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Osram modifies its ambient light sensor to achieve outstanding signal quality

The new SFH 2440 photodiode from Osram Opto Semiconductors combines short switching times with a spectral sensitivity optimized for visible light. The component enables high-quality heart rate measurements to be made with the aid of green LEDs. Typical applications include wearables such as fitness armbands and smartwatches. With its greatly reduced sensitivity to infrared light, SFH 2440 is also ideal as an ambient light sensor.