TEXTURED PATTERN SENSING AND DETECTION, AND USING A CHARGE-SCAVENGING PHOTODIODE ARRAY FOR THE SAME
First Claim
1. A system for imaging a textured surface comprising:
- a photoreceptor array including;
at least a first photoreceptor and a second photoreceptor, each configured to receive electromagnetic radiation reflected from the textured surface and to generate a signal corresponding thereto;
wherein the photoreceptor array is configured to detect an image of the textured surface based on the relative difference between the time of arrival of the signals from the first and second photoreceptors.
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Accused Products
Abstract
A system for imaging a textured surface comprising includes a photoreceptor array having: at least a first photoreceptor and a second photoreceptor, each configured to receive electromagnetic radiation reflected from the textured surface and to generate a signal corresponding thereto; wherein the photoreceptor array is configured to detect an image of the textured surface based on the relative difference between the time of arrival of the signals from the first and second photoreceptors. Methods for imaging a textured surface and fabricating a photoreceptor array structure for imaging a textured surface are also provided.
31 Citations
24 Claims
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1. A system for imaging a textured surface comprising:
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a photoreceptor array including; at least a first photoreceptor and a second photoreceptor, each configured to receive electromagnetic radiation reflected from the textured surface and to generate a signal corresponding thereto; wherein the photoreceptor array is configured to detect an image of the textured surface based on the relative difference between the time of arrival of the signals from the first and second photoreceptors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 18, 19, 20, 21, 22, 23, 24)
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12. A method for imaging a textured surface comprising:
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projecting a beam of electromagnetic radiation onto a textured surface; receiving, with a photoreceptor array, the electromagnetic radiation reflected from the textured surface, the photoreceptor array including at least a first photoreceptor and a second photoreceptor, each configured to receive electromagnetic radiation reflected from the textured surface and to generate a signal corresponding thereto; and detecting an image of the textured surface based on the relative difference between the time of arrival of the signals from the first and second photoreceptors. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification