Optical sensors that reduce specular reflections

An optical sensing and photodetector technology, applied in the field of optical sensors, can solve the problem that optical sensors are easily affected by mirror reflection, and achieve the effects of simple cost-effectiveness, reduced sensitivity and low cost
CN102395859AInactive Publication Date: 2012-03-28INTERSIL INC
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
INTERSIL INC
Publication Date
2012-03-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

An optical sensor device, according to an embodiment of the present invention, includes a light source and a light detector. The light source includes one or more light emitting elements, and the light detector includes one or more light detecting elements. A first opaque light barrier portion, between the light source and the light detector, is configured to block light from being transmitted directly from the light source to the light detector. A second opaque light barrier portion, extending from the first opaque light barrier portion in a direction towards the light source, is configured to reduce an amount of specular reflections that would occur if a light transmissive cover plate were placed over the optical sensor device.; A third opaque light barrier portion, extending from the first light barrier portion in a direction towards to the light detector, is configured to reduce an amount of specular reflections that would be detected by the light detector, if a light transmissive cover plate were placed over the optical sensor device.
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Description

[0001] Priority statement

[0002] This application claims the priority of the following U.S. patent applications:

[0003] ●U.S. Provisional Patent Application No. 61 / 169,236, entitled "OPTICAL SENSORS AND METHODS FOR PROVIDING OPTICAL SENSORS" (OPTICAL SENSORS AND METHODS FOR PROVIDING OPTICAL SENSORS), granted to Lynn K. Wiese et al., submission date: April 2009 14th (the agency file number: ELAN-01227US0);

[0004] ●U.S. Provisional Patent Application No. 61 / 218,867, entitled "OPTICAL SENSORS THAT REDUCE SPECULAR REFLECTIONS", granted to Lynn K. Wiese et al., filing date: June 19, 2009 (Agency file No.: ELAN-01247US0);

[0005] ●US Patent Application No. 12 / 499,693, entitled "OPTICAL SENSORS AND METHODS FOR PROVIDING OPTICAL SENSORS" (OPTICAL SENSORS AND METHODS FOR PROVIDING OPTICAL SENSORS), granted to Lynn K. Wiese et al., submission date: July 8, 2009 Date (the agency file number: ELAN-01227US1);

[0006] ●US Patent Application No. 12 / 499,723, entitled "OPTICAL SENSORS THAT RE...

Claims

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