Invention Grant
- Patent Title: Rear converter lens and imaging apparatus
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Application No.: US16453653Application Date: 2019-06-26
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Publication No.: US11079573B2Publication Date: 2021-08-03
- Inventor: Tetsuya Ori
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Studebaker & Brackett PC
- Priority: JPJP2018-133425 20180713
- Main IPC: G02B9/12
- IPC: G02B9/12 ; G02B13/16 ; G02B13/18 ; G02B9/64 ; G02B9/22 ; G02B9/30 ; G02B9/14 ; G02B13/00 ; G02B13/02

Abstract:
A rear converter lens consists of, in order from the object side, a positive first lens group, a negative second lens group, and a positive third lens group. The first lens group consists of a cemented lens in which a negative lens concave toward the image side and a positive lens convex toward the object side are cemented, the second lens group consists of a cemented lens in which a negative lens concave toward the image side, a positive lens convex toward both sides, and a negative lens concave toward the object side are cemented, and the third lens group consists of, in order from the object side, a third lens group-first lens that is a positive lens convex toward the object side and a third lens group-second lens that is a negative lens.
Public/Granted literature
- US20200018936A1 REAR CONVERTER LENS AND IMAGING APPARATUS Public/Granted day:2020-01-16
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