公开(公告)号：US20220397740A1

公开(公告)日：2022-12-15

申请号：US17892115

申请日：2022-08-21

Applicant: FUJIFILM Corporation

Inventor： Masahiko SUGIMOTO ,  Shinichi SHIMOTSU ,  Toshihiro AOI ,  Tetsuya FUJIKAWA

IPC: G02B7/10 ,  G02B7/28

Abstract: A lens control device includes a processor that performs a control of generating image data for each of first wavelength range light and second wavelength range light by an image sensor, in which the processor estimates a first focus position of a focus lens for the first wavelength range light based on a first focus evaluation value determined in accordance with the image data of the first wavelength range light, estimates a second focus position of the focus lens for the first wavelength range light based on a second focus evaluation value determined in accordance with the image data of the second wavelength range light, and performs a control of moving the focus lens along an optical axis based on the first focus position in a case in which a comparison result obtained by comparing the first focus position with the second focus position satisfies a predetermined condition.

公开(公告)号：US20220385839A1

公开(公告)日：2022-12-01

申请号：US17885553

申请日：2022-08-11

Applicant: FUJIFILM Corporation

Inventor： SHINICHI SHIMOTSU ,  Masahiko SUGIMOTO ,  Tetsuya FUJIKAWA ,  Toshihiro AOI

IPC: H04N5/33 ,  G03B11/00 ,  G02B5/20 ,  G02B26/00 ,  G01J5/48

Abstract: An imaging apparatus includes an imaging optical system that has a light transmission characteristic of transmitting near-infrared light in a near-infrared light wavelength range including 1550 nm, and an imaging sensor that outputs an imaging signal by imaging the near-infrared light transmitted through the imaging optical system, the imaging sensor has sensitivity to heat radiation from a subject, and the imaging signal includes information regarding a heat radiation image by the heat radiation.

公开(公告)号：US20220137331A1

公开(公告)日：2022-05-05

申请号：US17578267

申请日：2022-01-18

Applicant: FUJIFILM Corporation

Inventor： Toshihiro AOI

IPC: G02B9/08 ,  G02B3/04

Abstract: The imaging lens consists of a positive first lens group, a stop, and a positive second lens group in order from the object side to the image side. An Ln lens, which is a negative lens having an absolute value of a curvature radius of an image side surface smaller than an absolute value of a curvature radius of an object side surface, is disposed at a position closest to the image side in the first lens group. In a Cartesian coordinate system in which a horizontal axis is an Abbe number ν and a vertical axis is a partial dispersion ratio θ, ν and θ of the Ln lens are included in a predetermined region.

公开(公告)号：US20180020135A1

公开(公告)日：2018-01-18

申请号：US15715494

申请日：2017-09-26

Applicant: FUJIFILM Corporation

Inventor： Toshihiro AOI ,  Kazuya YONEYAMA ,  Hiroyuki OSHIMA ,  Yasunobu KISHINE

IPC: H04N5/225 ,  G03B17/56 ,  H04N5/232 ,  G02B7/10

CPC classification number: H04N5/2252 ,  G03B17/08 ,  G03B17/14 ,  G03B17/565 ,  G08B13/19619 ,  G08B13/19626 ,  G08B13/1963 ,  H04N5/225 ,  H04N5/2254 ,  H04N5/23203 ,  H04N5/23225

Abstract: A dome-type camera includes a dome cover (11) and a camera unit (12). The dome cover (11) has a front surface (21) and a back surface (22). The camera unit (12) includes an optical system (13) and an imaging element (14). The optical system (13) is disposed on the back surface (22) side of the dome cover (11), and the imaging element (14) outputs image data on the basis of imaging light received via the optical system (13). At least the back surface (22) out of the front surface (21) and the back surface (22) of the dome cover (11) has at least an aspheric shape in which optical properties are continuously changed at a location other than a top t of the dome cover (11).

