Patent ID: 7236304

Claim:
An imaging device operable to output an image of an object as an electrical image signal, comprising: a solid-state imaging sensor including pixels which are two dimensionally arranged on a first flat surface and each of which has a photo-electric conversion function; and a lens array including micro lenses two dimensionally arranged on a second flat surface separately provided so as to be parallel to the first flat surface, wherein the solid-state imaging sensor includes imaging areas of unit including a plurality of the pixels, each of the micro lenses forms an optical image of the object on a corresponding imaging area of unit, and, a following expression (1) is satisfied for a pixel, from among the pixels included in the imaging area of unit corresponding to each of the micro lenses, positioned farthest from an optical axis of a corresponding micro lens: arctan( L/f )≦θ (1), where θ is a maximum angle of an incident light capable of entering a pixel, f is a focal length of a micro lens, and L is a diameter of a circle circumscribing an imaging area of unit corresponding to one of the micro lenses.