Electronic camera

Details Electronic camera Electronic camera

1983-12-20

1986-05-13

Rubinson, Gene Z.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358225, H01N 314

Patent

active

045890234

ABSTRACT:
An electronic camera having both bright viewfinder image and a minimal effect of dark current on the image output signal. A quick-return mirror, normally positioned in the path of the flux of light from the object image, guides the flux of light into the optical viewfinder system. The quick-return mirror is retractable to allow the flux of light to fall onto an image pickup device. A vertical synchronizing signal generator issues a signal for discharging electric charges stored in the image pickup device after the release switch has been turned on and before the quick-return mirror begins its movement out of the light flux path and issues a signal for reading out electric charges which have been stored in the image pickup device while the shutter is open after an exposure operation has been completed. The frequency of scanning for discharging the electric charges is higher than the frequency for scanning for reading out the electric charges subsequent to the photographing operation.

REFERENCES:
patent: 4366501 (1982-12-01), Tsunekawa et al.
patent: 4472744 (1984-09-01), Inoue et al.

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