Two-piece LCD projection device with light filter function and projection method thereof
US-12140854-B1 · Nov 12, 2024 · US
Projector having a turbulent flow plate disposed between a light modulator and a polarizer
US9010941B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9010941-B2 |
| Application number | US-201213692588-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 3, 2012 |
| Priority date | Dec 7, 2011 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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Abstract
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A projector includes a light source unit, a light modulator that modulates light exited from the light source unit, a polarizer or a wave plate provided on a light incident side of the light modulator, a cooling unit that supplies cooling air to the light incident side of the light modulator, and a turbulent flow plate disposed between the light modulator and the polarizer or the wave plate in a path along which the cooling air from the cooling unit flows toward a light incident surface of the light modulator, the turbulent flow plate having a fin that tapers from a base end toward a tip.
First claim
Opening claim text (preview).
What is claimed is: 1. A projector comprising: a light source unit; a light modulator that modulates light exited from the light source unit; a polarizer or a wave plate provided on a light incident side of the light modulator; a cooling unit that supplies cooling air to the light incident side of the light modulator; and a turbulent flow plate disposed between the light modulator and the polarizer or the wave plate in a path along which the cooling air from the cooling un…
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Physics · mapped topic
Physics · mapped topic
Electricity · mapped topic
- G03B21/16Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US9010941B2 cover?
- A projector includes a light source unit, a light modulator that modulates light exited from the light source unit, a polarizer or a wave plate provided on a light incident side of the light modulator, a cooling unit that supplies cooling air to the light incident side of the light modulator, and a turbulent flow plate disposed between the light modulator and the polarizer or the wave plate in …
- Who is the assignee on this patent?
- Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification G03B21/16. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 21 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).