Invention Grant
US08174180B2 Light-emitting device having scattering reflector with preset square average inclination
有权
具有散射反射器的发光装置具有预设的平均平均倾斜度
- Patent Title: Light-emitting device having scattering reflector with preset square average inclination
- Patent Title (中): 具有散射反射器的发光装置具有预设的平均平均倾斜度
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Application No.: US13007089Application Date: 2011-01-14
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Publication No.: US08174180B2Publication Date: 2012-05-08
- Inventor: Tetsuo Inoue , Hajime Takeuchi , Yasumasa Ooya , Toshio Shimaoogi , Yasuhiro Shirakawa
- Applicant: Tetsuo Inoue , Hajime Takeuchi , Yasumasa Ooya , Toshio Shimaoogi , Yasuhiro Shirakawa
- Applicant Address: JP Tokyo JP Yokohama-shi
- Assignee: Kabushiki Kaisha Toshiba,Toshiba Materials Co., Ltd.
- Current Assignee: Kabushiki Kaisha Toshiba,Toshiba Materials Co., Ltd.
- Current Assignee Address: JP Tokyo JP Yokohama-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2008-185870 20080717
- Main IPC: H05B33/02
- IPC: H05B33/02
Abstract:
A light emitting device 1 includes a light emitting diode, a phosphor layer containing phosphors that emit a visible light by being excited by a light emitted from the light emitting diode, and a reflector disposed to surround the light emitting diode. A portion of 50% or more in an area ratio of a reflecting surface of the reflector is formed as a scattering surface with a mean square inclination (Δq) (0.1 mm) in a range of not less than 0.003 nor more than 0.03.
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