发明名称 |
LED lamps with improved quality of light |
摘要 |
LED lamp systems having improved light quality are disclosed. The lamps emit more than 500 lm and more than 2% of the power in the spectral power distribution is emitted within a wavelength range from about 390 nm to about 430 nm. |
申请公布号 |
US8933644(B2) |
申请公布日期 |
2015.01.13 |
申请号 |
US201414310957 |
申请日期 |
2014.06.20 |
申请人 |
Soraa, Inc. |
发明人 |
David Aurelien J. F.;Trottier Troy A.;Krames Michael R. |
分类号 |
H05B37/02;H01L29/22;F21K99/00;F21V29/00;F21Y101/02;F21V3/00;F21Y113/00;H01L25/075;H01L33/50;H01L33/60;H01L33/20 |
主分类号 |
H05B37/02 |
代理机构 |
Kilpatrick Townsend & Stockton LLP |
代理人 |
Kilpatrick Townsend & Stockton LLP |
主权项 |
1. An illumination system comprising:
at least one LED device configured in a housing structure, wherein the at least one LED device comprises an n-type region, a light-emitting active region, and a p-type region; a wavelength conversion material optically coupled to the at least one LED device; and a power source electrically coupled to the at least one LED device; wherein, the at least one LED device is characterized by an external quantum efficiency greater than 45% measured at an ambient temperature of 25° C. and at a current density of 40 A/cm2; and light emitted by an interaction of electromagnetic radiation emitted from the at least one LED device and from the wavelength conversion material is characterized by a spectral power distribution (SPD) in which from 1% to 4% of the power in the SPD is emitted within a short-wavelength range from about 390 nm to about 430 nm. |
地址 |
Fremont CA US |