Invention Grant
- Patent Title: Light source, control method for light source, and projection system having light source
- Patent Title (中): 光源，光源控制方法和具有光源的投影系统
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Application No.: US13263286Application Date: 2010-04-07
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Publication No.: US09088731B2Publication Date: 2015-07-21
- Inventor: Yi Li , Quanquan Chen
- Applicant: Yi Li , Quanquan Chen
- Applicant Address: CN Shenzhen
- Assignee: APPOTRONICS CORPORATION LIMITED
- Current Assignee: APPOTRONICS CORPORATION LIMITED
- Current Assignee Address: CN Shenzhen
- Agency: Chen Yoshimura LLP
- Priority: CN200910106527 20090407
- International Application: PCT/CN2010/000452 WO 20100407
- International Announcement: WO2010/115345 WO 20101014
- Main IPC: G03B21/20
- IPC: G03B21/20 ; H04N9/31
Abstract:
A light source includes a first light emitting source (2), a second light emitting source (3), a color-adjusting apparatus (1) with light wavelength conversion material, a control unit, and a positioning apparatus provided on the color-adjusting apparatus (1). The positioning apparatus sends a positioning signal which indicates a position of the color-adjusting apparatus to the control unit. The control unit outputs a control signal to the power switch of the second light emitting source so that the second light emitting source is controlled to stop emitting the light when the light generated by the color-adjusting apparatus is the same as that of the first light emitting source. A control method for light source and a projection system having light source are also disclosed.
Public/Granted literature
- US20120120120A1 LIGHT SOURCE, CONTROL METHOD FOR LIGHT SOURCE, AND PROJECTION SYSTEM HAVING LIGHT SOURCE Public/Granted day:2012-05-17
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