Optical mouse with rolling ball

Details Optical mouse with rolling ball Optical mouse with rolling ball

2006-07-04

2006-07-04

Shankar, Vijay (Department: 2673)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

C345S157000, C345S167000, C345S163000, C345S164000

Reexamination Certificate

active

07071922

ABSTRACT:
An optical mouse is operated on a work surface and includes at least one light emitter for emitting a light beam; a light receiver contained by a casing; a rolling ball arranged on the casing and opposite to the light receiver. The light beam has only one reflection by the rolling ball during an optical path thereof and then is detected by the light receiver. The rolling ball is made of transparent material and the distance thereof with the light receiver is adjustable to vary image resolution. The optical mouse can be turned over and placed on a notebook computer for using as a track ball.

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