公开(公告)号：US20160202453A1

公开(公告)日：2016-07-14

申请号：US15013276

申请日：2016-02-02

Applicant: TAMRON CO., LTD

Inventor： Yoshito IWASAWA

IPC: G02B13/00 ,  G02B27/00 ,  G02B15/16

CPC classification number: G02B13/009 ,  G02B9/00 ,  G02B9/60 ,  G02B9/62 ,  G02B13/18 ,  G02B15/14 ,  G02B15/16 ,  G02B15/173 ,  G02B27/0025 ,  H04N5/225

Abstract: Provided are: a zoom lens which exhibits a large variable-power ratio, an increased degree of freedom with respect to aberration correction, and which has been achieved having a sufficient reduction in size in the optical axis direction; and an imaging device equipped therewith. The zoom lens includes at least, from the object side, a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group, and a fifth lens group, in that order. In the zoom lens, prescribed conditions are satisfied.

公开(公告)号：US20230139669A1

公开(公告)日：2023-05-04

申请号：US17973025

申请日：2022-10-25

Applicant: TAMRON CO., LTD.

Inventor： Yoshito IWASAWA

IPC: G02B15/14 ,  H04N5/232

Abstract: A situation grasping means configured to grasp a situation of a moving body, an optical system mounted on the moving body, and a focusing group configured to change an imaging position of the optical system are provided, and the imaging position is changed to a position calculated from a setting value for setting the imaging position according to a situation of the moving body and a situation of the moving body grasped by the situation grasping means, and the optical system satisfies a predetermined conditional expression. Furthermore, the moving body includes the imaging apparatus.

公开(公告)号：US20210266457A1

公开(公告)日：2021-08-26

申请号：US17049454

申请日：2019-08-21

Applicant: TAMRON CO., LTD.

Inventor： Yoshito IWASAWA ,  Yasuhiko OBIKANE ,  Hisashi KITANO ,  Yuri KOYAMA ,  Yuichi IMAMIYA

IPC: H04N5/232 ,  G02B9/64

Abstract: To provide an image-capturing system capable of maintaining high analysis accuracy while reducing the amount of data related to image acquisition with a simple method. In order to achieve the object, the image-capturing system includes an image-capturing device configured to acquire image data of a subject, and an image-capturing control device configured to control image acquisition by the image-capturing device. The image-capturing control device includes a difference extraction means configured to extract difference data on the basis of any two image data items acquired by the image-capturing device, a change amount extraction means configured to extract change amount data on the basis of any two difference data items extracted by the difference extraction means, and a condition change means configured to change an image acquisition condition in the image-capturing device on the basis of the change amount data extracted by the change amount extraction means.

公开(公告)号：US20200285041A1

公开(公告)日：2020-09-10

申请号：US16553940

申请日：2019-08-28

Applicant: TAMRON CO., LTD.

Inventor： Yasuhiko OBIKANE ,  Yoshito IWASAWA ,  Yuichi IMAMIYA ,  Yuri KOYAMA

IPC: G02B23/24 ,  A61B1/05 ,  G02B13/00 ,  H04N5/225

Abstract: An observation imaging apparatus includes an insertion unit, an imaging lens, and an image sensor. The imaging lens is disposed in such a manner that an axial principal ray of an observation subject side surface of a lens is tilted with respect to a normal line passing through the center of gravity of a section of the insertion unit, the section passing through the center of an effective imaging range of the image sensor and having the smallest area. A point on the axial principal ray at which the distance between the normal line and the axial principal ray is smallest is located on the image side relative to the observation subject side surface of the lens and on the observation subject side relative to the image sensor. The observation imaging apparatus satisfies a predetermined conditional expression.

公开(公告)号：US20170082840A1

公开(公告)日：2017-03-23

申请号：US15364588

申请日：2016-11-30

Applicant: TAMRON CO., LTD.

Inventor： Yoshito IWASAWA ,  Jun Takahashi

IPC: G02B15/173 ,  G02B27/00 ,  G02B5/00 ,  G02B27/64

CPC classification number: G02B15/173 ,  G02B5/005 ,  G02B27/0025 ,  G02B27/646

Abstract: A zoom lens has in order from the object side, at least a foremost, first lens group having positive refractive power, a succeeding, second lens group having negative refractive power, a third lens group having positive refractive power, and a rearmost lens group having negative refractive power. The zoom lens meets requirements as defined in formulas regarding a displacement of the first lens group, a focal length of the zoom lens at the wide-angle end, a focal length of the zoom lens at the telephoto end, a focal length of the first lens group, and a focal length of the third lens group.