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1. (WO2017036871) A LIGHTING SYSTEM AND A LIGHTING METHOD

Pub. No.:    WO/2017/036871    International Application No.:    PCT/EP2016/069930
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Thu Aug 25 01:59:59 CEST 2016
IPC: F21V 9/16
F21S 8/12
H04N 9/31
G03B 21/20
Applicants: LUMILEDS HOLDING B.V.
Inventors: HECHTFISCHER, Ulrich
EPMEIER, Matthias
JACOB, Jerry, Gregory
Title: A LIGHTING SYSTEM AND A LIGHTING METHOD
Abstract:
The invention provides a lighting system for generating patterned phosphor- converted output beams for projection onto a pixelated display unit (24). A phosphor screen arrangement (18) comprises a plurality of separate light-receiving surface regions (34), each region (34) illuminated by an individually addressable laser source arrangement. By controlling the relative intensity of light directed to each of the surface regions (34), a broad range of different output beam patterns can be created from the phosphor screen arrangement (18). The generated beam pattern may be controlled so as to correspond with the pixel configuration of the display unit (24), such that light is directed only toward pixels (26) which are active, rather than inactive. This enables significant improvements in optical efficiency, since light need not be wasted through propagation toward pixels (26) which are configured simply to discard it.