发明申请
US20120257408A1 LIGHT GUIDE MEMBER, LIGHT GUIDE UNIT, LIGHT GUIDE PACKAGE, ILLUMINATION DEVICE AND DISPLAY DEVICE
审中-公开
光指导会员，灯指导单元，指导灯包，照明装置和显示装置
- 专利标题： LIGHT GUIDE MEMBER, LIGHT GUIDE UNIT, LIGHT GUIDE PACKAGE, ILLUMINATION DEVICE AND DISPLAY DEVICE
- 专利标题（中）： 光指导会员，灯指导单元，指导灯包，照明装置和显示装置
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申请号： US13516812申请日： 2010-11-01
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公开(公告)号： US20120257408A1公开(公告)日： 2012-10-11
- 发明人: Atsuyuki Tanaka , Tomohiko Yamamoto
- 申请人： Atsuyuki Tanaka , Tomohiko Yamamoto
- 申请人地址： JP Osaka-shi, Osaka
- 专利权人： SHARP KABUSHIKI KAISHA
- 当前专利权人： SHARP KABUSHIKI KAISHA
- 当前专利权人地址： JP Osaka-shi, Osaka
- 优先权： JP2009-291531 20091223
- 国际申请： PCT/JP2010/069399 WO 20101101
- 主分类号： F21V8/00
- IPC分类号： F21V8/00 ; F21V13/02 ; G02B6/00
摘要：
In the present invention, a light guide member is provided that can locally control the amount of planar backlight and that is suitable for a thin illumination device. In the light guide member (11), a tubular portion (12) includes a recess (DH) that tapers inward from a top surface (12U) and a constriction line (LN) that is recessed inward from a side surface (12S) and that is along a tube axis direction. A wall portion (13) that is connected to the light guide member (11) and that extends in a direction intersecting the tube axis direction includes, on a side wall (13S), a rough surface (RS) for changing the light within the wall portion such that an optical path becomes suitable for emission to the outside.
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