EP 2100182 A2 20090916 - MULTI-PRIMARY LED COLLIMATION OPTIC ASSEMBLIES
Title (en)
MULTI-PRIMARY LED COLLIMATION OPTIC ASSEMBLIES
Title (de)
OPTISCHE ANORDNUNGEN VON MULTIPRIMÄRER LED-BÜNDELUNG
Title (fr)
ENSEMBLES OPTIQUES DE COLLIMATION A DIODES ELECTROLUMINESCENTES PRIMAIRES MULTIPLES
Publication
Application
Priority
- US 2007088812 W 20071226
- US 87158106 P 20061222
Abstract (en)
[origin: WO2008080165A2] The present invention relates to an optical assembly which improves color uniformity and improved collimation of light produced by multiple LED light sources in a light engine. The optical assembly is specifically tailored to match the placement of the solid-state emitters making up the light engine or light producing element. Specifically, a shaped free-form spline patch inner collimation lens having an optimized cross-sectional shape and micro-ridges is used to disperse light; multi-lobe TIR collimation lens having an optimized cross-sectional shape and micro-ridges is used to disperse and redistribute phase as well as provide collimation; primary mixing lenslet array having an optimized surface is used to disperse light from the light emitter; a spline profile reflector further mixes and collimates the light; a secondary lenslet array further mixes the light; and a secondary collimation lens further collimates the light.
IPC 8 full level
G02B 27/30 (2006.01); F21S 8/00 (2006.01); F21V 5/00 (2006.01); F21V 7/00 (2006.01); G02B 17/08 (2006.01); G02B 27/09 (2006.01)
CPC (source: EP US)
F21K 9/00 (2013.01 - EP US); G02B 3/0006 (2013.01 - EP US); G02B 17/0856 (2013.01 - EP); G02B 19/0028 (2013.01 - EP); G02B 19/0066 (2013.01 - EP); G02B 27/095 (2013.01 - EP); G02B 27/0994 (2013.01 - EP); H01L 33/58 (2013.01 - EP)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008080165 A2 20080703; WO 2008080165 A3 20080912; EP 2100182 A2 20090916; EP 2100182 A4 20120104
DOCDB simple family (application)
US 2007088812 W 20071226; EP 07869896 A 20071226