OPTICAL SAFETY SENSOR

An optical safety sensor is inexpensively implemented. An optical safety sensor (1) includes: a plurality of light projectors/receivers (a first light projector/receiver (20A) and a second light projector/receiver (20B)), which includes light projecting portions (21) and light receiving portions (22...

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Bibliographische Detailangaben
Hauptverfasser:	HIGUCHI, Toshiyuki, NING, Xiaoguang
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES BLASTING DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MECHANICAL ENGINEERING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SAFETY DEVICES IN GENERAL TESTING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	An optical safety sensor is inexpensively implemented. An optical safety sensor (1) includes: a plurality of light projectors/receivers (a first light projector/receiver (20A) and a second light projector/receiver (20B)), which includes light projecting portions (21) and light receiving portions (22); distance measurement portions (31), which measure distances using the time from light projecting to light receiving; and detection portions (32), which detect, based on measurement results, an abnormality occurring in any one of the plurality of light projectors/receivers; each of the light receiving portion provided in the plurality of light projectors/receivers receives reflected light caused by the light projected from the light projecting portions of all the plurality of light projectors/receivers.