Rotary shutter device

Details Rotary shutter device Rotary shutter device

Filed on

1985-05-29

Date issued

1986-02-18

Examiner

Rubinson, Gene Z.

Patent Class

Facsimile and static presentation processing

SubClass

Facsimile

SubSubClass

Recording apparatus

Other Related Categories

358209, H04N 530

Type

Patent

Status

active

Patent number

045716293

Description

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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