IMPROVED µ-LED PROJECTION DEVICE AND METHOD FOR ITS MANUFACTURE
US-2024248381-A1 · Jul 25, 2024 · US
Light source apparatus and projector
US8950873B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8950873-B2 |
| Application number | US-201313918894-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 14, 2013 |
| Priority date | Jun 15, 2012 |
| Publication date | Feb 10, 2015 |
| Grant date | Feb 10, 2015 |
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Abstract
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A coherent light source apparatus comprises a first optical system, which has a first light emission region formed by a coherent light source, and which projects light from the first light emission region to form a second light emission region, a light deflection unit which deflects light flux in connection with formation of the second light emission region; a second optical system, which forms a third light emission region in response to the light flux which has been deflected by the light deflection unit, a light mixing unit for mixing a component of an incident light angle and that of a position thereof, and a light deflection unit drive circuit for receiving a periodic optical deflection synchronization signal, thereby driving the light deflection unit, wherein the light deflection unit operates to continuously change a direction in which the light flux is deflected while synchronizing with the optical deflection synchronization signal.
First claim
Opening claim text (preview).
What is claimed is: 1. A coherent light source apparatus comprising: a first optical system (Eu), which has a first light emission region (Gs) formed by a coherent light source (Sc), and which projects light from the first light emission region (Gs) so as to form a second light emission region (Gu); a light deflection unit (Md) which deflects light flux (Bu) in connection with formation of the second light emission region (Gu) near the second light emission region (Gu); a seco…
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Electricity · mapped topic
Physics · mapped topic
Electricity · mapped topic
Physics · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8950873B2 cover?
- A coherent light source apparatus comprises a first optical system, which has a first light emission region formed by a coherent light source, and which projects light from the first light emission region to form a second light emission region, a light deflection unit which deflects light flux in connection with formation of the second light emission region; a second optical system, which forms…
- Who is the assignee on this patent?
- Ushio Electric Inc
- What technology area does this patent fall under?
- Primary CPC classification G03B21/2033. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 10 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).