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Title
Optische Sensorvorrichtung mit Stoersignalkompensation
Date Issued
1997
Author(s)
Schanz, Michael
Patent No
1996-19612660
Abstract
The optical sensor system has at least one optical sensor element (20), which depending on an optical information signal falling on the same, produces a first electrical signal (IS), which consists of an electrical information signal and an interference signal. One reference sensor element (22) at least is provided, which is not exposed to the optical information signal (28) and produces a second electrical signal (Idark). This second electrical signal corresponds to the interference signal or is derived from this. A unit (24, 30) is provided for combining the first and second electrical signals in such a manner. That the resulting electrical signal (ISK) is closer to the electrical information signal, than the second electrical signal. ADVANTAGE - Optical sensor system, output signal of which is based on optical information signal and free from interference signals.
Language
de
Patenprio
DE 1996-19612660 A: 19960329