Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ban-Kuan Koay0
Li Chong Tai0
Theng Theng Quek0
Date of Patent
March 4, 2008
0Patent Application Number
108536250
Date Filed
May 25, 2004
0Patent Primary Examiner
Patent abstract
A method and apparatus for focusing an image of a work surface on an optical sensor array in an optical pointing device. Light from a region of the work surface is captured by an imaging system incorporating an optical coupling system and the optical sensor array. The focus of the imaging system is adjusted in accordance with the distance between the optical pointing device and the work surface. The distance may be sensed, or inferred by adjusting the imaging system to maximize the focus of the image.
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