COMPACT IMAGING LENS SYSTEM
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United States of America Patent
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Issued Date -
Sep 9, 2010
app pub date -
May 18, 2010
filing date -
Mar 13, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A compact imaging lens system includes three lenses. The first lens is a positive meniscus lens having a convex side facing toward the image side, which has a big focusing power and is provided to capture image and for balance of aberration. The first lens serves to make the lens system a low sensitivity lens system. The second lens is a negative lens and is provided mainly for correcting chromatic aberration and off-axis aberration. An aperture is set between the first and second lenses, and this is of benefit to balance of aberration. The third lens is a negative lens and is provided for correcting off axis aberration. All the lenses can be made of plastics. This facilitates cost reduction, weight reduction, while still maintains a high resolution.
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