LIGHTING SOURCE USING SOLID STATE EMITTER AND PHOSPHOR MATERIALS
First Claim
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1. A light emitting apparatus comprising:
- a light source for emitting a first light in a forward direction;
a wavelength-converting layer spaced apart from the light source and disposed in a path of the first light, the wavelength-converting layer configured to absorb at least a portion of the first light and emit a second light; and
a reflective layer configured to be reflective of at least the second light, wherein the wavelength-converting layer is disposed between the reflective layer and the light source.
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Abstract
A light emitting apparatus has a light source for emitting a first light in a forward direction. A wavelength-converting layer is spaced apart from the light source and disposed in a path of the first light. The wavelength-converting layer is configured to absorb at least a portion of the first light and emit a second light. A reflective layer is configured to be reflective of at least the second light, and the wavelength-converting layer is disposed between the reflective layer and the light source.
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Citations
26 Claims
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1. A light emitting apparatus comprising:
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a light source for emitting a first light in a forward direction; a wavelength-converting layer spaced apart from the light source and disposed in a path of the first light, the wavelength-converting layer configured to absorb at least a portion of the first light and emit a second light; and a reflective layer configured to be reflective of at least the second light, wherein the wavelength-converting layer is disposed between the reflective layer and the light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A light emitting apparatus, comprising:
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a light-emitting diode emitting short-wavelength light; a phosphor layer longitudinally spaced apart from the light-emitting diode, the phosphor layer absorbing short-wavelength light and emitting wavelength-converted light; and a reflector circumferentially surrounding the phosphor layer, wherein the wavelength-converted light emitted from the phosphor layer either exits the apparatus directly or exits the apparatus after a reflection off the reflector. - View Dependent Claims (17, 18, 19, 20)
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21. A light emitting apparatus, comprising:
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a light source for emitting a first light having a first wavelength; a phosphor layer longitudinally spaced apart from the light-emitting diode, the phosphor layer absorbing at least a portion of the first light and emitting a second light having a second wavelength different from the first wavelength; an optic device disposed between the light source at the phosphor layer; and a reflector adjacent opposite side faces of the optic device, wherein the optic device and the reflector each have an elongated width in comparison with their respective heights. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification