Request InfoOptek Technology, Industrial Sensing & ControlTT electronics Optek Technology has launched the OPB733TR reflective object sensor for a variety of medical equipment. Measuring 7.62 x 4.06 mm with a PC board-mounted profile of 2.9 mm, the device incorporates a lensed infrared LED and phototransistor element to collimate the light beam for enhanced resolution at a detection range from 10 to 25.4 mm. The sensor’s LED delivers typical peak emission wavelengths of 890 nm and is mounted alongside a negative-positive-negative silicon phototransistor that responds to light reflected by the object being sensed. Its phototransistor output on-state...See full productRelated content from Photonics MediaPRODUCTSBioPhotonics Mar/Apr 2024 IssueMulti-LED for WearablesThe SFH 7018 is a red/green/IR LED package from ams OSRAM that can make photoplethysmography (PPG) measurements in smart watches, wristbands, and other wearable devices. 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