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1. (WO2018184905) OPTICAL OUTPUT SYSTEM AND LIGHTING UNIT COMPRISING THE SYSTEM

Pub. No.:    WO/2018/184905    International Application No.:    PCT/EP2018/057716
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Wed Mar 28 01:59:59 CEST 2018
IPC: F21V 5/00
F21V 5/04
H01L 33/58
G02B 19/00
G02B 3/00
Applicants: PHILIPS LIGHTING HOLDING B.V.
Inventors: BOONEKAMP, Erik, Paul
Title: OPTICAL OUTPUT SYSTEM AND LIGHTING UNIT COMPRISING THE SYSTEM
Abstract:
An optical output system for an LED light source has a pair of lens arrays (40, 42) with a narrow air gap (48) between the lens arrays (40, 42). The optical system provides an optical integration function for light mixing, and the air gap (48) enables a uniform wide-beam output to be provided even for incident light from a wide range of angles, for example as received from a non-collimated light source.