I tested several optical mice and wondered whether they really Take Pictures of their surface or only of the reflecttion of the LED or LASER that is emitted from the mouse?
If mice take a picture every millisecond or less then where are the pictures saved?
Can we access the pictures from the computer?
If the pictures are processed by a DSP(digital signal processor) then why is it that on some surfaces optical mice don't detect the movement of the mouse but laser mice do detect it? (source)
I tested that on some surfaces like wood that has a wooden pattern optical mice don't work, however they work on completely black mouse pads?