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Title:
ZOOM LENS, OPTICAL APPARATUS, AND ZOOM LENS PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2016/121926
Kind Code:
A1
Abstract:
A zoom lens that has, in order along the optical axis thereof from an object side, a first lens group that has negative refractive power, a second lens group that has positive refractive power, a third lens group that has negative refractive power, a fourth lens group that has positive refractive power, and a fifth lens group. During power variation, the interval between the first lens group and the second lens group varies, the interval between the second lens group and the third lens group varies, the interval between the third lens group and the fourth lens group varies, and the interval between the fourth lens group and the fifth lens group varies. The zoom lens satisfies a prescribed conditional expression.

Inventors:
UMEDA TAKESHI (JP)
Application Number:
PCT/JP2016/052655
Publication Date:
August 04, 2016
Filing Date:
January 29, 2016
Export Citation:
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Assignee:
NIKON CORP (JP)
International Classes:
G02B15/20
Domestic Patent References:
WO2013128856A12013-09-06
Foreign References:
JP2014016464A2014-01-30
JP2013080151A2013-05-02
JP2012113067A2012-06-14
JP2009008845A2009-01-15
JP2007094169A2007-04-12
JPH0380210A1991-04-05
JP2007187879A2007-07-26
JP2007279077A2007-10-25
US20080192360A12008-08-14
US20120268831A12012-10-25
JP2001042217A2001-02-16
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
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