CPC H01L 31/02016 (2013.01) [G01J 1/44 (2013.01); H01L 31/09 (2013.01); G01J 2001/4446 (2013.01)] | 11 Claims |
1. A device comprising:
at least one photoconductor configured for exhibiting an electrical resistance Rphoto dependent on an illumination of a light-sensitive region of the photoconductor;
at least one photoconductor readout circuit, wherein the photoconductor readout circuit is configured for determining a differential voltage related to changes of the electrical resistance Rphoto of the photoconductor, wherein the photoconductor readout circuit comprises at least one bias voltage source configured for applying at least one periodically modulated bias voltage to the photoconductor such that an electric output changes its polarity at least once; and
at least one electrical element configured to balance the differential voltage at a given illumination level.
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