发明名称 LIGHT-EMITTING DEVICE
摘要 Disclosed is a light-emitting device that exhibits good color rendering and efficiently emits white light in the incandescent-bulb color range. The disclosed semiconductor light-emitting device (1) is provided with: a semiconductor light-emitting element (2) that emits blue light; a green phosphor (14) that absorbs the blue light and emits green light; and an orange phosphor (13) that absorbs the blue light and emits orange light. The emission spectrum of the orange phosphor (13) has a peak wavelength between 590 and 630 nm, and the full width at half maximum of said peak is at least 130 nm. The full width at half maximum of the emission spectrum of the orange phosphor (13) is greater than that of the green phosphor (14). The absorptance of the orange phosphor (13) peaks at a wavelength greater than or equal to 420 nm. Representing the maximum absorptance of the orange phosphor (13) by ABS(MAX) and the absorptance of the orange phosphor (13) at 530 nm by ABS(530), the orange phosphor (13) satisfies the relation ABS(530)/ABS(MAX) < 0.60.
申请公布号 WO2011105157(A1) 申请公布日期 2011.09.01
申请号 WO2011JP51600 申请日期 2011.01.27
申请人 SHARP KABUSHIKI KAISHA;INDEPENDENT ADMINISTRATIVE INSTITUTION, NATIONAL INSTITUTE FOR MATERIALS SCIENCE;YOSHIMURA, KENICHI;FUKUNAGA, HIROSHI;TAKAHASHI, KOHSEI;HIROSAKI, NAOTO 发明人 YOSHIMURA, KENICHI;FUKUNAGA, HIROSHI;TAKAHASHI, KOHSEI;HIROSAKI, NAOTO
分类号 H01L33/50;C09K11/64 主分类号 H01L33/50
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