Wide-angle zoom lens system
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United States of America Patent
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Feb 8, 2005
Grant Date -
Mar 18, 2004
app pub date -
Aug 8, 2003
filing date -
Aug 22, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A wide-angle zoom lens system includes a negative first lens group, a positive second lens group, and a positive third lens group, in this order from the object. Upon zooming from the short focal length extremity to the long focal length extremity, the distance between the first lens group and the second lens group decreases, and the distance between the second lens group and the third lens group decreases.
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