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Detection device with visual field obstruction monitoring function
Detection device with visual field obstruction monitoring function
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机译：具有视野障碍监控功能的检测装置
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摘要
PROBLEM TO BE SOLVED: To provide a visual field obstruction monitoring function in a detection device with a visual field obstruction monitoring function, in which the detection sensitivity of human body detection of the detection device does not decrease. SOLUTION: In a detection device with a visual field obstruction monitoring function, a near light shielding structure 142 is arranged in the vicinity of a light projecting element 110 so as to overlap an end of a light guide unit 130, and a light beam projected from the light projecting element 110. R passes through the light guide unit 130, and the light projecting area T expands so as to cover the fields of view of the cover 170 and the detection element 190. If there is an obstacle A, the light ray R is reflected and transmitted through the light transmitting portion 171 of the cover. The field interference is detected by reaching the light receiving element 120. [Selection diagram] Fig. 1
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