Industry Patents
Patent: 12123557
Illumination Device with White and Non-White Sources
(Click image for PDF of full patent)
| Patent Number: |
12123557 |
| Title: |
Illumination Device with White and Non-White Sources |
| Abstract: |
There is presented an illumination device (244) comprising a plurality of light sources (103) emitting light along an optical axis (247); a light collector (241) adapted to collect light from the light sources, wherein the plurality of light sources (103) comprises: A first group (404) of light sources comprising a plurality of light sources, which can be driven to emit white light, a second group (405) of light sources comprising a plurality of light sources which can be driven, such as can only be driven, to emit non-white light (such as green light), wherein the plurality of light sources can be driven so that a total Duv value of light emitted from the illumination device is closer to zero than each of a first Duv value of light emitted from the illumination device originating from the first group (404) of light sources and a second Duv value of light emitted form the illumination device originating from the second group (405) of light sources, and a luminous efficacy of the second group (405) of light sources is higher than a luminous efficacy of the first group (404) of light sources. |
| Country of Issue: |
US |
| First Named Inventor: |
Joergensen |
| Assignee: |
Harman Professional |
| Continuation or Divisional of: |
|
| International Classification: |
F21S 10/02 |
| US Classification: |
F21S 10/023 |
| Issue Date: |
10-22-2024 |
| Filing Date: |
01-15-2020 |
| Application : |
17/792696 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
12123557 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
12123557 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
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