MULTIPLE-OPTICAL-AXIS PHOTOELECTRIC SENSOR
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United States of America Patent
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app pub date -
Jun 28, 2017
filing date -
Jul 13, 2016
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Abstract
A light projector and a light receiver each includes a case body, a light transmission plate closing an opening in a front face of the case body, and a pair of caps closing openings in end faces of the case body. The case body includes first supports supporting side edges of the light transmission plate, the caps respectively include second supports supporting ends of the light transmission plate, the light transmission plate is supported by the first supports and the second supports with an elastic member interposed between the light transmission plate and the first and second supports, and first engagement units engaging with each other to restrict inward displacements of the ends of the light transmission plate supported by the second supports in the longitudinal direction are respectively provided in the cap and the light transmission plate.
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