Optical unit and image pickup apparatus
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United States of America Patent
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May 7, 2013
Grant Date -
Jun 30, 2011
app pub date -
Dec 3, 2010
filing date -
Dec 24, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optical unit includes a first lens, a diaphragm, a second lens, a third lens, a fourth lens, and a fifth lens. The first lens is a positive meniscus lens which is convex toward an object side. The second lens has a positive power. The third lens has a negative power. The fourth lens has a positive power. The fifth lens has a negative power. Those are arranged in the stated order from the object side to an image plane side.
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