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公开(公告)号:US07339575B2
公开(公告)日:2008-03-04
申请号:US10853625
申请日:2004-05-25
申请人: Li Chong Tai , Theng Theng Quek , Ban-Kuan Koay
发明人: Li Chong Tai , Theng Theng Quek , Ban-Kuan Koay
IPC分类号: G09G5/08
CPC分类号: G06F3/03543 , G06F3/0317
摘要: 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.
摘要翻译: 一种用于将工作表面的图像聚焦在光学指向装置中的光学传感器阵列上的方法和装置。 来自工作表面的区域的光由包含光耦合系统和光学传感器阵列的成像系统捕获。 根据光学指向装置和工作表面之间的距离来调整成像系统的焦点。 可以通过调整成像系统来感测或推断距离,以使图像的焦点最大化。
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公开(公告)号:US20050264531A1
公开(公告)日:2005-12-01
申请号:US10853625
申请日:2004-05-25
申请人: Li Tai , Theng Quek , Ban-Kuan Koay
发明人: Li Tai , Theng Quek , Ban-Kuan Koay
CPC分类号: G06F3/03543 , G06F3/0317
摘要: 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.
摘要翻译: 一种用于将工作表面的图像聚焦在光学指向装置中的光学传感器阵列上的方法和装置。 来自工作表面的区域的光由包含光耦合系统和光学传感器阵列的成像系统捕获。 根据光学指向装置和工作表面之间的距离来调整成像系统的焦点。 可以通过调整成像系统来感测或推断距离,以使图像的焦点最大化。
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