Light-producing assembly for a spotlight and spotlight

Patent metadata

Field	Value
Publication number	US-11105491-B2
Application number	US-201916442465-A
Country	US
Kind code	B2
Filing date	Jun 15, 2019
Priority date	Jun 15, 2018
Publication date	Aug 31, 2021
Grant date	Aug 31, 2021

Abstract

A light-producing assembly for a spotlight for illuminating film, studio, stage, event and/or theater surroundings comprises a carrier, on which an LED arrangement with a multiplicity of LEDs is arranged. Here, the LEDs are provided by N>2 different color types. The assembly also comprises a line system for supplying power to the LEDs, which comprises a multiplicity of lines with N line types, wherein lines of different line types cross in crossing regions and the crossing regions lie outside of a vertical projection surface of footprint sides of the LEDs in a vertical plan view of the carrier front side. Further, the assembly comprises an optical unit coupled to the LED arrangement, said optical unit spanning the totality of the LEDs. Moreover, a spotlight comprises such a light-producing assembly.

First claim

The invention claimed is:

1. A light-producing assembly for a spotlight for illuminating film, studio, stage, event and/or theater surroundings, comprising
a carrier, on which an LED arrangement with a multiplicity of LEDs is arranged, wherein the LEDs comprise LEDs with N>2 different color types and any number of LEDs is provided for each of the N color types, and wherein a footprint side of one of each of the LEDs faces a carrier front side, wherein the carrier is embodied as a single layer circuit board;
a line system for supplying power to the LEDs, comprising a multiplicity of lines with N line types, wherein lines of different line types cross in crossing regions and the crossing regions lie outside of a vertical projection surface of the footprint sides on the carrier front side in a vertical plan view of the carrier front side; and
an optical unit coupled to the LED arrangement, said optical unit spanning the totality of the LEDs and being embodied to receive and form the light emanating from each of the LEDs.

2. The assembly as claimed in claim 1 , wherein the crossing lines extend one above the other in a direction vertical to a carrier front side and the crossing lines are integrated into the carrier in the respective crossing region or one of the crossing lines is embodied as a bonding bridge which spans the respective other crossing line.

3. The assembly as claimed in claim 2 , wherein all LEDs are arranged according to a regular grid on the carrier front side, according to which:
a multiplicity of grid tracks that do not overlap and that are arranged at a transverse distance from one another are provided on the carrier front side;
each grid track comprises a multiplicity of grid holding areas, an LED being positionable therein in each case, wherein the grid holding areas are arranged individually in succession along a fictitious trajectory from the grid track entrance to the grid track exit;
a protective apparatus acting as a diffuser, which is provided at a light emergence side of the optical unit and
at least one LED of each of the N different color types is provided in each of at least 90% of all grid tracks, wherein the LEDs are arranged in any sequence within the grid tracks;
wherein the optical unit is embodied as a conical or polygonal reflector,
wherein the optical unit has a light entry opening and a light emergence opening, which are connected by way of a light-guiding section, wherein an inner side of the light-guiding section is reflective; and
wherein, in a plan view of the carrier front side, an envelope of the multiplicity of LEDs is a closed polygonal chain, a circle or an oval, and an edge region of the light entry opening corresponds to the envelope in respect of its form and its size.

4. The assembly as claimed in claim 3 , wherein the optical unit is embodied as a reflector with a hexagonal cross-sectional area.

5. The assembly as claimed in claim 4 , further comprising a protective apparatus acting as a diffuser, wherein the diffuser is a stochastic diffuser, which is provided at a light emergence side of the optical unit.

6. The assembly as claimed in claim 4 , further comprising a protective apparatus acting as a diffuser, wherein the diffuser is a holographic diffuser, which is provided at a light emergence side of the optical unit.

7. The assembly as claimed in claim 1 , wherein all LEDs are arranged according to a regular grid on the carrier front side, according to which:
a multiplicity of grid tracks that do not overlap and that are arranged at a transverse distance from one another are provided on the carrier front side;
each grid track comprises a multiplicity of grid holding areas, an LED being positionable therein in each case, wherein the grid holding areas are arranged individually in succession along a fictitious trajectory from the grid track entrance to the grid track exit; and
at least one LED of each of the N different color types is provided in each of at least 90% of all grid tracks, wherein the LEDs are arranged in any sequence within the grid tracks.

8. The assembly as claimed in claim 1 , wherein the optical unit is embodied as a conical or polygonal reflector.

9. The assembly as claimed in claim 1 , further comprising a protective apparatus acting as a diffuser, which is provided at a light emergence side of the optical unit.

10. The assembly as claimed in claim 1 , wherein the optical unit is a singular collimation optical unit.

11. The assembly as claimed in claim 1 , wherein the optical unit has a light entry opening and a light emergence opening, which are connected by way of a light-guiding section, wherein an inner side of the light-guiding section is reflective.

12. The assembly as claimed in claim 11 , wherein, in a plan view of the carrier front side, an envelope of the multiplicity of LEDs is a closed polygonal chain, a circle or an oval, and an edge region of the light entry opening corresponds to the envelope in respect of its form and its size.

13. A spotlight comprising a light-producing assembly as claimed in claim 1 .

14. The assembly as claimed in claim 1 , wherein the optical unit is embodied as a reflector with a hexagonal cross-sectional area.

15. The assembly as claimed in claim 1 , further comprising a protective apparatus acting as a diffuser, wherein the diffuser is a stochastic diffuser, which is provided at a light emergence side of the optical unit.

16. The assembly as claimed in claim 1 , further comprising a protective apparatus acting as a diffuser, wherein the diffuser is a holographic diffuser, which is provided at a light emergence side of the optical unit.

Assignees

• Arnold & Richter Cinetech

Inventors

• Hendricks Frank
• Schumacher Volker
• Melzner Erwin

Classifications

• H10W90/00 Primary

  Package configurations · CPC title

• H10H20/856

  Reflecting means · CPC title

• H10H20/857

  Interconnections, e.g. lead-frames, bond wires or solder balls · CPC title

• H10H20/8585

  being an interconnection · CPC title

• F21K9/20 Primary

  Light sources comprising attachment means · CPC title