发明授权
- 专利标题： Optical member, light source apparatus, display apparatus, and terminal apparatus
- 专利标题（中）： 光学构件，光源装置，显示装置和终端装置
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申请号： US14062436申请日： 2013-10-24
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公开(公告)号： US08848139B2公开(公告)日： 2014-09-30
- 发明人: Shinya Niioka , Ken Sumiyoshi , Shin-Ichi Uehara , Masao Imai , Kenichi Takatori , Fujio Okumura
- 申请人： NEC Corporation
- 申请人地址： JP Kanagawa
- 专利权人： NLT Technologies, Ltd.
- 当前专利权人： NLT Technologies, Ltd.
- 当前专利权人地址： JP Kanagawa
- 代理机构： Dickstein Shapiro LLP
- 优先权： JP2005-185773 20050624
- 主分类号： G02F1/1335
- IPC分类号： G02F1/1335 ; G02B3/08 ; F21V13/02 ; F21V33/00 ; F21V8/00
摘要：
An optical member including: a Fresnel lens sheet for deflecting and emitting deflected light, A louver for restricting a direction of light rays, where the louver restricts the traveling direction of incident light from the deflecting element to a direction that is parallel to the optical path of the incident light, and emits the restricted light. The Fresnel lens sheet is disposed so that a machined surface thereof faces the louver.
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