This article gives an overview of the optical technology used in the Apple Pro Mouse.

The optical technology in the Apple Pro Mouse works by beaming a light on the surface beneath the mouse and taking pictures of it. To ensure precise tracking, even during fast movement, the mouse takes 1500 pictures per second. These pictures are analyzed by a high-performance digital signal processor to determine direction and magnitude of movement. These data are communicated back to your computer and are interpreted into smooth pointer action on the screen.