Bolometer type uncooled infrared ray sensor and method for...

Details Bolometer type uncooled infrared ray sensor and method for... Bolometer type uncooled infrared ray sensor and method for...

2008-09-08

2010-06-15

Porta, David P (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

C250S332000

Reexamination Certificate

active

07737400

ABSTRACT:
A bolometer type uncooled infrared ray sensor includes: an image pickup region having detection pixels arranged in a matrix form on a semiconductor substrate to detect incident infrared rays; a plurality of row selection lines provided in the image pickup region; current sources capable of letting constant currents flow through the respective row selection lines; a plurality of signal lines provided in the image pickup region; voltage readout circuits provided so as to respectively correspond to the signal lines to read out signal voltages generated on the respectively corresponding signal lines; coupling capacitances respectively provided between the respective signal lines and the corresponding voltage readout circuits; and a calculator which calculates a difference between two signal voltages read out by the voltage readout circuits, corresponding to outputs of the same detection pixel for two different current values supplied from the current sources.

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U.S. Appl. No. 12/050,572, filed Mar. 18, 2008, Hiroto Honda, et al.

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