Wavelength detection based on depth penetration for color image sensing
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United States of America Patent
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Jan 31, 2012
Grant Date -
Jul 30, 2009
app pub date -
Jun 5, 2007
filing date -
Jun 7, 2006
priority date (Note) -
Expired
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Abstract
The present invention is based on the principle of depth of penetration of electromagnetic rays. In the case of semiconductor mono-crystalline materials, such as silicon, the depth of penetration of a light ray is proportional to its wavelength. Using this phenomenon, the present invention consists of a pixel having three electrodes that can discriminate between the colors red, green, and blue, and thereby reconstruct a color image.
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