Illumination – Light source and modifier – Including selected wavelength modifier
Reexamination Certificate
2005-12-27
2005-12-27
Ward, John Anthony (Department: 2875)
Illumination
Light source and modifier
Including selected wavelength modifier
C362S235000, C313S110000, C257S010000, C385S901000
Reexamination Certificate
active
06979105
ABSTRACT:
A light fixture having a light reflector, a light source mounted on the reflector, and a photonic filter mounted on the reflector in a position such that light emitting directly from the light source and light from the lamp reflecting from the light source impinges on a surface of the filter, the filter configured to transmit therethrough light of a selected range of wavelengths and to attenuate light of wavelengths outside of the selected range. The light source may be a fluorescent lamp, an incandescent lamp, a HID lamp, or an LED, and may be one of a plurality of light sources. The filter may be formed in a semiconductor substrate and may have an LED light source formed in the same substrate and positioned such that the light produced propagates in a direction away from the filter and toward the reflector, where it is reflected back to the filter.
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