US 11,898,742 B2
Spotlight LED light source
Erwin Melzner, Frasdorf (DE)
Assigned to ARNOLD & RICHTER CINE TECHNIK GMBH & CO. BETRIEBS KG, Munich (DE)
Appl. No. 17/640,783
Filed by ARNOLD & RICHTER CINE TECHNIK GMBH & CO. BETRIEBS KG, Munich (DE)
PCT Filed Aug. 11, 2020, PCT No. PCT/EP2020/072506
§ 371(c)(1), (2) Date Mar. 4, 2022,
PCT Pub. No. WO2021/043543, PCT Pub. Date Mar. 11, 2021.
Claims priority of application No. 19195841 (EP), filed on Sep. 6, 2019.
Prior Publication US 2022/0333762 A1, Oct. 20, 2022
Int. Cl. F21V 7/04 (2006.01); F21V 19/00 (2006.01); F21Y 105/12 (2016.01); F21Y 113/10 (2016.01); F21Y 115/10 (2016.01); F21W 131/406 (2006.01)
CPC F21V 7/041 (2013.01) [F21V 19/0035 (2013.01); F21W 2131/406 (2013.01); F21Y 2105/12 (2016.08); F21Y 2113/10 (2016.08); F21Y 2115/10 (2016.08)] 19 Claims
OG exemplary drawing
 
1. A light source for a spotlight, comprising:
(i) a carrier with a single-layer circuit board, a plurality of LEDs of N>2 different color arranged on the carrier, and an N number of current lines for supplying the LEDs, the current lines forming no crossing regions in a vertical projection of an envelope of the LEDs;
(ii) a lensless collector optical system for collecting and mixing the light emanating from the LEDs;
(iii) an output optical system position to receive light from the collector optical system and outputting it towards a desired area;
(iv) at least one control device for controlling the plurality of LEDs;
(v) a holder, wherein the collector optical system is embedded in the holder, and the holder having a front face adjoining the output optical system, and a rear face with a flange portion; and
(vi) a coupling layer configured to attach the flange portion to the carrier.