The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2020
Filed:
Sep. 04, 2018
Fujifilm Corporation, Tokyo, JP;
Takashi Suzuki, Saitama, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
The imaging lens consists of, in order from the object side, a first lens group having a positive power, a second lens group having a negative power, and a third lens group. The first lens group consists of, in order from the object side, a positive front group, a stop, and a positive rear group. The rear group has a cemented lens consisting of a negative lens concave toward the image side and a positive lens convex toward the image side in order from the object side. The second lens group consists of a negative lens. During focusing, only the second lens group moves. The following conditional expression relating to a focal length f2 of the second lens group and focal length f of the whole system is satisfied: 0.8<|f2/f|<5.