发明授权
- 专利标题: Light flux controlling member, light emitting device, and lighting device
- 专利标题(中): 光通量控制构件,发光装置和照明装置
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申请号: US13075359申请日: 2011-03-30
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公开(公告)号: US08777458B2公开(公告)日: 2014-07-15
- 发明人: Akinobu Seki , Kyouhei Yamada , Noriyuki Kawahara , Hiroshi Takatori
- 申请人: Akinobu Seki , Kyouhei Yamada , Noriyuki Kawahara , Hiroshi Takatori
- 申请人地址: JP Saitama
- 专利权人: Enplas Corporation
- 当前专利权人: Enplas Corporation
- 当前专利权人地址: JP Saitama
- 代理机构: Washida & Associates
- 优先权: JP2010-076845 20100330; JP2010-145485 20100625
- 主分类号: F21V5/00
- IPC分类号: F21V5/00 ; F21V3/00
摘要:
Disclosed is a light emitting device to reduce the number of components and elements of a light emitting device and a lighting device having the light emitting device, and simplify and miniaturize the structures of these devices. With this light flux controlling member (4), a total reflecting surface (12) functions like a reflecting member, light from a light emitting element (LED, for example) (3) that is incident from an input surface (13) and that arrives at the total reflecting surface (12) is total-reflected by the total reflecting surface (12) toward the output surface (11) side (including a first output surface (11a) and second output surface (11b)), and the illuminating light from the second output surface (11b) is superimposed upon the illuminating light from the first output surface (11a), so that the light from the light emitting element (LED, for example) (3) is used efficiently and illuminates the illumination target surface (6) over a wide range.
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