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US 7,746,397 B2Granted
Image device having color filter
AssigneeSamsung Electronics Co., Ltd.
InventorJung-Hyun Nam
Life of this patent
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Abstract
An image device comprises an image sensor including an array of photodiodes for converting an optical image into electrical signals, a color filter comprising an array of red, green and cyan filter elements disposed opposite the array of photodiodes, and a color processor for color processing the electrical signals.
Claims6
An image device comprising:
- an image sensor including an array of photodiodes for converting an optical image into electrical signals;
- a color filter comprising an array of red, green and cyan filter elements disposed opposite the array of photodiodes;
- and
- a color processor for color processing the electrical signals;
- wherein a saturation output of a red or green pixel is determined at a luminance of white light at which a saturated output of cyan pixel is sensed;
- and
- wherein the output of green pixel at the luminance of the white light where the saturated output of cyan pixel is sensed is about ⅔ the saturated output of cyan pixel when sensitivity to the blue filter element is about ½ of the sensitivity to the green filter element.
4 more elements
A method of color processing comprising:
- detecting a luminance of light filtered by a color filter comprising an array of red, green and cyan filter elements disposed in a Bayer pattern;
- outputting electrical signals based on the luminance of light;
- converting the electrical signals into digital signals via an analog-to-digital converter;
- and
- outputting the digital signals to a color processor for color processing;
- wherein a saturation output of a red or green pixel is determined at a luminance of white light at which a saturated output of cyan pixel is sensed;
- and
- wherein the output of green pixel at the luminance of the white light where the saturated output of cyan pixel is sensed is about ⅔ the saturated output of cyan pixel when sensitivity to the blue filter element is about ½ of the sensitivity to the green filter element.
5 more elements
Dependencies are inferred from the claim text.