发明申请
US20220244502A1 OPTICAL SYSTEM, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING OPTICAL SYSTEM
有权
基本信息:
- 专利标题： OPTICAL SYSTEM, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING OPTICAL SYSTEM
- 申请号：US17594390 申请日：2020-03-18
- 公开(公告)号：US20220244502A1 公开(公告)日：2022-08-04
- 发明人： Yoko KOMATSUBARA , Toshinori TAKE , Masashi YAMASHITA , Satoshi MIWA
- 申请人： Nikon Corporation
- 申请人地址： JP Minato-ku, Tokyo
- 专利权人： Nikon Corporation
- 当前专利权人： Nikon Corporation
- 当前专利权人地址： JP Minato-ku, Tokyo
- 优先权： JP2019-085098 20190426
- 国际申请： PCT/JP2020/011986 WO 20200318
- 主分类号： G02B13/00
- IPC分类号： G02B13/00 ; G02B13/02
摘要：
An optical system and an optical apparatus that have favorable imaging performance and a method for manufacturing the optical system are provided.
An optical system OL includes, sequentially from an object side, a front group G1 having positive refractive power and a focusing group G2 that performs focusing by moving in an optical axis direction, the front group G1 includes, sequentially from the object side, a first lens L11, a second lens L12, and a third lens L13, and the optical system OL satisfies a condition expressed by an expression below, 0.10
An optical system OL includes, sequentially from an object side, a front group G1 having positive refractive power and a focusing group G2 that performs focusing by moving in an optical axis direction, the front group G1 includes, sequentially from the object side, a first lens L11, a second lens L12, and a third lens L13, and the optical system OL satisfies a condition expressed by an expression below, 0.10
IPC结构图谱:
| G | 物理 |
| --G02 | 光学 |
| ----G02B | 光学元件、系统或仪器 |
| ------G02B13/00 | 为下述用途专门设计的光学物镜 |