Illumination apparatus
First Claim
Patent Images
1. An illumination apparatus comprising:
- a substantially planar waveguide; and
embedded within the waveguide, (i) at least one light source, and (ii) at least one photoluminescent material for converting a wavelength of a portion of the light emitted by the at least one light source, unconverted light from the at least one light source mixing with light converted by the at least one photoluminescent material to produce substantially white light,wherein the waveguide (i) retains therein substantially all light emitted by the at least one embedded light source, and (ii) causes light to propagate and diffuse within the waveguide until light is caused to exit from an exit region of a surface thereof.
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Abstract
An illumination apparatus, comprising at least one light emitting source embedded in a waveguide material is disclosed. The waveguide material is capable of propagating light generated by light emitting source(s), such that at least a portion of the light is diffused within the waveguide material and exits through at least a portion of its surface.
281 Citations
22 Claims
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1. An illumination apparatus comprising:
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a substantially planar waveguide; and embedded within the waveguide, (i) at least one light source, and (ii) at least one photoluminescent material for converting a wavelength of a portion of the light emitted by the at least one light source, unconverted light from the at least one light source mixing with light converted by the at least one photoluminescent material to produce substantially white light, wherein the waveguide (i) retains therein substantially all light emitted by the at least one embedded light source, and (ii) causes light to propagate and diffuse within the waveguide until light is caused to exit from an exit region of a surface thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An illumination apparatus comprising:
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a substantially planar waveguide; and embedded within the waveguide, (i) at least one light source, and (ii) at least one photoluminescent material for converting a wavelength of a portion of the light emitted by the at least one light source, unconverted light from the at least one light source mixing with light converted by the at least one photoluminescent material to produce substantially white light, wherein the waveguide (i) has a planar top surface above the at least one embedded light source, (ii) retains therein substantially all light emitted by the at least one embedded light source, and (iii) causes light to propagate and diffuse within the waveguide until light is caused to exit from an exit region of a surface thereof. - View Dependent Claims (21, 22)
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Specification