发明授权
- 专利标题： Illumination device, surface light source device, and liquid crystal display device
- 专利标题（中）： 照明装置，表面光源装置和液晶显示装置
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申请号： US13002510申请日： 2009-04-10
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公开(公告)号： US08405796B2公开(公告)日： 2013-03-26
- 发明人: Takeshi Masuda , Yuhsaku Ajichi , Yukihide Kohtoku
- 申请人： Takeshi Masuda , Yuhsaku Ajichi , Yukihide Kohtoku
- 申请人地址： JP 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
- 代理机构： Keating & Bennett, LLP
- 优先权： JP2008-182715 20080714
- 国际申请： PCT/JP2009/057380 WO 20090410
- 国际公布： WO2010/007822 WO 20100121
- 主分类号： G02F1/1335
- IPC分类号： G02F1/1335 ; F21V7/04 ; F21V5/00
摘要：
Each of light guides (2) has: a reflection surface (2e); and a light emitting surface (2c) that is opposite to the reflection surface (2e) and is not covered by a neighboring light guide (2). The light emitting surface (2c) is made up of a first emitting surface (7) and a second emitting surface (8). The first emitting surface (7) is substantially parallel with the reflection surface (2e). The second emitting surface (8) is substantially parallel with an irradiated surface. The each of the light guides (2) is provided with microprisms (9) serving as diffusing means at least in a first emitting surface region (12) in which there is the first emitting surface (7).