Thin film wavelength converters and methods for making the same
First Claim
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1. A thin film wavelength converter, comprising:
- a substrate;
a first thin film layer, said first thin film layer comprising at least one first wavelength conversion material;
an electrically conductive layer; and
a second thin film layer deposited on said electrically conductive layer, said second thin film layer comprising at least one second wavelength conversion material;
wherein;
said first thin film layer is configured to convert incident primary light from a light source in a first wavelength range to secondary light in a second wavelength range; and
said second thin film layer is configured to convert at least one of said primary light and said secondary light to tertiary light in a third wavelength range, said second wavelength range being different from said third wavelength range; and
wherein the first thin film layer has a thickness ranging from about 10 nanometers (nm) to about 20 micrometers (μ
m).
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Abstract
Thin film wavelength converters and methods for making the same are disclosed. In some embodiments, the thin film converters include a first thin film layer of first wavelength conversion material, a conductive layer, and a second thin film layer of a second wavelength conversion material. In one embodiment, a photoresist mask is applied to the conductive layer to form a pattern of by which the second wavelength conversion material may be applied by electrophoretic deposition to the exposed regions of the surface of the conductive layer.
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Citations
8 Claims
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1. A thin film wavelength converter, comprising:
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a substrate; a first thin film layer, said first thin film layer comprising at least one first wavelength conversion material; an electrically conductive layer; and a second thin film layer deposited on said electrically conductive layer, said second thin film layer comprising at least one second wavelength conversion material; wherein; said first thin film layer is configured to convert incident primary light from a light source in a first wavelength range to secondary light in a second wavelength range; and said second thin film layer is configured to convert at least one of said primary light and said secondary light to tertiary light in a third wavelength range, said second wavelength range being different from said third wavelength range; and
wherein the first thin film layer has a thickness ranging from about 10 nanometers (nm) to about 20 micrometers (μ
m). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification