Title:
ZOOM LENS AND IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/062958
Kind Code:
A1
Abstract:
Provided are a zooming lens and an imaging device that are small and light-weight, and have high optical performance. The zooming lens (30) comprises, in order from the object side, a negative front group and a positive rear group. The front group includes, in order from the object side, a positive lens group G1 (G1) and a negative composite lens group Gn (G2). The rear group includes a positive composite lens group Gp (G3), a negative lens group Gf (G4), and a negative lens group Gr (G5). The zooming lens (30) have specific optical characteristics expressed by two specific expressions.
Inventors:
YAMANAKA HISAYUKI (JP)
TAKAHASHI JUN (JP)
TAKE TOSHINORI (JP)
KOIDA KEIGO (JP)
TAKAHASHI JUN (JP)
TAKE TOSHINORI (JP)
KOIDA KEIGO (JP)
Application Number:
PCT/JP2023/032963
Publication Date:
March 28, 2024
Filing Date:
September 11, 2023
Export Citation:
Assignee:
TAMRON KK (JP)
NIKON CORP (JP)
NIKON CORP (JP)
International Classes:
G02B15/20; G02B13/18
Foreign References:
| JP2014228807A | 2014-12-08 | |||
| JP2012047814A | 2012-03-08 | |||
| JP2018022058A | 2018-02-08 | |||
| JP2019113750A | 2019-07-11 | |||
| JP2020129065A | 2020-08-27 | |||
| JP2023125584A | 2023-09-07 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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