Invention Grant
US09250505B2 Light source unit including a laser as a light source and a light emitting wheel with a diffusion layer opposite to the laser
有权
光源单元包括作为光源的激光器和具有与激光器相对的扩散层的发光轮
- Patent Title: Light source unit including a laser as a light source and a light emitting wheel with a diffusion layer opposite to the laser
- Patent Title (中): 光源单元包括作为光源的激光器和具有与激光器相对的扩散层的发光轮
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Application No.: US13959222Application Date: 2013-08-05
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Publication No.: US09250505B2Publication Date: 2016-02-02
- Inventor: Naotsugu Ogura
- Applicant: Casio Computer Co., Ltd.
- Applicant Address: JP Tokyo
- Assignee: CASIO COMPUTER CO., LTD.
- Current Assignee: CASIO COMPUTER CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Holtz, Holtz & Volek PC
- Priority: JP2009-085422 20090331
- Main IPC: G03B21/20
- IPC: G03B21/20 ; G02B5/02 ; F21V9/16 ; H04N9/31
Abstract:
A projector includes a light source unit, a light guiding device, a display device, a projection side optical system, and a projector control unit. The light source unit includes a light source which emits laser light in the wavelength band of blue, a light emitting wheel disposed on an optical axis of the light source, and a wheel motor for driving to rotate the light emitting wheel. The light emitting wheel is formed of a circular substrate having a diffusion layer on a predetermined surface thereof, the diffusion layer being made up of minute irregularities which are formed directly on a surface of the circular substrate.
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