EP 1520188 A1 20050406 - LIGHT-COLLIMATING SYSTEM
Title (en)
LIGHT-COLLIMATING SYSTEM
Title (de)
SYSTEM ZUR KOLLIMIERUNG DES LICHTS
Title (fr)
SYSTEME DE COLLIMATION DE LUMIERE
Publication
Application
Priority
- EP 03738412 A 20030613
- EP 02077560 A 20020628
- IB 0302868 W 20030613
Abstract (en)
[origin: WO2004003603A1] A light-collimating system for collimating light from a light source has a plurality of elements (2, 2', ...), each element including at least a first wall (3, 3', ...) and at least a second wall (4, 4', ...). The first (3) and second wall (4') of adjacent elements are spaced with respect to each other at a side of the light-collimating system facing the light source, the spacing defining an aperture window (5, 5', ...) for admitting light into the light-collimating system. The first and second wall of said adjacent elements form a wedge-shaped structure widening in a direction facing away from the light source. The first and the second wall are provided with a specular reflecting surface at a side facing the wedge-shaped structure. According to the invention, the wedge angle (w of the first and second wall with respect to the normal on the aperture window are adjustable for enabling adjustable collimation.
IPC 1-7
IPC 8 full level
F21V 5/02 (2006.01); G02B 5/00 (2006.01); G02B 5/02 (2006.01); G02B 5/08 (2006.01); G02B 5/10 (2006.01); F21V 7/18 (2006.01); F21V 14/04 (2006.01); G02F 1/13357 (2006.01)
CPC (source: EP US)
F21V 7/18 (2013.01 - EP US); F21V 11/065 (2013.01 - EP); F21V 14/04 (2013.01 - EP); F21Y 2105/00 (2013.01 - EP US); G02F 1/133607 (2021.01 - EP)
Citation (search report)
See references of WO 2004003603A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004003603 A1 20040108; AU 2003244938 A1 20040119; CN 1666117 A 20050907; EP 1520188 A1 20050406; JP 2005531802 A 20051020
DOCDB simple family (application)
IB 0302868 W 20030613; AU 2003244938 A 20030613; CN 03815132 A 20030613; EP 03738412 A 20030613; JP 2004517138 A 20030613