OPTICAL SYSTEM OF OPTICAL MOUSE Russian patent published in 2007 - IPC G06F3/33 G09G5/08 

FIELD: machine vision technique.

SUBSTANCE: optical system of optical mouse can be used in contact scanning image converters, in particular, in optical mouse to control cursor on computer screen, in portable reading-out device and etcetera. Optical system of optical mouse has photodetector, lens of optical channel for transmitting image of working part of object surface onto surface of photodetector. Optical system also has radiation source, light guide with lens and mirror surfaces. Photodetector and radiation sources belong to the same plane. Mutual disposition of lens and mirror surfaces in light guide is made in such way that radiation from radiation sources should fall onto object surface in form of meet flows.

EFFECT: improved illumination onto working part of object surface; reduced non-uniformity of illumination; reduced cost of device.

2 dwg