公开(公告)号：US20190094496A1

公开(公告)日：2019-03-28

申请号：US16133479

申请日：2018-09-17

Applicant: FUJIFILM Corporation

Inventor： Shunsuke MIYAGISHIMA ,  Tetsuya ORI

IPC: G02B13/00 ,  G02B9/34 ,  G02B13/02 ,  G02B27/64

Abstract: The imaging lens consists of, in order from an object side, a first lens group having a positive refractive power, a second lens group having a positive refractive power, a stop, a third lens group having a negative refractive power, and a fourth lens group. The first lens group has, in order from the object side, a positive single lens, and two or more cemented lenses. The second lens group consists of a positive lens and a negative lens. During image blur correction, only the third lens group moves. A conditional expression relating to the back focal length Bf and the lens system total length TTL is satisfied: 2

公开(公告)号：US20180259754A1

公开(公告)日：2018-09-13

申请号：US15910043

申请日：2018-03-02

Applicant: FUJIFILM Corporation

Inventor： Shunsuke MIYAGISHIMA ,  Tetsuya ORI

IPC: G02B15/20 ,  G02B13/00 ,  G02B27/64 ,  G02B13/02

CPC classification number: G02B15/20 ,  G02B13/0045 ,  G02B13/009 ,  G02B13/02 ,  G02B15/17 ,  G02B27/646

Abstract: The zoom lens consisting of, in order from an object side: a first lens group that has a positive refractive power; a second lens group that has a negative refractive power; a third lens group that has a negative refractive power; an intermediate part; and a final lens group that has a positive refractive power. The first lens group consists of three lenses, and has a cemented lens which is formed by cementing at least one positive lens and at least one negative lens. The second lens group consists of, in order from the object side, a negative meniscus lens, a biconcave lens, and a biconvex lens. The third lens group consists of one lens. The final lens group has a lens, which is convex toward an image side, at a position closest to the image side. Each lens group moves in a predetermined direction during zooming, and only the third lens group moves in the direction of the optical axis during focusing, and predetermined conditional expressions are satisfied.

公开(公告)号：US20140375864A1

公开(公告)日：2014-12-25

申请号：US14479669

申请日：2014-09-08

Applicant: FUJIFILM Corporation

Inventor： Shunsuke MIYAGISHIMA ,  Shinichiro FUJIKI

IPC: H04N5/217 ,  H04N5/232 ,  G03B13/02

CPC classification number: H04N5/2173 ,  G03B13/02 ,  G03B13/06 ,  H04N5/2251 ,  H04N5/23293 ,  H04N5/3572

Abstract: An imaging device comprising: a first optical system formed by combining an optical system from an imaging lens to an image pickup element where a subject image is formed and an optical system from a display device where an electronic image of a subject representing an image formed at the image pickup element is displayed to an ocular unit of a finder; a second optical system which guides an optical image of the subject to the ocular unit; and a correcting device which performs, based on distortion aberration information about the first optical system and distortion aberration about the second optical system, distortion aberration correction so that distortion aberration equal to distortion aberration of the second optical system occurs in an electronic image of the subject and causes the electronic image to be displayed on the display device.

Abstract translation: 一种成像装置，包括：第一光学系统，其通过将来自成像透镜的光学系统与形成有被摄体图像的图像拾取元件组合而形成;以及来自显示装置的光学系统，其中所述对象的电子图像形成在 图像拾取元件被显示到取景器的目镜单元; 将所述受试者的光学图像引导到所述眼部单元的第二光学系统; 以及校正装置，其基于关于第一光学系统的失真像差信息和关于第二光学系统的畸变像差执行畸变像差校正，使得在被摄体的电子图像中发生与第二光学系统的畸变像差相等的畸变像差 并使电子图像显示在显示装置上。