Invention Grant
- Patent Title: Light source apparatus, electronic device, and control methods therefor
- Patent Title (中): 光源装置，电子装置及其控制方法
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Application No.: US13750485Application Date: 2013-01-25
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Publication No.: US09099043B2Publication Date: 2015-08-04
- Inventor: Tatsuya Miyagi
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Cowan, Liebowitz & Latman, P.C.
- Priority: JP2012-018190 20120131; JP2012-254183 20121120
- Main IPC: G09G5/10
- IPC: G09G5/10 ; H05B37/02 ; G09G3/34 ; H02M7/217
Abstract:
A light source device including: a boost-type conversion unit configured to convert an input AC voltage into a DC voltage; a detection unit configured to detect a voltage value of the input AC voltage; and a control unit configured to control the brightness of a light source unit on the basis of an input image signal. The control unit changes the timing of brightness change of the light source unit according to a voltage value detected by the detection unit.
Public/Granted literature
- US20130194318A1 LIGHT SOURCE APPARATUS, ELECTRONIC DEVICE, AND CONTROL METHODS THEREFOR Public/Granted day:2013-08-01
Information query
