Light source device and projector
US-2015362135-A1 · Dec 17, 2015 · US
Optical element and semiconductor light emitting device using the optical element
US8969903B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8969903-B2 |
| Application number | US-201314095946-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 3, 2013 |
| Priority date | Jul 12, 2011 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
An optical element includes a phosphor layer containing a phosphor which is excited by light of a first wavelength and radiates light of a second wavelength different from the first wavelength, a first optical member provided on a first surface of the phosphor layer and configured to concentrate light in the phosphor layer, and a second optical member provided on the first surface of the phosphor layer or the same side to which the first surface faces, or on a second surface opposite to the first surface, and configured to convert light radiated from the phosphor layer into parallel light.
First claim
Opening claim text (preview).
What is claimed is: 1. An optical element, comprising: a phosphor layer containing a phosphor which is excited by light of a first wavelength and radiates light of a second wavelength different from the first wavelength; a first optical member provided on a first surface of the phosphor layer and configured to concentrate light in the phosphor layer; and a second optical member provided on a second surface of the phosphor layer, which is opposite to the first surface, and conf…
Assignees
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Classifications
Electricity · mapped topic
Electricity · mapped topic
Physics · mapped topic
- F21K9/56Primary
Mechanical Engineering · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8969903B2 cover?
- An optical element includes a phosphor layer containing a phosphor which is excited by light of a first wavelength and radiates light of a second wavelength different from the first wavelength, a first optical member provided on a first surface of the phosphor layer and configured to concentrate light in the phosphor layer, and a second optical member provided on the first surface of the phosph…
- Who is the assignee on this patent?
- Panasonic Corp, Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F21K9/56. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 03 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).