Electronic devices having ambient light sensors with light collimators
First Claim
1. An electronic device, comprising:
- a display;
a color ambient light sensor; and
control circuitry configured to adjust the display based on ambient light color and ambient light intensity information from the color ambient light sensor, wherein the color ambient light sensor comprises;
a light detector integrated circuit having a plurality of photodetectors;
a light diffuser; and
a light collimator interposed between the light diffuser and the light detector, wherein the light collimator includes first and second light-collimating layers separated by an air gap.
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Accused Products
Abstract
An electronic device may be provided with a display. The display may have an array of pixels that form an active area and may have an inactive area that runs along an edge of the active area. An opaque layer may be formed on an inner surface of a display cover layer in the inactive area of the display or may be formed on another transparent layer in the electronic device. An ambient light sensor window may be formed from the opening and may be aligned with color ambient light sensor. The ambient light sensor may have an integrated circuit with photodetectors. Ambient light passing through the ambient light sensor window may be diffused by a light diffuser having one or more light-diffusing layers. Diffused ambient light may be collimated using a light collimator having one or more light-collimating layers such as layers with inwardly facing protrusions.
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Citations
21 Claims
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1. An electronic device, comprising:
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a display; a color ambient light sensor; and control circuitry configured to adjust the display based on ambient light color and ambient light intensity information from the color ambient light sensor, wherein the color ambient light sensor comprises; a light detector integrated circuit having a plurality of photodetectors; a light diffuser; and a light collimator interposed between the light diffuser and the light detector, wherein the light collimator includes first and second light-collimating layers separated by an air gap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An electronic device, comprising:
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a housing; a display coupled to the housing, wherein the display has an ambient light sensor window; and an ambient light sensor in alignment with the ambient light sensor window, wherein the ambient light sensor comprises; a light diffuser having at least one light-diffusing layer configured to diffuse ambient light passing through the ambient light sensor window as the ambient light passes through the light-diffusing layer; a light collimator having at least one light-collimating layer configured to collimate the diffused ambient light; and a photodetector configured to receive the collimated diffused ambient light. - View Dependent Claims (13, 14, 15, 16, 19, 20, 21)
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17. An ambient light sensor, comprising:
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a light-diffusing layer configured to diffuse ambient light; a light collimator configured to collimate the diffused ambient light wherein the light collimator is a coating on the light-diffusing layer; and a photodetector configured to receive the collimated diffused ambient light. - View Dependent Claims (18)
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Specification