Patent ID: 7351945

Claim:
A method of forming an imager array containing photoreceptors and passive elements for directing light to said photoreceptors, said method comprising: determining using a model of an array of photoreceptors and an array of associated passive elements, an amount of an intentional shift between said passive elements of the array and areas of maximum sensitivity of the respective photoreceptors, such that incoming light to each of said photoreceptors is directed by said passive elements to said areas of maximum sensitivity of the photoreceptors, wherein said act of using a model includes modeling a photoreceptor and associated passive element of said imager array according to: S = D ⁢ ⁢ tan ⁢ { sin - 1 ⁡ [ sin ⁡ ( θ ) n ] } = D ⁢ ⁢ tan ⁢ { sin - 1 ⁡ [ sin ⁡ ( Mr R ) n ] } where θ represents an external beam entry angle, and n is a refractive index of a medium between a microlens and a photosensitive part of the photoreceptor, M is a maximum beam angle of non-telecentricity, D is a physical distance between a plane of the microlens and a plane of the photoreceptor's area of maximum photosensitivity, R is a maximum image point radius, and r is a image point radius under consideration for calculating S, analyzing crosstalk which includes separately analyzing spectral crosstalk, optical crosstalk, and electrical crosstalk, and forming an array of photoreceptors in an array of pixels and an array of associated passive elements having an intentional shift using results from said acts of determining and analyzing.