Reading Optical Lens Module
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United States of America Patent
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N/A
Issued Date -
Jul 5, 2012
app pub date -
Jun 23, 2011
filing date -
Dec 30, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A reading optical lens module, along an optical axis, comprising: two lens elements of meniscus shape, an aperture stop and an image sensor, wherein the first lens element with its convex surface on the object side having bi-aspherical surfaces and the second lens element with its convex surface on the image side having bi-aspherical surfaces, the aperture stop aligning between the first element and the second lens element and the image sensor disposing on the image plane for converting the objective image to electrical signal. Additionally, the reading optical lens module satisfies conditions related to reduction of total length, expansion of field of view angle and increase of resolution for use in the compact bar-code reader machine.
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