HYBRID VERTICAL CAVITY OF MULTIPLE WAVELENGTH LEDS
First Claim
1. A solid state device suitable for use with light emitting diodes or semiconductor laser diodes, comprisinga hybrid vertical micro-cavity formed by a cascading of two sub-cavities to share a mirror within the solid state device,wherein the hybrid vertical cavity collimates the first accumulated light and the second accumulated light to increase an efficiency of total emitted light.
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Accused Products
Abstract
A solid state device (200) for a hybrid vertical cavity of multiple wavelength LEDs is provided. The solid state device can include a hybrid vertical cavity formed by a cascading of a first sub-cavity (210) and a second sub-cavity (220) to share a mirror (350) within the solid state device. The hybrid vertical cavity can collimate the first accumulated light (213) and the second accumulated light (223) to increase an efficiency of total emitted light. In one arrangement, the total emitted light can be directed to a phosphor to generate a white light.
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Citations
22 Claims
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1. A solid state device suitable for use with light emitting diodes or semiconductor laser diodes, comprising
a hybrid vertical micro-cavity formed by a cascading of two sub-cavities to share a mirror within the solid state device, wherein the hybrid vertical cavity collimates the first accumulated light and the second accumulated light to increase an efficiency of total emitted light.
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9. A solid state device to form a hybrid vertical cavity of multiple wavelength LEDS, the solid state device comprising:
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a substrate that is transparent to light; a first filter for the first LED to reflect a first light within a first vertical cavity, accumulate the first light within the first cavity, and emit the first light through the substrate; a first LED coupled to the substrate to emit the first light; a second filter for the second LED to reflect a second light within a second vertical cavity, accumulate the second light within the second cavity, and emit the second light outside of the second vertical cavity through the first LED, the first filter, and the substrate; a second LED layered on the second filter to emit the second light; and a mirror layered on the second LED to reflect the first light within the first cavity and to reflect the second light within the second cavity. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A solid state device to emit dual wavelength light within a hybrid vertical cavity, comprising
a first LED that emits a first light within a first vertical cavity which is reflected within the first vertical cavity and accumulated by a first filter that produces a first accumulated light, wherein the first vertical cavity is formed between a first filter and a mirror, and the first light passes through a second filter and a second LED inside the first vertical cavity; - and
a second LED that emits a second light within a second vertical cavity which is reflected within the second vertical cavity and accumulated by a second filter that produces a second accumulated light, wherein the second vertical cavity is formed between the second filter and the mirror, and the second accumulated light passes through the first LED and the first filter outside of the second vertical cavity. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification