发明名称 |
APPARATUS, METHOD TO ENHANCE COLOR CONTRAST IN PHOSPHOR-BASED SOLID STATE LIGHTS |
摘要 |
The efficiency and color contrast of a lighting device may be improved by using wavelength shifting material, such as a phosphor, to absorb less desired wavelengths and transmit more desired wavelengths. A double-notch reflective filter may pass desired wavelengths such as red and green, while returning or reflecting less desired wavelengths (blue and yellow) away from an optical exit back toward wavelength shifting material and re-emitted as light of more desirable wavelengths.
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申请公布号 |
US2013062637(A1) |
申请公布日期 |
2013.03.14 |
申请号 |
US201213619085 |
申请日期 |
2012.09.14 |
申请人 |
REED WILLIAM G.;RENN JOHN O.;EXPRESS IMAGING SYSTEMS, LLC |
发明人 |
REED WILLIAM G.;RENN JOHN O. |
分类号 |
H01L33/50;H01L33/08 |
主分类号 |
H01L33/50 |
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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