Logitech, Inc.

Francois Bauduin

Denis O'Keeffe

Marc A Bidiville

Javier Arreguit

Harthmuth Buczek

Floris A Van Shaik

Eric Raeber

A dual-layer optical ball for use in a cursor control pointing device. The ball is illuminated by a light source that emits light signals at, at least, a first wavelength, the ball having an inner layer surface that is capable of diffusing a light signal and an outer layer having a substantially smooth surface that surrounds the inner layer. The outer layer is substantially transparent to light at the first frequency. The inner layer diffuses the light signals at different intensities depending upon an the area of the inner surface that is illuminated.

Growing community of inventors

Chézard, Switzerland

Francois Bauduin