Patent ID: 8172408

Claim:
A lens position adjusting mechanism comprising: a lens; a lens attachment frame that includes a lens holding portion for holding a rim of the lens; and a holding case that sandwiches the lens attachment frame movably in a plane direction perpendicular to an optical axis of the lens, wherein the lens attachment frame includes a shaft portion on a periphery of the lens holding portion, the shaft portion functioning as a fulcrum at a time when the lens attachment frame moves in the plane direction, and the holding case includes a shaft supporting portion for supporting the shaft portion of the lens attachment frame movably in one direction and a frame guide groove for sandwiching the lens attachment frame, and either the lens attachment frame or the holding case has an elastic portion, and the lens attachment frame is biased in the direction of the holding case by the elastic portion in a state in which the lens attachment frame is sandwiched in the frame guide groove of the holding case.