How does an optical mouse work?

Answer by  howliecat (73)

Sensors within the body of the mouse send images to a digital signal processor which then will analyze movements of the mouse and send them to the computer.

Answer by  dracon420 (249)

There are basically two parts to an optical mouse: a light emitting diode , and a "photo-diode". Basically, the light hits the surface the mouse is moving over and the photo-diode "sees" it. Then there is a computer algorithm that calculates the dots per inch. That all translates into movement on the screen.

Answer by  coly20032003 (78)

As far as I am concerned, the working process of an optical mouse is somewhat complex. For the optical mouse itself, it contains two-electrode valve, inductor and some other parts. These parts could make the computer have a perception about the moving of the optical mouse, so that it could locate its position.

Answer by  Sting1 (686)

An optical mouse uses a special sensor with a light-emitting diode which illuminates the surface on which the mouse is moving, and then detects his movement relative to said surface. That's why they don't work properly on glass or white/high reflective smooth surfaces, because the sensor can't detect movement.