Optical module used in projection device
US9122146B2 · kind B2 · utility
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10Claims
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Assignee
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Key dates
| Filing date | Apr 19, 2013 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Dec 6, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3173
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical module used in a projection device is provided. The optical module includes a base and a filter mirror. The base has an inclined leaning surface and a sidewall surface. The sidewall surface is located at a periphery of the base and forms a through hole along a direction. The inclined leaning surface is extended from the sidewall surface and an inclined angle is formed between the inclined leaning surface and the direction. The filter mirror is disposed on the inclined leaning surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.