first interference multi-layer, filter as the first film (25) and a reflector (31) having a second interference multi-layer filter as the second film (35). The first interference multi-layer filter forms a visible light transparency/ infrared-ray reflecting film and the second interference multi-layer filter forms a infrared-ray transmitting/ visible light reflecting film. Both the first interference multi-layer filter and the second interference multi-layer filter are likely to cause the range of wavelength of light transmitting and light reflecting to vary from the specific range. Therefore both the first film (25) and the second film (35) have means for preventing the above described variation (thickness varying according to the position of the films (25) and (35)). <IMAGE>
IPC 1-7
IPC 8 full level
F21S 8/10 (2006.01); F21V 7/22 (2006.01); F21V 9/00 (2006.01); F21V 9/04 (2006.01); F21V 13/08 (2006.01); G02B 5/28 (2006.01); H01K 1/32 (2006.01); H01K 7/00 (2006.01)
CPC (source: EP KR US)
F21S 41/13 (2017.12 - EP); F21S 41/37 (2017.12 - EP); F21V 7/06 (2013.01 - KR); F21V 7/22 (2013.01 - EP US); F21V 9/00 (2013.01 - EP US); H01K 1/32 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0460913 A2 19911211; EP 0460913 A3 19920826; JP H0439854 A 19920210; KR 920001123 A 19920130; KR 930007438 B1 19930810
DOCDB simple family (application)
EP 91305037 A 19910604; JP 14448690 A 19900604; KR 910009144 A 19910603