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US 11,898,742 B2Granted
Spotlight LED light source
AssigneeArnold & Richter Cine Technik GmbH & Co. Betriebs KG
InventorErwin Melzner
Life of this patent
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Abstract
A light source for a spotlight includes a carrier, a plurality of LEDs of different colors arranged on the carrier, a lensless collector optical system for collecting and mixing light from the LEDs, an output optical system for projecting the light from the collector optical system, and a control device for controlling the LEDs.
Claims19
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.
4 more elements
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;
- (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;
- wherein crossing regions of the current lines in at least one of in the carrier, above the carrier, or below the carrier, are formed exclusively in those regions which do not overlap any vertical projection of each of the LEDs.
5 more elements
Dependencies are inferred from the claim text.