发明名称 |
Solid State Lighting Devices Including Light Mixtures |
摘要 |
A solid state lighting apparatus includes a plurality of light emitting diodes (LEDs) including at least a first LED and a second LED. Chromaticities of the first and second LEDs are selected so that a combined light generated by a mixture of light from the pair of LEDs has about a target chromaticity. The first LED may include a first LED chip that emits light in the blue portion of the visible spectrum and a phosphor that emits red light in response to blue light emitted by the first LED chip. The second LED emits light having a color point that is above the planckian locus of a 1931 CIE Chromaticity diagram, and in particular may have a yellow green, greenish yellow or green hue.
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申请公布号 |
US2010079059(A1) |
申请公布日期 |
2010.04.01 |
申请号 |
US20090491654 |
申请日期 |
2009.06.25 |
申请人 |
ROBERTS JOHN;NEGLEY GERALD H;VAN DE VEN ANTONY P;CHAKRABORTY ARPAN;KELLER BERND;LE TOQUIN RONAN P |
发明人 |
ROBERTS JOHN;NEGLEY GERALD H.;VAN DE VEN ANTONY P.;CHAKRABORTY ARPAN;KELLER BERND;LE TOQUIN RONAN P. |
分类号 |
H01J63/04 |
主分类号 |
H01J63/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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