Patent ID: 7633538

Claim:
an image sensor device formed in an integrated circuit (IC), the image sensor device comprising: an array of pixels, each pixel having a photodiode area; and a filter device configured to filter light such that filtered light impinges on the photodiode areas of the pixels, the filter device comprising a plurality of filter elements, each respective filter element filtering out light of wavelengths other than a respective wavelength or respective range of wavelengths such that light of the respective wavelength or respective range of wavelengths preferentially passes through the respective filter element and is incident upon the photodiode area of one of the pixels, and wherein the filter elements are arranged to provide color symmetry with respect to an optical center of the array; and wherein the filter elements include red, green and blue filter elements that are spatially arranged in a pattern that is generally symmetrical relative to the optical center of the array; and wherein the spatial arrangement of filter elements ensures that any color cross-talk that occurs in the image sensor device is symmetrical relative to the optical center of the array and produces a color error that is radial relative to the optical center.