Optomechanical mouse

Bottom of optical-mechanical and optical computer mouseThe optical-mechanical or Optomechanical mouse consists of a ball that rolls one of two wheels inside the mouse. Each wheel contains a circle of holes or notches, which allow a LED light to be shined through and detected by a sensor, as the wheel spins they represent an X or Y axis for the mouse pointer on your screen. This mouse is much more accurate than a mechanical mouse that used only wheels and rollers, however, is not as good as an optical mouse.

Related pages

Also see: Mechanical mouse, Mouse terms, Optical mouse