发明名称 LED LIGHT BULB
摘要 In one embodiment, an LED light bulb includes an LED module, a base part on which the LED module is disposed, and a globe attached to the base part. The LED module includes an ultraviolet to violet light-emitting LED chip mounted on a substrate. A lighting circuit and a bayonet cap are provided at the base part. A phosphor screen emitting white light by absorbing the ultraviolet to violet light emitted from the LED chip is provided on an inner surface of the globe. The phosphor screen has a color in which a* is -10 or more and +10 or less, b* is 0 (zero) or more and +30 or less, and L* is +40 or more when a body color thereof is represented by an L*a*b* color system.
申请公布号 US2013169147(A1) 申请公布日期 2013.07.04
申请号 US201313774574 申请日期 2013.02.22
申请人 KABUSHIKI KAISHA TOSHIBA;TOSHIBA MATERIALS CO., LTD.;KABUSHIKI KAISHA TOSHIBA 发明人 OOYA YASUMASA;YAMAKAWA MASAHIKO;SHIRAKAWA YASUHIRO;NAKAGAWA KATSUTOSHI
分类号 H05B33/12 主分类号 H05B33/12
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