Title:
LENS SYSTEM
Document Type and Number:
Japanese Patent JPS52138922
Kind Code:
A
Abstract:
PURPOSE: To correct the aberration deterioration when a special lens attachment is installed by providing a lens system wherein at least one variable air gap is set at a different special gap other than that of the ordinary gap commonly used.
Inventors:
YASUKUNI MITSUO
Application Number:
JP5596476A
Publication Date:
November 19, 1977
Filing Date:
May 14, 1976
Export Citation:
Assignee:
MINOLTA CAMERA KK
International Classes:
G02B9/60; A42B1/06; G02B15/02; G02B15/167; G02B15/22; (IPC1-7): G02B15/02