How does an Optical Mouse work?
First the LED produces a red light that is emitted onto a surface. The light is reflected off the surface back to the CMOS sensor. The CMOS sensor sends each image that is reflected back to a DSP (Digital Signal Processor) for analysis.
Using the thousands of images that the CMOS sends to the DSP for analysis, the DSP is able to detect both patterns and images and can determine if the mouse has moved, at what distance it has moved and at what speed. It is able to determine coordinates which are then sent to the computer that the mouse is hooked up to.
zdroj/ENG/
a ako som to pochopil ja (nakolko nie som odbornik): LEDka oziari snimany povrch, CMOS senzor naskenuje povrch (s poctom snimok je spojena zrejme frekvencia mysi) a tieto "obrazky" povrchu porovnava. tu pracuje zrejme na principe, ze ziaden povrch nie je dokonale hladky, teda ani dva milimetre povrchnu nie su rovnake (s citlivostou snimania povrchu zrejme suvisi udaj 800-3000dpi /dot per inch/). ked sa snimky nezhoduju = mys sa hybe. tot moj laicky pohlad
