Title:
変倍光学系および光学機器
Document Type and Number:
Japanese Patent JP7364084
Kind Code:
B2
Abstract:
A variable-magnification optical system (ZL) has a front-side lens group (GA) having a positive refractive power, a first intermediate lens group (GM1) having a negative refractive power, a second intermediate lens group (GM2) having a positive refractive power, and a succeeding lens group (GR), the succeeding lens group (GR) including a plurality of focusing lens groups that move along the optical axis during focusing, and satisfying the following conditions: −0.37
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Inventors:
Kosuke Machida
Application Number:
JP2022540080A
Publication Date:
October 18, 2023
Filing Date:
June 25, 2021
Export Citation:
Assignee:
NIKON CORPORATION
International Classes:
G02B15/20
Domestic Patent References:
| JP2019184632A | ||||
| JP2015215438A | ||||
| JP2020106627A | ||||
| JP2020086324A | ||||
| JP2020064175A | ||||
| JP2020052338A |
Foreign References:
| WO2015146067A1 |
Attorney, Agent or Firm:
Shogo Ohnishi
Toshiaki Namiki
Toshiaki Namiki