发明名称 |
Optical devices |
摘要 |
An optical manifold for efficiently combining a plurality of blue LED outputs to illuminate a phosphor for a single, substantially homogeneous output, in a small, cost-effective package. Embodiments are disclosed that use a single or multiple LEDs and a remote phosphor, and an intermediate wavelength-selective filter arranged so that backscattered photoluminescence is recycled to boost the luminance and flux of the output aperture. A further aperture mask is used to boost phosphor luminance with only modest loss of luminosity. Alternative non-recycling embodiments provide blue and yellow light in collimated beams, either separately or combined into white.
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申请公布号 |
US7755838(B2) |
申请公布日期 |
2010.07.13 |
申请号 |
US20070890601 |
申请日期 |
2007.08.06 |
申请人 |
LIGHT PRESCRIPTIONS INNOVATORS, LLC |
发明人 |
CHAVES JULIO C.;FALICOFF WAQIDI;MINANO JUAN C.;BENITEZ PABLO;DROSS OLIVER;PARKYN, JR. WILLIAM A. |
分类号 |
G02B27/14;F21K7/00;F21S8/10;F21S8/12;F21V8/00;G02B3/00;G02B3/02;G02B3/08;G02B13/18;G02B17/06;G02B27/09;H01L33/58;H01L33/60 |
主分类号 |
G02B27/14 |
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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