Integrated radiation sensing array

Details Integrated radiation sensing array Integrated radiation sensing array

H - Electricity

01

L

345/1, 358/11, 3

H01L 27/142 (2006.01) H01L 27/146 (2006.01) H01L 31/0392 (2006.01) H04N 1/028 (2006.01)

Patent

CA 1279127

ABSTRACT OF THE INVENTION An incident radiation sensing apparatus is provided which comprises an array of radiation sensitive elements, such as photovoltaic cells or photoresistors, formed as an integrated circuit on a substrate. Preferably crossing address lines are used to read the elements, and isolation devices, such as diodes, make the elements individually readable. A conversion means, for converting from a second form of radiant energy to a first form to which the sensing elements of the invention respond, can be placed over those element, enabling them to sense images in the second form of radiation. The invention can be used as a contact-type document scanner. The invention can also be used to integrate the amount of radiation which falls upon its sensors, greatly increasing its sensitivity.

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