Lens system
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United States of America Patent
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Apr 23, 2013
Grant Date -
Apr 18, 2013
app pub date -
Oct 27, 2011
filing date -
Oct 14, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A lens system with positive refraction power, in order from the object-side to the image-side, includes a first lens group with negative refraction power and a second lens group with positive refraction power. The first lens group includes a first lens with negative refraction power, a second lens with positive refraction power, and a third lens with positive refraction power. The second lens group includes a fourth lens with negative refraction power, a fifth lens, and a sixth lens. The lens system satisfies the following condition: 5
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