Patent ID: 6960799

Claim:
An array of photodiodes made of regions of a second conductivity type formed in a semiconductive region of a first conductivity type, divided into three interleaved sub-arrays, each sub-array corresponding to a respective color of light, all photodiodes of a respective sub-array being coated with a same interference filter including at least one insulating layer of determined thickness coated with at least one conductive layer, a combined thickness of the at least one insulating layer and the at least one conductive layer being different for each sub-array, the determined thickness of said at least one insulating layer and said at least one conductive layer coating the respective sub-array determining the respective color of light that is interferentially filtered and provided to the respective sub-array, wherein the determined thickness of said at least one insulating layer is proportional to a wavelength of the color of light that is interferentially filtered, wherein said at least one conductive layer is electrically connected to the semiconductive region of the first conductivity type.