Two-piece LCD projection device with light filter function and projection method thereof
US-12140854-B1 · Nov 12, 2024 · US
Light source unit and projector incorporating the same
US9348200B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9348200-B2 |
| Application number | US-201414202482-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 10, 2014 |
| Priority date | Mar 14, 2013 |
| Publication date | May 24, 2016 |
| Grant date | May 24, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
A light source unit emitting a light on an optical axis includes a first light emitter to emit a light in a certain wavelength band, a second light emitter to emit a light in a wavelength band different from that of the first light emitter, a third light emitter to emit a light in a wavelength band different from those of the first and second light emitters, a lighting path through which the lights from the first, second, and third light emitters are guided to propagate on the optical axis and into which the light from the third light emitter is joined at a hindmost position in a traveling direction on the optical axis, and an optical adjuster to exert an optical effect on the light from the third light emitter and not to exert an optical effect on the light rays from the first and second light emitters.
First claim
Opening claim text (preview).
What is claimed is: 1. A light source unit to emit a light ray on a single optical axis, comprising: a first light emitter to emit a light ray in a certain wavelength band; a second light emitter to emit a light ray in a wavelength band different from that of the first light emitter; a third light emitter to emit a light ray in a wavelength band different from the wavelength bands of the first and second light emitters; a lighting path through which the light rays from the f…
Assignees
Inventors
Classifications
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G03B21/142Primary
Physics · mapped topic
- G03B21/204Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US9348200B2 cover?
- A light source unit emitting a light on an optical axis includes a first light emitter to emit a light in a certain wavelength band, a second light emitter to emit a light in a wavelength band different from that of the first light emitter, a third light emitter to emit a light in a wavelength band different from those of the first and second light emitters, a lighting path through which the li…
- Who is the assignee on this patent?
- Takahashi Tatsuya, Fujita Kazuhiro, Murai Toshiharu, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification G03B21/142. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue May 24 2016 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).