Title:
OPTICAL SYSTEM OF VARIABLE MAGNIFICATION FINDER
Document Type and Number:
Japanese Patent JPS52137331
Kind Code:
A
Abstract:
PURPOSE: To change the magnification with no change of visibility by shifting a finder optical system along its optical axis, and rendering a portion of the optical system to go forward and backward along the optical axis.
Inventors:
YAMAZAKI YASUO
KAWAGUCHI TAIZOU
KIMURA KAZUO
KAWAGUCHI TAIZOU
KIMURA KAZUO
Application Number:
JP5325176A
Publication Date:
November 16, 1977
Filing Date:
May 12, 1976
Export Citation:
Assignee:
MINOLTA CAMERA KK
International Classes:
G03B13/12; G02B25/00; G03B19/07; (IPC1-7): G02B15/00; G03B13/12
Previous Patent: JPS52137330
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