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Optical sensors use an infrared LED light to illuminate the surface beneath the mouse. The sensor then captures rapid images of that surface and calculates movement based on how the texture shifts frame to frame. Because the LED doesn't penetrate dee...











































Laser sensors, on the other hand, use a laser diode that penetrates deeper into the surface texture. This gives them the ability to work on a much wider range of surfaces — including glass and glossy materials where optical sensors struggle. However,...

































































