Title:
EXTERNAL AND INTERNAL LIGHT RESPONSIVE PULSE COUNTING DIGITAL ELECTRIC SHUTTER
Document Type and Number:
Japanese Patent JPS54148526
Kind Code:
A
Inventors:
NOBUSAWA TSUKUMO
Application Number:
JP5652378A
Publication Date:
November 20, 1979
Filing Date:
May 15, 1978
Export Citation:
Assignee:
ASAHI OPTICAL CO LTD
International Classes:
G03B7/093; G03B7/10; (IPC1-7): G03B7/08; G03B7/10