发明申请
- 专利标题： Lighting apparatus
- 专利标题（中）： 照明设备
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申请号： US11122525申请日： 2005-05-04
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公开(公告)号： US20050253492A1公开(公告)日： 2005-11-17
- 发明人: Noriyuki Besshi , Haruyuki Ishikawa , Norihito Takeuchi , Minoru Toeda , Mikio Yoshida , Shuji Koike
- 申请人： Noriyuki Besshi , Haruyuki Ishikawa , Norihito Takeuchi , Minoru Toeda , Mikio Yoshida , Shuji Koike
- 优先权： JP2004-145545 20040514; JP2004-213484 20040721
- 主分类号： G02F1/13357
- IPC分类号： G02F1/13357 ; F21S2/00 ; F21Y105/00 ; H01J1/62 ; H01L27/32 ; H01L51/50 ; H01L51/52 ; H05B33/02 ; H05B33/12 ; H05B33/14
摘要：
A luminescent panel has a light emitting portion for emitting isotropic light and a non-light emitting portion. A brightness compensating member has an incident portion and a light exit portion. The incident portion includes at least one inclined surface that is inclined relative to the light exit portion. The inclined surface is arranged to correspond to the non-light emitting portion. The inclined surface is configured so that the brightness of a section of the brightness compensating member that corresponds to the light emitting portion is substantially equal to the brightness of a section of the brightness compensating member that corresponds to the non-light emitting portion. Therefore, a substantially uniform brightness is obtained from the light exit portion.
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