High resolution scanning system including optical enlargement
AssigneeEnergy Conversion Devices, Inc.
InventorsStanford R. Ovshinsky, Lawrence G. Norris
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Abstract
A method for the high resolution sensing of a pattern of information so as to provide an output signal corresponding thereto includes the novel steps of optically generating an enlarged image of the pattern of information and sensing that enlarged image with a thin film photosensor array. By the use of optical enlargement, the effective resolution of the sensor array is increased. Apparatus utilizing this method may be employed in conjunction with printers or display devices to provide high resolution images of information being scanned.
Claims19
Apparatus for the high resolution sensing of a pattern of information, said apparatus comprising:
- optical means adapted to generate an enlarged image of the pattern of information;
- a thin film photosensor array operatively disposed relative to said optical system so as to sense the enlarged image and provide a signal corresponding thereto;
- and
- said thin film photosensor array including a plurality of layers of semiconductor material chosen from the group consisting essentially of:
- amorphous silicon alloy materials, amorphous germanium alloy materials, and amorphous silicon germanium alloy materials.
Dependencies are inferred from the claim text.