Title:
METHOD OF DETECTING FOCUS POSITION DEPENDING ON CHROMATIC ABERRATION OF LENS
Document Type and Number:
Japanese Patent JPS5414232
Kind Code:
A
Abstract:
PURPOSE: To detect the focus position easily and accurately and contribute to further automatization of camera by using the chromatic aberration of lens and utilizing the fact that the luminous flux passing a pinhole reaches its maximum at the focus position.
Inventors:
SHIMOYAMA KUNIO
Application Number:
JP8008077A
Publication Date:
February 02, 1979
Filing Date:
July 05, 1977
Export Citation:
Assignee:
OLYMPUS OPTICAL CO
International Classes:
G03B13/36; G02B7/28; G02B7/36; G03B3/00; (IPC1-7): G02B7/11; G03B3/00; H04N5/26