Invention Grant
- Patent Title: Surface light source apparatus having cut out portions where a reflecting portion is not present
- Patent Title (中): 具有不存在反射部的切除部的表面光源装置
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Application No.: US14408815Application Date: 2013-06-05
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Publication No.: US09448352B2Publication Date: 2016-09-20
- Inventor: Suguru Matsumura , Yoshihiro Kawasaki , Kazuhiro Hayashi , Akihisa Yamada , Masahiko Hirata , Keiichi Zaitsu
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2012-137512 20120619
- International Application: PCT/JP2013/003522 WO 20130605
- International Announcement: WO2013/190788 WO 20131227
- Main IPC: F21V7/04
- IPC: F21V7/04 ; F21V8/00
Abstract:
A surface light source apparatus includes an end face for taking in light emitted from a light source and a main surface for emitting the light. The surface light source apparatus further includes a plurality of structure bodies formed on an opposed surface disposed opposite to the main surface in the surface light source apparatus, each of which has a reflecting surface facing the point light source. Each structure body has a cut-off portion which removes a portion on the reflecting surface in a longitudinal direction of the structure body and in a height direction.
Public/Granted literature
- US20150185399A1 SURFACE LIGHT SOURCE APPARATUS Public/Granted day:2015-07-02
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