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Light source module and projection apparatus for switching illumination between wavelength conversion element and reflection element
US9057940B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9057940-B2 |
| Application number | US-201213678499-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 15, 2012 |
| Priority date | Apr 24, 2012 |
| Publication date | Jun 16, 2015 |
| Grant date | Jun 16, 2015 |
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Abstract
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A projection apparatus has a light source module including a light-emitting element, an optical path switching element, a wavelength conversion element, a first reflection element, and a first beam splitter element. The optical path switching element switches a first color beam between a first optical path and a second optical path. When the first color beam is switched to the first optical path, the first color beam is propagated to the wavelength conversion element to excite a first and second wavelength conversion layers on the wavelength conversion element to produce a second color beam and a third color beam. When the first color beam is switched to the second optical path, the first color beam is propagated to the first reflection element.
First claim
Opening claim text (preview).
What is claimed is: 1. A light source module, comprising: a light-emitting element, adapted to emit a first color beam; an optical path switching element, disposed on a propagating path of the first color beam, and the optical path switching element switching the first color beam between a first optical path and a second optical path, wherein the optical path switching element comprises a reflector, and the reflector is adapted to rotate to sequentially reflect the first color b…
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Physics · mapped topic
- G03B21/204Primary
Physics · mapped topic
Physics · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9057940B2 cover?
- A projection apparatus has a light source module including a light-emitting element, an optical path switching element, a wavelength conversion element, a first reflection element, and a first beam splitter element. The optical path switching element switches a first color beam between a first optical path and a second optical path. When the first color beam is switched to the first optical pat…
- Who is the assignee on this patent?
- Chen Ko-Shun, Yang Tzu-Yi, Wang Chia-Hao, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G03B21/204. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jun 16 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).