Global Patent Index - EP 1959715 A1

EP 1959715 A1 2008-08-20 - Traffic signal light

Title (en)

Traffic signal light

Title (de)

Verkehrssignallampe

Title (fr)

Feu de signalisation de trafic

Publication

EP 1959715 A1 (EN)

Application

EP 08250445 A

Priority

GB 0702315 A

Abstract (en)

Traffic control signal comprising an array of light emitting diodes. Light emitted from one light emitting diode passes through a first optical filter (36) and is sensed by a light detector (18). An electro-optic feedback system uses the detected light to control the light emitting diodes.

IPC 8 full level

H05B 33/08 (2006.01)

CPC

B61L 5/1836 (2013.01); B61L 5/1845 (2013.01); B61L 5/1881 (2013.01); H05B 33/0851 (2013.01); B61L 2207/02 (2013.01)

Citation (applicant)

Citation (search report)

DCS

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA MK RS

DOCDB simple family

EP 1959715 A1 20080820; GB 0702315 D0 20070321; GB 2446410 A 20080813; GB 2446410 B 20110713