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Optical Multiwavelength Window Contamination Monitor for Optical Control Sensors and Systems
Optical Multiwavelength Window Contamination Monitor for Optical Control Sensors and Systems
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机译:用于光学控制传感器和系统的光学多波长窗口污染监测仪
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摘要
A foreign-particle detection system for use with an optical instrument having a transmissive window with a first side and a second side includes a radiation source to emit a radiation signal, a diffusing reflector to diffusively spread the radiation signal emitted by the radiation source over the first side of the transmissive window, a radiation detector to detect, at the second side of the transmissive window, the diffusively spread radiation signal transmitted by the transmissive window, and to generate a detected radiation signal based on the detected diffusively spread radiation signal, and a computation module communicatively coupled to the radiation detector to detect a presence of foreign particles on at least one of the first side or the second side of the transmissive window based on at least the detected radiation signal.
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