High-power white LEDs
First Claim
1. A light emitting apparatus comprising:
- a first radiation source without a dome;
an optic device comprising a top surface distal the first radiation source, a bottom surface proximal the first radiation source, and a transparent sidewall connecting the top surface and the bottom surface and through which light radiation from the first radiation source is configured to escape from the transparent sidewall;
a base on which the first radiation source disposed;
a lens disposed on the optic device, and separated from the transparent sidewall of the optic device by an air space which is enclosed by the optic device, the lens, and the base; and
a down conversion material disposed between the lens and the radiation source;
wherein the light emitting apparatus has a maximum height of 2 mm-10 mm in a direction perpendicular to the top surface of the optic device.
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Abstract
A light emitting apparatus includes a first radiation source without a dome, a substantially transparent and light transmissive optic device, a lens, a down conversion material, and a heat sink. The optic device is devoid of scattering particles and phosphor, and includes a planar top surface distal the first radiation source, a bottom surface proximal the first radiation sources, and a transparent sidewall extending between the top surface and the bottom surface. The down conversion material includes a flat layer including phosphor that is disposed on the planar top surface of the optic device between the lens and the radiation source. The heat sink, upon which the radiation source is mounted, has a recess formed therein in which an air space is defined between a boundary of the recess and the optic device.
164 Citations
15 Claims
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1. A light emitting apparatus comprising:
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a first radiation source without a dome; an optic device comprising a top surface distal the first radiation source, a bottom surface proximal the first radiation source, and a transparent sidewall connecting the top surface and the bottom surface and through which light radiation from the first radiation source is configured to escape from the transparent sidewall; a base on which the first radiation source disposed; a lens disposed on the optic device, and separated from the transparent sidewall of the optic device by an air space which is enclosed by the optic device, the lens, and the base; and a down conversion material disposed between the lens and the radiation source; wherein the light emitting apparatus has a maximum height of 2 mm-10 mm in a direction perpendicular to the top surface of the optic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification