Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1997-09-17
1999-10-05
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
358474, H01J 314
Patent
active
059628480
ABSTRACT:
Resolution of a scanner is upgraded by utilizing refraction to shift light rays incident on an image capture device by a small distance, thus capturing image data between picture elements of an original picture. The scanner includes a scanning platform arranged to support a scanned object, a scanning light source, an image capture mechanism having a lens and a CCD component arranged to capture light received from said light scanning light source after the light has scanned the object on the scanning platform, and a light refracting component having a moving end and a fulcrum end, the light refracting component being pivotably interposed between the scanning platform and the image capture mechanism. An electro-magnet mechanism is arranged to attract the moving end of the refractive component and thereby pivot the component about its fulcrum end. The consequent pivoting of the light refracting component varies the amount by which the light refracting component refracts and thereby shift the light captured by the lens and CCD component. A counterweight can be added at the fulcrum end to minimize the energy necessary to move the component.
REFERENCES:
patent: 4641038 (1987-02-01), Baker
patent: 5786901 (1998-07-01), Okada et al.
Microtek International Inc.
Pyo Kevin
Westin Edward P.
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