Optical mouse having image lights source with different colors

Details Optical mouse having image lights source with different colors Optical mouse having image lights source with different colors

2007-11-27

2007-11-27

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

Reexamination Certificate

active

10814147

ABSTRACT:
An optical mouse has a housing, a printed circuit board, a light source unit, a photodetector unit, a light-guiding unit and a lens unit. The light source unit has different colors of image light sources and is disposed on the printed circuit board. The light-guiding unit is arranged in the housing and adjacent to the light source unit for guiding a non-complementary color light relative to a reflection surface from one of the image light sources to the reflection surface. The lens unit is arranged in the housing and positioned below the photodetector unit for converging a reflected light reflected by the reflection surface into the photodetector unit. Furthermore, the optical mouse can be operated on various colors of reflection surfaces, and still retains better sensitivity.

REFERENCES:
patent: 6111563 (2000-08-01), Hines
patent: 6424337 (2002-07-01), Eriksson et al.
patent: 6697053 (2004-02-01), Kajihara
patent: 6819314 (2004-11-01), Black

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