Afaik optical mice operate on picture of the surface, while laser mouse operates on the direct reflection of the surface geometry. http://www.logitech.com/asse

Afaik optical mice operate on picture of the surface, while laser mouse operates on the direct reflection of the surface geometry. http://www.logitech.com/assets/35565/2/more-mousing-on-more-surfaces.png http://www.logitech.com/assets/35565/2/more-mousing-on-more-... http://gamingmiceplanet.com/wp-content/uploads/2015/11/Optical-or-Laser-Mouse-273x300.gif http://gamingmiceplanet.com/wp-content/uploads/2015/11/Optic...