发明申请
- 专利标题： Semiconductor Light Emitting Devices Having Selectable and/or Adjustable Color Points and Related Methods
- 专利标题（中）： 具有可选择和/或可调色点的半导体发光器件及相关方法
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申请号： US13546099申请日： 2012-07-11
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公开(公告)号： US20130002157A1公开(公告)日： 2013-01-03
- 发明人: Antony P. van de Ven , Jason Taylor , Paul Kenneth Pickard , Gauss Ho Ching So , Heidi Dieringer , Andrew Dummer
- 申请人： Antony P. van de Ven , Jason Taylor , Paul Kenneth Pickard , Gauss Ho Ching So , Heidi Dieringer , Andrew Dummer
- 主分类号： H05B37/02
- IPC分类号： H05B37/02
摘要：
Light emitting devices include a first string of LEDs that emit light having a color point that is within at least eight MacAdam ellipses of a first blue-shifted-yellow region on the 1931 CIE Chromaticity Diagram, a second string of LEDs that emit light having color point that is within at least eight MacAdam ellipses of a second blue-shifted-green region on the 1931 CIE Chromaticity Diagram, and a third light source that emits radiation having a dominant wavelength between 600 and 720 nm. A drive circuit supplies respective drive currents to the first string of LEDs, the second string of LEDs and the third light source, at least two of which are independently controllable.
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