PROXIMITY SENSOR DEVICE, ELECTRONIC APPARATUS AND METHOD OF SENSING OBJECT PROXIMITY
First Claim
Patent Images
1. A proximity sensor device, comprising:
- a light source configured to output light; and
a layer optically coupled to said light source to receive said light output by said light source and configured to transmit said light output by said light source in said layer, said layer comprising;
an output coupler configured to couple at least a portion of said light transmitted in said layer out of said layer.
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Abstract
A proximity sensor device, a portable electronic apparatus and a method of sensing object proximity are disclosed. The proximity sensor device comprises a light source and a layer optically coupled to the light source. Light output by the light source is transmitted in the layer. The layer comprises an output coupler configured to couple at least a portion of the light transmitted in the layer out of the layer.
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Citations
18 Claims
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1. A proximity sensor device, comprising:
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a light source configured to output light; and a layer optically coupled to said light source to receive said light output by said light source and configured to transmit said light output by said light source in said layer, said layer comprising; an output coupler configured to couple at least a portion of said light transmitted in said layer out of said layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A proximity sensor device, comprising:
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a layer configured to transmit light therein, wherein said layer comprises; a plurality of output couplers, wherein each output coupler of said plurality of output couplers is respectively configured to couple light out of said layer; and at least one input coupler, wherein each input coupler of said at least one input coupler is respectively configured to couple light into said layer; at least one light source optically coupled to said layer and configured to output light to said layer; and at least one electro-optical sensor optically coupled to said layer and configured to detect at least a portion of said light coupled into said layer by said at least one input coupler. - View Dependent Claims (12, 13)
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14. An electronic apparatus, comprising:
a proximity sensor device, said proximity sensor device comprising; a light source configured to output light; and a layer optically coupled to said light source to receive said light output by said light source and configured to transmit said light output by said light source in said layer, wherein said layer comprises an output coupler configured to couple at least a portion of said light transmitted in said layer out of said layer. - View Dependent Claims (15)
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16. A method of sensing proximity of an object, said method comprising:
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transmitting light in a layer; coupling at least a portion of said light out of said layer; detecting a reflected portion of said light coupled out of said layer; and determining whether said object is located in proximity to said layer based on said detected reflected portion. - View Dependent Claims (17, 18)
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Specification