Light collector with complementing rotationally asymmetric central and peripheral lenses
US-9010967-B2 · Apr 21, 2015 · US
Color mixing illumination device
US9714745B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9714745-B2 |
| Application number | US-201214128021-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 29, 2012 |
| Priority date | Jun 29, 2011 |
| Publication date | Jul 25, 2017 |
| Grant date | Jul 25, 2017 |
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- Title
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Abstract
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An illumination device or method of generating illumination using an illumination device is described with two light sources with different spectral distribution a number of displaceable light collectors collecting light from the light sources where in one mixing position receiving light from both light sources where at least one of the light sources has two independently controllable light emitting areas and in one mixing position the collecting area collects light form the first light emitting area and substantially not from the second light emitting area. Further an unrelated illumination device with at least one Light Emitting Diode, LED and a current spreader connected to and covering a first area of a first side of the lead, spreading current in an irregular pattern and a current controller controlling current flowing through the first current spreader. The current spreader can be patterned to produce a round beam illumination or illumination in a form of a static picture or logo. A round beam illumination can better cooperate with an optical system of lenses in an illumination device. Further the current spreader can be patterned to have lower current density in the center to reduce/avoid temperature hotspot in the center and obtain a more even die temperature.
First claim
Opening claim text (preview).
The invention claimed is: 1. An illumination device comprising: at least a first light source and at least a second light source, where said first light source and said second light source generate light having different spectral distribution; a number of light collecting means adapted to collect said generated light and to convert said collected light into a number of light beams, said light beams propagate along an optical axis; where said light sources and said ligh…
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Classifications
Mechanical Engineering · mapped topic
- F21K9/64Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F21S10/026Primary
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9714745B2 cover?
- An illumination device or method of generating illumination using an illumination device is described with two light sources with different spectral distribution a number of displaceable light collectors collecting light from the light sources where in one mixing position receiving light from both light sources where at least one of the light sources has two independently controllable light emi…
- Who is the assignee on this patent?
- Jørgensen Dennis, Martin Professional Aps
- What technology area does this patent fall under?
- Primary CPC classification F21K9/64. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jul 25 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).