LED devices for offset wide beam generation
First Claim
1. A light source comprising:
- a light emitting diode; and
an optic that is disposed adjacent the light emitting diode and that comprises;
a first side oriented to receive light produced by the light emitting diode;
a second side that opposes the first side and that is oriented to emit light received by the optic via the first side; and
a reflector disposed between the second side and the light emitting diode so as to reflect light produced by the light emitting diode, the reflector having a curved shape and extending in an azimuthal angle of approximately 180 degrees about the light emitting diode,wherein the second side comprises;
a base region that is substantially flat and that meets a bulbous region to form a corner between the bulbous region and the base region that peripherally circumscribes the bulbous region, wherein all of the bulbous region is rotationally symmetric and free from abrupt changes in form.
5 Assignments
0 Petitions
Accused Products
Abstract
A light source is combined with an optic and a reflector. Light incident onto to the reflector is reflected with a single reflection. The reflector occupies a portion of a solid angle around the light source to the exclusion of the optic at least with respect to any optical function. The reflector directly receives a second portion of light. The optic occupies substantially all of the remaining portion of the predetermined solid angle to directly receive a first portion of light from the light source. A reflected beam from the reflector is reflected into a predetermined reflection pattern. The inner and/or outer surface of the optic is shaped to refract or direct light which is directly transmitted into the optic from the light source from a first portion of light and/or reflected into the optic from the reflector from the reflected beam into a predetermined beam.
164 Citations
19 Claims
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1. A light source comprising:
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a light emitting diode; and an optic that is disposed adjacent the light emitting diode and that comprises; a first side oriented to receive light produced by the light emitting diode; a second side that opposes the first side and that is oriented to emit light received by the optic via the first side; and a reflector disposed between the second side and the light emitting diode so as to reflect light produced by the light emitting diode, the reflector having a curved shape and extending in an azimuthal angle of approximately 180 degrees about the light emitting diode, wherein the second side comprises; a base region that is substantially flat and that meets a bulbous region to form a corner between the bulbous region and the base region that peripherally circumscribes the bulbous region, wherein all of the bulbous region is rotationally symmetric and free from abrupt changes in form. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A light source comprising:
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a light emitting diode; and an optic that is disposed adjacent the light emitting diode and that comprises; a first side positioned to receive light produced by the light emitting diode; a second side that is disposed opposite the first side and that is positioned to emit light produced by the light emitting diode; and a reflector disposed between the second side and the light emitting diode, the reflector having a curved shape and extending in an azimuthal angle greater than 165 degrees and less than 270 degrees about the light emitting diode, wherein the second side of the optic comprises; a base region; a bulbous region that rises above the base region and is rotationally symmetric; and a corner formed between the base region and the bulbous region, wherein the bulbous region is circumscribed by the corner and all of the bulbous region is free from abrupt changes in form, wherein an end of the reflector is disposed in a notch on the first side of the optic and in the bulbous region that rises above the base region, wherein the notch terminates before reaching the second side of the optic. - View Dependent Claims (9, 10, 11, 12)
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13. A light source comprising:
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a light emitting diode; and an optic that is positioned to manage light emitted by the light emitting diode and that comprises; a first side that is oriented towards the light emitting diode; a second side that opposes the first side and that comprises; a corner that extends peripherally with respect to the light emitting diode; and a surface region that is circumscribed by the corner, wherein all of the surface region that is circumscribed by the corner is smooth and free from abrupt changes in form; and a reflector disposed between the second side and the light emitting diode, the reflector having a curved shape and extending in an azimuthal angle greater than 165 degrees and less than 270 degrees about the light emitting diode. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification