Rotary shutter device

Details Rotary shutter device Rotary shutter device

1985-05-29

1986-02-18

Rubinson, Gene Z.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358209, H04N 530

Patent

active

045716293

ABSTRACT:
A rotary shutter device for use in an electronic still camera or a VTR camera has an XY-addressable solid-state imaging device for converting an optical image read by successive horizontal scanning into a video signal, a shutter blade disposed in front of the solid-state imaging device and rotatable about its own axis, the shutter blade having at least one opening for transmitting light therethrough onto the photodetector surface of the solid-state imaging device, and an adjusting blade disposed adjacent to the shutter blade for varying the opening angle of the opening. The shutter and adjusting blades are rotatable together in a direction to successively expose the solid-state imaging device to incident light in the direction in which the solid-state imaging device is vertically scanned. The scanning of the solid-state imaging device for one field is completed between two successive exposures thereof through the opening in the shutter blade.

REFERENCES:
patent: 3303271 (1967-02-01), Hecker
patent: 4171529 (1979-10-01), Silberberg et al.
patent: 4301476 (1981-11-01), Keller et al.
patent: 4504866 (1985-03-01), Saito
patent: 4551763 (1985-11-01), Swinehart

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