Imaging lens
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United States of America Patent
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Dec 26, 2017
Grant Date -
Oct 12, 2017
app pub date -
Apr 8, 2016
filing date -
Apr 8, 2016
priority date (Note) -
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Abstract
An imaging lens including a first lens group, a second lens group, and an aperture stop is provided. The first lens group is disposed between an object side and an image side. The second lens group is disposed between the first lens group and the image side. The aperture stop is disposed between the first lens group and the second lens group. The imaging lens includes at least three cemented lenses, each of the cemented lenses includes at least one lens having non-zero refractive power, and at least one lens of each of the cemented lenses has an Abbe number greater than 80.
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