Title:
EXPOSURE CONTROLLER OF CAMERAS
Document Type and Number:
Japanese Patent JPS548523
Kind Code:
A
Abstract:
PURPOSE: To improve the transient response characteristics of the photometric circuit at the photographing by connecting a second photo detector which performs preliminary announcement display of exposure by measuring the subject light before photographing, in parallel with a first photo detector which performs exposure control by measuring the reflected light from the film plane.
Inventors:
ITOU FUMIO
TSUNEKAWA TOKUICHI
TAGUCHI TETSUYA
HARIGAYA ISAO
TSUNEKAWA TOKUICHI
TAGUCHI TETSUYA
HARIGAYA ISAO
Application Number:
JP7351277A
Publication Date:
January 22, 1979
Filing Date:
June 21, 1977
Export Citation:
Assignee:
CANON KK
International Classes:
G03B7/081; G03B7/00; G03B7/08; G03B7/083; G03B7/099; G03B9/36; G03B9/40; G03B9/62; (IPC1-7): G03B7/00; G03B7/08; G03B9/36; G03B9/62