发明名称 Spectral light distribution for a light emitting device, and illumination apparatus and luminaire using same
摘要 A light emitting device (10) includes a first luminous body (4) having a first light source and a long wavelength cut-off filter; and a second luminous body (5) generating light of different color from that of the first luminous body, and having a second light source and a short wavelength cut-off filter. The first and the second light source emit light in a first wavelength range and a second wavelength range extending to a longer wavelength side than the first wavelength range while overlapping with the first wavelength range, respectively. The long and the short wavelength cut-off filter cut off light having a wavelength longer than a first set wavelength and shorter longer than a second set wavelength, respectively. Thus, light emitted from the first luminous body and light emitted from the second luminous body are mixed together, such that light in between the first set wavelength and the second set wavelength is reduced.
申请公布号 EP2639830(A2) 申请公布日期 2013.09.18
申请号 EP20130001198 申请日期 2013.03.11
申请人 PANASONIC CORPORATION 发明人 TAKEI, NAOKO
分类号 H01L25/075;F21K99/00;F21S8/02;F21V3/04;F21Y105/00;F21Y113/00 主分类号 H01L25/075
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