Illumination Systems Utilizing Wavelength Conversion Materials
First Claim
Patent Images
1. An illumination system, comprising:
- a wavelength conversion material; and
an omni-directional reflector.
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Abstract
A wavelength conversion material with an omni-directional reflector is utilized to enhance the optical efficiency of an illumination system. Light guides with restricted output apertures, micro-element plates and optical elements are utilized to enhance the brightness of delivered light through light recycling. In addition, micro-element plates may be used to provide control over the spatial distribution of light in terms of intensity and angle. Efficient and compact illumination systems are also disclosed.
112 Citations
20 Claims
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1. An illumination system, comprising:
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a wavelength conversion material; and an omni-directional reflector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system, comprising:
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a tapered hollow light guide having an interior cavity, a light entrance aperture and a light exit aperture, the light entrance aperture having less area that the light exit aperture; wavelength conversion material located within the interior cavity of the hollow light guide; a reflective layer formed along the walls of the interior cavity; and a low-refractive index layer between the wavelength conversion material and the reflective layer. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification