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专利名称:LED light bulb
发明人:Takase, Motoki,Horiyama, Masako,Somei,
Junichi,Kozuma, Yuji
申请号:EP11150248.0申请日:20110105公开号:EP2343475A1公开日:20110713
专利附图:
摘要:In an LED light bulb (1), an LED module (7) and a lens (8) are disposed on a fixingstage (5) provided to a housing (3). The lens (8) may have a concave portion at its top end.The concave portion may form a reflecting surface which reflects part of outgoing light
from the LED module (7) to (i) first directions perpendicular to a front emission directionof the outgoing light or (ii) second directions leaning to a cap (4) beyond the firstdirections. Due to diffusion effect of an optical cover, part of the light reflected by thelens is emitted backward (toward the cap). This realizes an LED light bulb that distributeslight over an entire circumference and has high output as well as high light output ratio.
申请人:Sharp Kabushiki Kaisha
地址:22-22, Nagaike-cho Abeno-ku Osaka-shi, Osaka 545-8522 JP
国籍:JP
代理机构:Treeby, Philip David William
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