Patent ID: 6498903
Filing Date: 2002-12-24
Classification: G02B,G03B

Abstract:
A zoom finder device for changing finder magnification of a finder optical system in cooperation with zooming of a taking lens comprising:a driving gear rotating in cooperation with zooming of said taking lens; a cam cylinder formed coaxial with said driving gear, said cam cylinder, being disposed in a direction parallel to an optical axis of said finder optical system, and movable in said parallel direction; a zoom lens system moving along said optical axis in accordance with a rotational amount of said cam cylinder, said zoom lens system comprising a part of said finder optical system; a transmission mechanism for transmitting rotation of said driving gear to said cam cylinder, said transmission mechanism permitting said cam cylinder to move to said parallel direction against said driving gear; and an adjustment member for adjusting a position of said cam cylinder in said parallel direction, so as to control visibility of said finder optical system.