Patent ID: 7427742

Claim:
An imaging system, comprising: a two-dimensional array of photosensors, each photosensor having a center point; a non-telecentric lens positioned over said two-dimensional array of photosensors; and a two-dimensional array of microlenses positioned over said two-dimensional array of photosensors, each microlens being associated with a corresponding photosensor, each microlens having a center point; said microlens being positioned over said corresponding photosensor such that a center point of a microlens is offset from a center point of a corresponding photosensor, each offset having an amount and a direction such that said amounts and directions spatially vary across said two-dimensional array of photosensors, said spatial variation being determined based on a variation of a chief ray angle of said non-telecentric lens across a focal surface of the non-telecentric lens and optical properties of said two-dimensional array of photosensors and said microlenses such that light sensitivity of each pixel is maximized; and a layer of transmissive apertures positioned over said two-dimensional array of photosensors, each aperture being associated with a corresponding photosensor and having a center point, wherein said layer of transmissive apertures is a metal layer of apertures such that the metal layer blocks stray radiation and the apertures allow radiation to pass therethrough.