Optical radiation sensor system having a radiation window with a non-circular opening
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United States of America Patent
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May 6, 2008
Grant Date -
Jun 16, 2005
app pub date -
Nov 29, 2004
filing date -
Dec 1, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There is described an optical radiation sensor device for detecting radiation in a radiation field. The device comprises a sensor element capable of detecting and responding to incident radiation from the radiation field and a radiation window interposed between the sensor element and the radiation field. The radiation window comprises a non-circular (preferably square) shaped radiation transparent opening. The optical radiation sensor device can be used in a so-called dynamic manner while mitigating or obviating the detection errors resulting from the use of a circular-shaped attenuating aperture and/or angular (even minor) misalignment of the sensor device with respect to the array of radiation sources when multiple such circular-shaped attenuating apertures are used.
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