发明申请
- 专利标题: Lighting device
- 专利标题(中): 照明设备
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申请号: US10993585申请日: 2004-11-19
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公开(公告)号: US20050110388A1公开(公告)日: 2005-05-26
- 发明人: Norihito Takeuchi
- 申请人: Norihito Takeuchi
- 优先权: JP2003-435333 20031124
- 主分类号: G02F1/13357
- IPC分类号: G02F1/13357 ; F21S2/00 ; F21V8/00 ; F21Y105/00 ; G02B6/00 ; H01J1/62 ; H01L51/50 ; H05B33/00 ; H05B33/02 ; H05B33/12 ; H05B33/14 ; H05B33/22
摘要:
A lighting device comprising a transparent substrate, an electroluminescent device and a light redirecting member. The transparent substrate has an incident surface, an end face and a light emitting surface opposite to the incident surface. The electroluminescent device is disposed on the incident surface and comprises a light emitting portion. The light redirecting member is disposed in a portion of the transparent substrate for redirecting light entering into the transparent substrate from the incident surface and which is transmitted toward at least one of said incident surface and said end face, to said light emitting surface. The incident surface and the light emitting surface each comprises a first area which overlaps said light emitting portion and a second area which does not overlap said light emitting portion. The portion of said transparent substrate is defined at least by the second areas of the incident surface and the light emitting surface.