
US Patent No: 4,571,629
Number of patents in Portfolio can not be more than 2000
Rotary shutter device
Stats
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Feb 18, 1986
Issued date -
May 29, 1985
filing date -
06/739,008
serial no -
Expired
status
Importance
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.
First Claim
Related Publications
International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,504,866 Image sensing apparatus | 28 | 1983 | |
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| 4,551,763 Diagonal sweep shutter mechanism for video tape camera | 10 | 1983 | |
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| 4,301,476 Phase controlled shuttering system with selectable shuttered and unshuttered modes | 17 | 1980 | |