MATRIX ARRANGEMENT OF PHOTODETECTOR
First Claim
Patent Images
1. An optical sensor, comprising:
- a light source;
a photodetector comprising a plurality of pixels which are used for both proximity light sensing and ambient light sensing; and
a controller configured to implement a proximity sensing phase where the pixels used for proximity light sensing are utilized to obtain an incident light reading when the light source is ON and then implement an ambient light sensing phase where the pixels used for ambient light sensing are utilized to obtain an incident light reading when the light source is OFF.
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Abstract
An optical sensor and optical system are disclosed. The optical sensor is disclosed to include a light source, a photodetector having a proximity sensing portion and an ambient light sensing portion, and a controller configured to implement a proximity sensing phase where the proximity sensing portion of the photodetector is utilized to obtain an incident light reading when the light source is ON and then implement an ambient light sensing phase where the ambient light sensing portion of the photodetector is utilized to obtain an incident light reading when the light source is OFF.
6 Citations
20 Claims
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1. An optical sensor, comprising:
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a light source; a photodetector comprising a plurality of pixels which are used for both proximity light sensing and ambient light sensing; and a controller configured to implement a proximity sensing phase where the pixels used for proximity light sensing are utilized to obtain an incident light reading when the light source is ON and then implement an ambient light sensing phase where the pixels used for ambient light sensing are utilized to obtain an incident light reading when the light source is OFF. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An optical system, comprising:
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at least one optical element that focuses light passing therethrough; and a photodetector comprising an array of photo-sensitive unit segments, wherein the photo-sensitive unit segments in the array belong to one or both of ambient light sensor unit segments and proximity sensor unit segments, and wherein an overall area of the array is larger than a focus area of the at least one optical element. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A sensor, comprising:
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a photodetector comprising an array of photo-sensitive unit segments, the array including a proximity sensing portion and an ambient light sensing portion; and a controller that implements two distinct sensing phases that include a proximity sensing phase and an ambient light sensing phase, wherein the proximity sensing portion of the photodetector is used during the proximity sensing phase, and wherein the ambient light sensing portion of the photodetector is used during the ambient light sensing phase. - View Dependent Claims (18, 19, 20)
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Specification