Optical manifold for light-emitting diodes [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2008.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Additional Creators:
- United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- 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.
- Report Numbers:
- E 1.99:7,380,962
- Published through SciTech Connect.
Chaves, Julio; Falicoff, Waqidi; Minano, Juan; Benitez, Pablo; Parkyn, Jr., William; Alvarez, Roberto; Dross, Oliver.
Light Prescriptions Innovators, LLC, Altadena, CA (United States)
- Funding Information:
View MARC record | catkey: 24503581