Optical Mouse Write Up
The first optical mouses were introduced in 1980. At the time, there were only two different varieties of the optical mouse. One type used an inferred LED sensor and a special metallic pad to detect its position, and predictive algorithms to detect the speed at which the mouse is moving. Steve Kirsch of Mouse Systems Corporation invented this type of optical mouse.
Richard F. Lyon invented the second type of optical mouse introduced in 1980. He sold this mouse through the company Xerox. The difference between this mouse and Steve Kirsch’s mouse is that this mouse uses a 16-pixel visible-light image sensor. This means that the sensor on this mouse detects change in motion light dots on your mouse pad. The major difference between the two is that Lyon’s mouse would function normally if the mouse pad or the mouse itself were rotated, while Kirsch’s did not.

