Patent ID: 6930705

Claim:
An image search device comprising: a first image pickup optical system; a first image pickup device which picks up an image of a predetermined visual field formed through said first image pickup optical system to output a first image signal representing the picked up image; a second image pickup optical system including at least one lens which forms an image of at least a part of the predetermined visual field; a second image pickup device which picks up the image formed through said second image pickup optical system to output a second image signal representing the picked up image; a shift unit which shifts an area to be picked up by said second image pickup device through said second image pickup optical system within the predetermined visual field by shifting an optical axis of the lens in said second image pickup optical system relative to said second image pickup device, said shift unit comprising an optical axis shifting member which shifts the optical axis by moving in a plane perpendicular to the optical axis, and a moving unit which moves the optical axis shifting member, said optical axis shifting member comprising an image erecting optical system comprising at least four reflection surfaces; an image synthesizing unit which adds, to the first image signal, an image signal representing a mark showing the area corresponding to the image picked up by said second image pickup device based on an amount of the relative shift of said optical axis with respect to said second image pickup device; a first display unit which displays the image represented by said first image signal processed by said image synthesizing unit; and a second display unit which displays the image represented by said second image signal.