- Patent Title: Resin sheet producing method, optical member produced by resin sheet producing method, area light source device in which optical member is used, liquid crystal display device, and mobile device
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Application No.: US13763123Application Date: 2013-02-08
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Publication No.: US09618180B2Publication Date: 2017-04-11
- Inventor: Koichi Takemura , Gouo Kurata , Yoshihisa Yamanaka , Masayuki Kojima , Morihisa Ota
- Applicant: OMRON Corporation
- Applicant Address: JP Kyoto
- Assignee: OMRON Corporation
- Current Assignee: OMRON Corporation
- Current Assignee Address: JP Kyoto
- Agency: Osha Liang LLP
- Priority: JP2012-243983 20121105
- Main IPC: F21V5/02
- IPC: F21V5/02 ; B26D11/00 ; B26D7/27 ; F21V8/00
Abstract:
An area light source device has a transfer-molded optical member, and a light source disposed in a position facing at least one of end faces of the optical member. Light incident to the optical member from the light source is output through a light exit surface of the optical member. A cutting back clearance portion is provided in at least one of corner portions of the end face of the optical member.
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