Imaging system having extended useful latitude
First Claim
1. An image sensor comprising an array of photosensors and an array of micro-lenses with each micro-lens confronting more than one of the photosensors and concentrating light striking each micro-lens onto less than all of the confronted photosensors, so that selected photosensors receive a greater exposure than other photosensors.
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Accused Products
Abstract
The invention provides an image sensor that has an array of photosensors and an array of micro-lenses with each micro-lens confronting more than one of the photosensors and concentrating light striking each micro-lens onto less than all of the confronted photosensors so that selected photosensors receive a greater exposure than other photosensors.
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Citations
17 Claims
- 1. An image sensor comprising an array of photosensors and an array of micro-lenses with each micro-lens confronting more than one of the photosensors and concentrating light striking each micro-lens onto less than all of the confronted photosensors, so that selected photosensors receive a greater exposure than other photosensors.
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8. An image capture system comprising:
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an image sensor comprising an array of photosensors and an array of micro-lenses with each micro-lens confronting more than one of the photosensors and concentrating light striking each micro-lens onto less than all of the confronted photosensors, so that selected photosensors receive a greater exposure than other photosensors;
a taking lens unit for focusing light from a scene onto the image sensing system;
an exposure control system controllably permitting the photosensors to receive light for a period of time; and
a processor extracting image information from the photosensors and forming an image based upon the extracted image information. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method for using an array of photosensors to capture an image of a scene comprising the steps of:
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focusing light from the scene at the array of photosensors;
concentrating light focused at groups of more than one of the photosensors onto less than all of the photosensors of each group, so that selected photosensors in each group receive a greater exposure than other photosensors in the group;
extracting image information from the photosensors; and
forming an image using the extracted image information. - View Dependent Claims (15, 16, 17)
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Specification