Invention Grant
- Patent Title: Light guide unit that guides light in an original document reading apparatus
- Patent Title (中): 导光单元，用于引导原稿读取装置中的光
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Application No.: US13827386Application Date: 2013-03-14
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Publication No.: US09253358B2Publication Date: 2016-02-02
- Inventor: Ayumu Murakami
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2012-095019 20120418
- Main IPC: H04N1/04
- IPC: H04N1/04 ; H04N1/028 ; F21V8/00 ; H04N1/00 ; H04N1/03
Abstract:
A plurality of LEDs (light emitting diodes) are mounted upon a metallic plate member, and thus heat from the plurality of LEDs is transmitted to the metallic plate member. The plate member functions as a heat radiating plate. In addition, a light guide is fixed to the plate member so that a surface of the light guide and a surface of the plate member that face each other are parallel.
Public/Granted literature
- US20130278975A1 LIGHT GUIDE UNIT THAT GUIDES LIGHT IN AN ORIGINAL DOCUMENT READING APPARATUS Public/Granted day:2013-10-24
Information query
