Optical mouse with a wavelength converting layer

Details Optical mouse with a wavelength converting layer Optical mouse with a wavelength converting layer

2005-09-12

2010-11-30

Nguyen, Chanh (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

Reexamination Certificate

active

07843434

ABSTRACT:
A pointing device having an illumination system, an imaging array, and a controller is disclosed. The illumination system illuminates a surface over which the pointing device moves, the illumination system generating a light signal having first and second spectral regions. A portion of the light signal is viewable by a user of the pointing device. The first spectral region includes visible light of a predetermined color and the second spectral region includes infrared light. The imaging array records a plurality of images of the illuminated surface and is sensitive to light in the second spectral region. The second spectral region can be chosen to match the sensitivity of a silicon imaging array, while the first spectral region provides a decorative glow that is seen by the user.

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