公开(公告)号：US20220365391A1

公开(公告)日：2022-11-17

申请号：US17862407

申请日：2022-07-12

Applicant: FUJIFILM Corporation

Inventor： Kazuyoshi OKADA ,  Yasunobu KISHINE ,  Atsushi KAWANAGO ,  Yuya HIRAKAWA

IPC: G02F1/1335 ,  G02B5/30 ,  H04N5/225

Abstract: Provided are an image processing device, an imaging element, an image processing method, and an image processing program that satisfactorily generate a plurality of polarized image data from polarized image data acquired from an imaging element. A processor (200B) of an image processing device (200) performs an acquisition process of acquiring first image data from an imaging element (100) in which four first-polarizers having different polarization directions are regularly provided on pixels arranged in a two-dimensional manner, a first polarized image data generation process of performing a demosaicing process on the first image data to generate four pieces of first polarized image data having different polarization directions, and a second polarized image data generation process of generating four or less pieces of second polarized image data by using the four pieces of first polarized image data and a relationship between the polarization directions of the four first-polarizers stored in the memory (200C).

公开(公告)号：US20190094533A1

公开(公告)日：2019-03-28

申请号：US16133038

申请日：2018-09-17

Applicant: FUJIFILM Corporation

Inventor： Yukiko NAGATOSHI ,  Shunsuke MIYAGISHIMA ,  Kazuyoshi OKADA ,  Ukyo TOMIOKA ,  Masaru YONEZAWA ,  Yasutaka SHIMADA

IPC: G02B27/00 ,  G02B13/00 ,  G02B15/177 ,  G02B13/04 ,  G02B9/64

Abstract: The imaging lens includes at least one negative lens that satisfies predetermined Conditional Expressions (1) to (3) indicating conditions in which dispersion is relatively low and refractive index is high while having a negative rate of change of the refractive index. A positive lens having a largest Abbe number at the d line among positive lenses included in the imaging lens satisfies predetermined Conditional Expressions (4) and (5).

公开(公告)号：US20190086651A1

公开(公告)日：2019-03-21

申请号：US16130141

申请日：2018-09-13

Applicant: FUJIFILM Corporation

Inventor： Kazuyoshi OKADA ,  Takashi KUNUGISE

IPC: G02B13/22 ,  G02B13/00 ,  G02B15/14 ,  G02B27/00

CPC classification number: G02B13/22 ,  G02B13/0045 ,  G02B15/14 ,  G02B27/0025

Abstract: The imaging lens consists of, in order from the object side, a positive first lens group that has a positive refractive power and remains stationary during focusing, and a second lens group that moves toward an image side during focusing from a distant object to a close-range object. The first lens group has, successively in order from a position closest to the image side, a first-b sub-lens group having a positive refractive power, and an aperture stop. The imaging lens satisfies predetermined conditional expressions relating to the first-b sub-lens group, the second lens group, and the like.

公开(公告)号：US20180088299A1

公开(公告)日：2018-03-29

申请号：US15696216

申请日：2017-09-06

Applicant: FUJIFILM Corporation

Inventor： Kazuyoshi OKADA ,  Takashi KUNUGISE ,  Yasunobu KISHINE ,  Michio CHO

IPC: G02B7/10 ,  G02B9/64 ,  G02B13/04

CPC classification number: G02B7/10 ,  G02B9/64 ,  G02B13/04

Abstract: The imaging lens includes a first lens group fixed during focusing and a positive second lens group moving to an object side during focusing from a long-distance object to a short-distance object, in order from a side closest to the object. The field curvature is adjusted by moving the first lens group or a sub-lens group within the first lens group including a lens closest to the object side, as an adjustment group. A stop fixed during the adjustment of the field curvature is disposed closer to an image side than the adjustment group. Conditional expressions relating to the focal length of the whole system, the focal length of the adjustment group, and the height of a paraxial on-axis light ray in the adjustment group are satisfied.

公开(公告)号：US20160291296A1

公开(公告)日：2016-10-06

申请号：US15070690

申请日：2016-03-15

Applicant: FUJIFILM Corporation

Inventor： Kazuyoshi OKADA ,  Ping SUN

IPC: G02B13/04 ,  G02B13/00 ,  G02B27/00 ,  G02B9/64

CPC classification number: G02B13/06 ,  G02B13/006

Abstract: An imaging lens consists of, in order from the object side, a front group having a negative refractive power, a stop, and a rear group having a positive refractive power. The front group consist of a front-group negative lens group that consists of three negative lenses and has a negative refractive power, and a front-group positive lens group that includes one positive lens and one negative lens and has a positive refractive power, where the negative lens is disposed at the most image-side position. The rear group includes two positive lenses and two negative lenses. The imaging lens satisfies condition expression (1): 0.95

Abstract translation: 成像透镜从物体侧开始依次具有具有正折射光焦度的正折射光焦度的前组以及具有正折射光焦度的后组。 前组包括由三个负透镜组成并具有负折光力的前组负透镜组，以及包括一个正透镜和一个负透镜并具有正折射光焦度的前组正透镜组，其中 负透镜设置在最靠近图像侧的位置。 后组包括两个正透镜和两个负透镜。 成像透镜满足条件表达式（1）：0.95 <-fAn / f <2，其中fAn是前组负透镜组的焦距，f是整个系统的焦距。