LED based lamp and light emitting signage
First Claim
1. An apparatus, comprising:
- an enclosure with an opening that comprises a light emission plane through which light is emitted from the lamp;
a plurality of light emitting diodes located along at least one wall of the enclosure and operable to generate first light of a first wavelength range, whereinthe plurality of light emitting diodes are configured such that in operation their emission axis is oriented within a plane that is substantially parallel with or directed away from the light emission plane;
a first light reflective surface located on the base of the enclosure having a convex shape and configured such that the first light is reflected off the first light reflective surface to disperse the first light at a plurality of different angles relative to the light emission plane; and
one or more phosphor elements to absorb at least a portion of the first light emitted from the plurality of light emitting diodes to re-emit second light having a second wavelength range.
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Accused Products
Abstract
An LED based lamp comprises: an enclosure with an opening that comprises a light emission plane through which light is emitted from the lamp; a plurality of LEDs located along at least one wall of the enclosure and operable to generate light of a first wavelength range, wherein the LEDs are configured such that in operation their emission axis is oriented within a plane that is substantially parallel with or directed away from the light emission plane; and a first light reflective surface located on the base of the enclosure and configured such that in operation light is reflected through the light emission plane. A light emitting sign comprises the lamp of the invention with a light transmissive display surface overlying the light emission plane.
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Citations
26 Claims
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1. An apparatus, comprising:
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an enclosure with an opening that comprises a light emission plane through which light is emitted from the lamp; a plurality of light emitting diodes located along at least one wall of the enclosure and operable to generate first light of a first wavelength range, wherein the plurality of light emitting diodes are configured such that in operation their emission axis is oriented within a plane that is substantially parallel with or directed away from the light emission plane; a first light reflective surface located on the base of the enclosure having a convex shape and configured such that the first light is reflected off the first light reflective surface to disperse the first light at a plurality of different angles relative to the light emission plane; and one or more phosphor elements to absorb at least a portion of the first light emitted from the plurality of light emitting diodes to re-emit second light having a second wavelength range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification