Finder unit

Details Finder unit Finder unit

1997-12-16

1999-07-13

Perkey, W. B.

Photography

Having variable focal length of camera objective

Having focus operation

396 84, G03B 1310

Patent

active

059239077

ABSTRACT:
In a finder unit of the present invention, a cam plate for changing the magnification of a finder optical system is arciform and is, when disposed on a lens barrel on a camera, movable along the cylindrical lens barrel's outer periphery. Consequently, the finder unit can easily be incorporated into the camera, and contributes to reducing the size of the camera.

REFERENCES:
patent: 4944030 (1990-07-01), Haraguchi et al.
patent: 5083146 (1992-01-01), Ueda
patent: 5321454 (1994-06-01), Mogiyama
patent: 5778262 (1998-07-01), Kobayashi et al.

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