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1. (WO2013114259) METHOD, OPTICAL SYSTEM AND LIGHTING ARRANGEMENT FOR HOMOGENIZING LIGHT

Pub. No.:    WO/2013/114259    International Application No.:    PCT/IB2013/050665
Publication Date: Fri Aug 09 01:59:59 CEST 2013 International Filing Date: Sat Jan 26 00:59:59 CET 2013
IPC: G02B 6/42
G02B 27/09
A61B 18/22
Applicants: KONINKLIJKE PHILIPS N.V.
Inventors: TUKKER, Teunis, Willem
IJZERMAN, Willem, Lubertus
GOORDEN, Sebastianus, Adrianus
Title: METHOD, OPTICAL SYSTEM AND LIGHTING ARRANGEMENT FOR HOMOGENIZING LIGHT
Abstract:
A method, an optical system and a lighting arrangement for homogenizing a bundle of light rays (110) by means of an elongated optical element (100) arranged for homogenizing light. The bundle of light rays is directed into a transversal entry face (101) of the optical element, and into at least one of the following geometrical regions: (a) a neighbourhood of the perimeter of the entry face; (b) a neighbourhood of at least a portion of a first line segment (R1) extending from the centre of the entry face to a midpoint of a vertex (123); (c) a neighbourhood of at least a portion of a second line segment (R2a) extending from the centre of the entry face to a midpoint of an edge (122).