Zoom lens and image pickup apparatus including the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 30, 2018
Grant Date -
Jun 2, 2016
app pub date -
Nov 19, 2015
filing date -
Nov 28, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided is a zoom lens, including, in order from an object side to an image side: first to fourth lens units respectively having positive, negative, positive and negative refractive powers; and a fifth lens unit having a positive or negative refractive power. In the zoom lens, intervals between adjacent lens units are changed during zooming. The third lens unit includes four or more lenses, and in the third lens unit, a lens arranged closest to the image side, a lens arranged second when counted from the image side, and a lens arranged third when counted from the image side are arranged with air gaps therebetween. A focal length of the zoom lens at a telephoto end, and a movement amount of the first lens unit during zooming from a wide-angle end to the telephoto end are set appropriately.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- G02B Class
- 28.28 % this patent is cited more than
- 7 Age
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