Request InfoCairn Research Ltd.The OptoLED from Cairn Research Ltd. is an LED light source whose power supply can drive two LEDs independently at currents of up to 10 A. The drive current for each can be set by a front panel control or by an external control voltage. If the control voltage is modulated, the corresponding LED’s output can be changed within a few microseconds, and submicrosecond modulation can be achieved using digital control inputs. Independent digital inputs are provided for each LED and can be configured with opposite polarity so that a single control pulse can rapidly switch between two LEDs. The LEDs...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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