Patent Number: 6,169,859

Title: Viewfinder

Abstract: A diopter adjustment lens is provided with a follower pin on the edge thereof, and is arranged inside a cylinder provided with a guide groove engaging with the follower pin. A diopter adjustment dial, which is integrated with a diopter adjustment ring, is rotatably fitted on the cylinder. The diopter adjustment ring is provided with a cam face, and the follower pin of the diopter adjustment lens is brought into contact with the cam face through the guide groove in the cylinder. Rotating the diopter adjustment dial moves the diopter adjustment lens forward and backward thereby adjusting the diopter of the finder unit.

Inventors: Omiya; Akio (Omiya, JP)

Assignee: Fuji Photo Optical Co., Ltd.

International Classification: G03B 13/06 (20060101); G03B 013/02 (); G03B 013/06 ()

Expiration Date: 01/02/2018