US Patent 6837433 Variable focal length imaging device
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Patent abstract
A variable focal length imaging device. The device has an image-sensing component and a variable focal length lens in visual cooperation with the image-sensing component. The variable focal length lens has a focal length that varies across its surface such that a different portion of the lens focuses, onto different regions of the sensing component, objects at different distances from the lens. In this fashion, the device is able to read symbols at varying distances from the device.
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Patent Inventor Names
Geoff Lyon0
Mehrban Jam0
Date of Patent
January 4, 2005
0Patent Application Number
101368300
Date Filed
April 30, 2002
0Patent Primary Examiner
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US Patent 6837433 Variable focal length imaging device
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