Invention Grant
- Patent Title: Light source device and projection display apparatus
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Application No.: US15240349Application Date: 2016-08-18
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Publication No.: US09778552B2Publication Date: 2017-10-03
- Inventor: Takuya Yamaguchi
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon USA, Inc., IP Division
- Priority: JP2015-169631 20150828
- Main IPC: G03B21/16
- IPC: G03B21/16 ; G03B21/20
Abstract:
A light source device includes heat releasing fins for cooling a blue light emitting diode (LED), a red LED, and a green LED, respectively, which are located next to each other in a direction in which a cooling fan blows air. A space formed between an upper surface of an optical unit and the heat releasing fins enable cooling air of the cooling fan to pass through the space.
Public/Granted literature
- US20170059973A1 LIGHT SOURCE DEVICE AND PROJECTION DISPLAY APPARATUS Public/Granted day:2017-03-02
Information query
