Patent ID: 7559708

Claim:
An optical unit for projecting an image of a subject on an imaging device, the imaging device comprising an imaging surface and converts an image formed on the imaging surface into an electrical signal, the optical unit comprising: a housing having a mounting surface for mounting an imaging device thereon, the mounting surface defines an opening that extends over an area having a rectangular shape; a movable optical system which projects the image of the subject onto the imaging device; an optical system driving device for driving the optical system; a light quantity control member for controlling a light quantity projecting on the imaging device; and a light quantity control driving device for driving the light quantity control member, wherein the optical system driving device and the light quantity control driving device are arranged outside a common side of the rectangular shape of the area, relative to an optical axis of the optical system, so as to overlap each other in a direction perpendicular to the optical axis of the optical system.