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公开(公告)号:US20170048941A1
公开(公告)日:2017-02-16
申请号:US15259481
申请日:2016-09-08
发明人: Hiroyasu KONDO , Masahiko YAMAKAWA , Yasuhiro SHIRAKAWA , Ryoji TSUDA , Atsuji NAKAGAWA , Toshitaka FUJII , Tomohiko INOUE
IPC分类号: H05B33/08 , F21K9/235 , F21K9/238 , C09K11/66 , F21V3/02 , H01L33/50 , C09K11/77 , C09K11/08 , F21V23/00 , F21K9/232
CPC分类号: H05B33/0827 , C09K11/0883 , C09K11/665 , C09K11/7734 , C09K11/7739 , C09K11/778 , C09K11/7787 , C09K11/7789 , F21K9/232 , F21K9/235 , F21K9/238 , F21V3/02 , F21V23/005 , F21Y2103/10 , F21Y2115/10 , H01L25/0753 , H01L25/167 , H01L33/504 , H01L2924/0002 , H05B33/0821 , H05B33/0845 , H05B33/0857 , Y02B20/181 , Y02B20/341 , H01L2924/00
摘要: A light emitting device includes: a first white light source which includes N pieces of first white light emitting diodes and emits a first white light; and a second white light source which includes M pieces of second white light emitting diodes and a first resistance element electrically connected in series to the second white light emitting diodes and having a first resistance value, is electrically connected in parallel to the first white light source, and emits a second white light, the light emitting device emitting a mixed white light of the first white light and the second white light. The drive voltage of the first white light source is higher than a drive voltage of the second white light source, and a color temperature of the mixed white light is higher as a total luminous flux of the mixed white light is higher.
摘要翻译: 发光装置包括:第一白光源,其包括N个第一白色发光二极管并发射第一白光; 并且第二白光源包括M个第二白色发光二极管和与第二白色发光二极管串联电连接并具有第一电阻值的第一电阻元件与第一白色光源并联电连接 并且发射第二白光,所述发光器件发射第一白光和第二白光的混合白光。 第一白色光源的驱动电压高于第二白色光源的驱动电压,并且混合白色光的色温随着混合白色光的总光通量而高。