Photodetector arrangement and method for stray ligh compensation
OwnerHelmut Riedel, Andreas Von Dahl +2inventors
InventorsHelmut Riedel, Andreas Von Dahl, Christian Lang, Friedrich Zywitza
Life of this patent
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Abstract
The invention relates to a photodetector arrangement for stray light compensation with a photodetector unit for detecting and determining at least two measuring signals and with a differential unit for subtraction of the measuring signals, wherein between the photodetector unit and the differential unit a compensation unit is provided for compensating the constant components forming the basis of the respective measuring signal.
Claims15
A photodetector arrangement (1) for stray light compensation with a photodetector unit (2) for detecting and determining at least two measuring signals (S1 and S2) and with a differential unit (6) for subtraction of the measuring signals (S1 and S2), wherein between the photodetector unit (2) and the differential unit (6) a compensation unit (4) is provided for compensating the constant components (SGL, SmGL) forming the basis of the respective measuring signal (S1 and S2).
3-8. (canceled)
A method for stray light compensation of measuring signals (S1, S2) detected by means of a photodetector unit (2), wherein a constant component (SGL, SmGL) forming the basis of the respective measuring signal (S1, S2) is compensated before subtraction of the measuring signals (S1, S2).
11-13. (canceled)
Dependencies are inferred from the claim text.