Color filter patterns for image sensors
First Claim
1. A color image sensor comprising:
- at least a first color filter for sensing a luminance from an entire spectrum relevant to said color image sensor.
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Abstract
Color filter patterns are invented for coating an array of imaging sensing elements so to obtain color images. Each of the color filter patterns consists of a luminance color Y and two other complementary or non-overlapping colors tessellated in a Bayer pattern, hexagonal pattern, YUV422 pattern, or other ordered tessellation. In two preferred embodiments of the invention, the color filter pattern differs from a conventional Bayer Pattern or a conventional hexagonal RGB pattern only in that the G color is replaced by a luminance color Y. The color filter for luminance Y can be realized by a transparent coating or no coating at all. In addition, the effective sensing areas of different colors are so chosen that desired signal-to-noise ratios are obtained by adjusting the color sensing areas and/or the sizes/curvatures of the micro lenses for the color pixels.
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Citations
30 Claims
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1. A color image sensor comprising:
at least a first color filter for sensing a luminance from an entire spectrum relevant to said color image sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A color image sensor comprising:
a plurality of color filters of different colors wherein a tessellation of said color filters of said different colors is configured for achieving substantially a desired signal-to-noise ratio for each of said colors.
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29. A method for sensing a color image comprising:
- employing at least a first color filter for sensing a luminance from an entire spectrum relevant to said color image.
- View Dependent Claims (30)
Specification