Light emitting diode sensor device including a contoured structure
First Claim
1. A light emitting diode (LED) sensor comprising:
- a first LED junction constructed to emit a radiation;
a second LED junction constructed to receive a radiation and provide a detectable electronic response responsive to the received radiation;
a package encapsulating the first LED junction and the second LED junction, wherein the package defines a contoured envelope having a contoured surface; and
a material located adjacently to the contoured surface, wherein the material is constructed to include a property, wherein the property includes reflecting or absorbing and re-emitting the emitted radiation to the second LED, wherein the property includes reflecting an external radiation and preventing the external radiation from being received by the second LED, wherein the material includes a layer that includes a palladium alloy constructed to change optical reflectivity due to hydrogen absorption, and wherein the LED sensor is configured to detect the presence of hydrogen.
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Accused Products
Abstract
A light emitting diode (LED) sensor including a first LED device disposed on a support and configured to emit a radiation, and a second LED device disposed on the support and configured to receive the emitted radiation. A structure is formed on the support, the first LED device, and the second LED device. The structure defines a contoured surface. A material is located adjacently to the contoured surface, wherein the material includes a property adapted to reflect the emitted radiation from the first LED to the second LED. The structure includes an ellipsoid and the contoured surface defines an ellipsoidal surface. First and second foci are defined by the ellipsoid, wherein emitted radiation from the first LED device converges at the first foci and the second foci and is reflected to the second LED device. The device is configured to determine a temperature or a chemical property of an analyte.
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Citations
19 Claims
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1. A light emitting diode (LED) sensor comprising:
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a first LED junction constructed to emit a radiation; a second LED junction constructed to receive a radiation and provide a detectable electronic response responsive to the received radiation; a package encapsulating the first LED junction and the second LED junction, wherein the package defines a contoured envelope having a contoured surface; and a material located adjacently to the contoured surface, wherein the material is constructed to include a property, wherein the property includes reflecting or absorbing and re-emitting the emitted radiation to the second LED, wherein the property includes reflecting an external radiation and preventing the external radiation from being received by the second LED, wherein the material includes a layer that includes a palladium alloy constructed to change optical reflectivity due to hydrogen absorption, and wherein the LED sensor is configured to detect the presence of hydrogen. - View Dependent Claims (2, 3)
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4. A light emitting diode (LED) sensor comprising:
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a support; a first LED device disposed on the support and including a single LED junction constructed to emit a radiation; a second LED device disposed on the support and including a single LED junction constructed to receive a radiation and provide a detectable electronic response responsive to the received radiation; a structure formed on the support, the first LED device, and the second LED device, wherein the structure defines a contoured surface; and a material located adjacently to the contoured surface, wherein the material is constructed to include a property, wherein the property includes reflecting the emitted radiation from the first LED to the second LED, wherein the property includes reflecting an external radiation and preventing at least a portion of the external radiation from being received by the second LED, wherein the material includes a layer constructed to change optical reflectivity due to absorption of an analyte, and wherein the LED sensor is configured to detect the presence of the analyte. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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12. A light emitting diode (LED) sensor comprising:
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a first LED junction constructed to emit a radiation; a second LED junction constructed to receive a radiation and provide a detectable electronic response responsive to the received radiation; a contoured surface; and a material located adjacently to the contoured surface, wherein the material is constructed to include a property, wherein the property includes reflecting or absorbing and re-emitting the emitted radiation to the second LED, wherein the material includes a color change dye fixed in a gel, and wherein the emitted radiation travels through the gel. - View Dependent Claims (13, 14)
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15. A light emitting diode (LED) sensor comprising:
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a first LED junction constructed to emit a radiation; a second LED junction constructed to receive a radiation and provide a detectable electronic response responsive to the received radiation; a contoured surface; and a material located adjacently to the contoured surface, wherein the material is constructed to include a property, wherein the property includes reflecting or absorbing and re-emitting the emitted radiation to the second LED, and wherein the material includes a chromic sensing material that modulates sensible characteristics of the radiation. - View Dependent Claims (16, 17, 18, 19)
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Specification