公开(公告)号：US20170242222A1

公开(公告)日：2017-08-24

申请号：US15412766

申请日：2017-01-23

Applicant: FUJIFILM Corporation

Inventor： Toshihiro AOI ,  Takashi KUNUGISE ,  Kazuyoshi OKADA ,  Michio CHO

IPC: G02B13/00 ,  G02B7/04 ,  G02B9/64

CPC classification number: G02B13/0045 ,  G02B7/04 ,  G02B9/64 ,  G02B13/04

Abstract: The imaging lens includes, in order from the object side, a first lens group that remains stationary during focusing; a diaphragm; and a positive second lens group that moves to the object side during focusing from a long range to a close range. The second lens group includes a positive Z lens that is formed continuously in order from a most image side, a negative Y lens that has an absolute value of a radius of curvature of an object side surface smaller than an absolute value of a radius of curvature of an image side surface, a positive X lens, and a negative W lens that has an absolute value of a radius of curvature of an image side surface smaller than that of an object side surface. The imaging lens satisfies a conditional expression about of the radii of curvature of the X lens and the W lens.

公开(公告)号：US20150309292A1

公开(公告)日：2015-10-29

申请号：US14698051

申请日：2015-04-28

Applicant: FUJIFILM Corporation

Inventor： Toshihiro AOI ,  Shinkichi IKEDA

IPC: G02B15/14

CPC classification number: G02B15/14 ,  G02B15/173

Abstract: A zoom lens consists of a positive first lens group fixed during zooming, a negative second lens group moved during zooming, a positive third lens group moved during zooming to correct an image plane variation due to the zooming, and a positive fourth lens group fixed during zooming and includes a stop on the most object side. The second lens group includes two or more positive lenses and one or more negative lenses. The zoom lens satisfies predetermined conditional expressions with respect to the second lens group.

Abstract translation: 变焦镜头包括在变焦期间固定的正的第一透镜组，在变焦期间移动的负第二透镜组，在变焦期间移动的正的第三透镜组以校正由于变焦引起的图像平面变化，以及正的第四透镜组在 放大并在最物体侧包含一个停止点。 第二透镜组包括两个或更多个正透镜和一个或多个负透镜。 变焦透镜满足关于第二透镜组的预定条件表达式。

公开(公告)号：US20150092281A1

公开(公告)日：2015-04-02

申请号：US14565741

申请日：2014-12-10

Applicant: FUJIFILM Corporation

Inventor： Toshihiro AOI ,  Shinkichi IKEDA

IPC: G02B15/173 ,  G02B13/18

CPC classification number: G02B15/173 ,  G02B13/18

Abstract: The zoom lens substantially consists of a positive first lens group which is fixed while changing magnification, a negative second lens group which moves while changing magnification, a positive third lens group which moves while changing magnification, and a positive fourth lens group which is fixed while changing magnification in this order from the object side. The image formation magnification rates of the second lens group and the third lens group simultaneously pass a −1× point while changing magnification from the wide angle to the telephoto. The second lens group substantially consists of a negative second-a lens group and a positive second-b lens group which independently move while changing magnification in this order from the object side, and the third lens group substantially consists of a positive third-a lens group and a positive third-b lens group which independently move while changing magnification in this order from the object side.

Abstract translation: 变焦透镜基本上由变倍放大时固定的正的第一透镜组，在改变倍率时移动的负的第二透镜组，在改变倍率时移动的正的第三透镜组以及固定的正的第四透镜组 从物体侧以此顺序改变放大倍率。 第二透镜组和第三透镜组的图像形成倍率在从广角向远摄改变倍率的同时通过-1×点。 第二透镜组基本上由负的第二透镜组和正的第二b透镜组组成，其在从物体侧依次改变倍率的同时独立地移动，并且第三透镜组基本上由正的第三透镜组 组和正的第三-B透镜组，其在从物体侧按照该顺序改变放大率时独立地移动。