Optical mouse adapted for use on glass surfaces

Details Optical mouse adapted for use on glass surfaces Optical mouse adapted for use on glass surfaces

2006-03-28

2006-03-28

Eisen, Alexander (Department: 2674)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

C345S215000, C345S166000

Reexamination Certificate

active

07019733

ABSTRACT:
A pointing device having an illumination system, camera system, and positioning mechanism is disclosed. The illumination system illuminates a surface below a transparent plate having a constant thickness. The camera system records images of the illuminated surface. The positioning mechanism adjusts the relative position of the illumination with respect to the camera system. The relative position is determined by the constant thickness. The positioning mechanism has a first position corresponding to a predetermined value for the constant thickness and a second position corresponding to the constant thickness being zero. The positioning mechanism is operable by a user of the pointing device to compensate for different thicknesses of transparent plates.

REFERENCES:
patent: 6741234 (2004-05-01), Son
patent: 2002/0080117 (2002-06-01), Son et al.
patent: 2002/0080121 (2002-06-01), Son

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