EP 0328358 A3 19900516 - A VARIABLE COLOUR LIGHT

Title (en)

A VARIABLE COLOUR LIGHT

Publication

EP 0328358 A3 19900516 (EN)

Application

EP 89301189 A 19890208

Priority

CN 88201246 U 19880208

Abstract (en)

[origin: EP0328358A2] A variable colour light comprises a container (10) for constituting a light bulb, red, green and blue lights (R,G,B) so situated in the container that colours from the lights mix together, and a device (14) for controlling the red, green and blue lights (R,G,B). The controlling device (14) controls brightness and length of operation of each light so that the colour emitted from the container (10) can be changed as desired. The colour of the light bulb (10) may be changed automatically.

IPC 1-7

F21V 9/10

IPC 8 full level

F21S 10/02 (2006.01); F21V 9/40 (2018.01)

CPC (source: EP US)

F21S 10/02 (2013.01 - EP US); F21V 9/40 (2018.01 - EP US)

Citation (search report)

[X] DE 1291703 B 19690403 - WINSTORNLEY JOHN ERIC
[X] FR 1260790 A 19610512
[X] GB 2060852 A 19810507 - HON PING CHENG
[X] US 3789211 A 19740129 - KRAMER N
[X] FR 2094891 A5 19720204 - PERITORE JEAN

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

EP 0328358 A2 19890816; EP 0328358 A3 19900516; AU 2975589 A 19890810; CN 88201246 U 19880914

DOCDB simple family (application)

EP 89301189 A 19890208; AU 2975589 A 19890208; CN 88201246 U 19880208