-
1.发明公开公开(公告)号：US20240267622A1
公开(公告)日：2024-08-08
申请号：US18540800
申请日：2023-12-14
Applicant: FUJIFILM Corporation
Inventor： Ryosuke NAGAMI , Hideaki KOKUBUN
CPC classification number: H04N23/675 , G02B7/28 , H04N23/63 , H04N25/61 , H04N25/78
Abstract: A focusing calculation includes two focusing calculation methods with different focusing performance and resistance to noise on a signal for calculation. A noise removal unit and a focusing calculation unit of a CPU select a focusing calculation method from among two focusing calculation methods based on a result of performing the focusing calculation at least once using any one of two focusing calculation methods, and perform the focusing calculation using the selected focusing calculation method. More specifically, in a case where a reliability degree of the focusing calculation using any one of two focusing calculation methods is high, the one focusing calculation method is selected. On the contrary, in a case where the reliability degree of the focusing calculation using any one of two focusing calculation methods is low, the other focusing calculation method is selected.
-
公开(公告)号：US20210311287A1
公开(公告)日：2021-10-07
申请号：US17344866
申请日：2021-06-10
Applicant: FUJIFILM Corporation
Inventor： Ryosuke NAGAMI
Abstract: The zoom lens consists of, in order from the object side, a first lens group that has a negative refractive power; a second lens group that has a positive refractive power; a third lens group that has a negative refractive power; and a fourth lens group that has a positive refractive power. During zooming, in each lens group, distances between the adjacent groups in the direction of the optical axis are changed. The first lens group consists of, in order from the object side, a first lens having a negative refractive power, a second lens having a negative refractive power, and a third lens having a positive refractive power. The third lens group consists of a negative lens. During focusing, only the third lens group moves along the optical axis. The zoom lens satisfies predetermined conditional expressions.
-
公开(公告)号：US20210286156A1
公开(公告)日：2021-09-16
申请号：US17188021
申请日：2021-03-01
Applicant: FUJIFILM Corporation
Inventor： Taiga NODA , Ryosuke NAGAMI
Abstract: A zoom lens consists of, in order from an object side to an image side: a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive refractive power; a fourth lens group having a positive refractive power; a fifth lens group having a negative refractive power; and a sixth lens group having a positive refractive power. During zooming from the wide angle end to the telephoto end, the distance between the adjacent lens groups in the optical axis direction changes, and the third lens group and the fifth lens group move integrally along the optical axis.
-
公开(公告)号：US20190064477A1
公开(公告)日：2019-02-28
申请号：US16108622
申请日：2018-08-22
Applicant: FUJIFILM Corporation
Inventor： Ryosuke NAGAMI
CPC classification number: G02B9/34 , G02B7/14 , G02B15/155 , G02B15/177 , G02B27/0037 , G02B27/646 , H04N5/2254
Abstract: The zoom lens consists of, in order from the object side, a first lens group that has a negative refractive power; a second lens group that has a positive refractive power; a third lens group that has a negative refractive power; and a fourth lens group that has a positive refractive power. During zooming, in each lens group, distances between the adjacent groups in the direction of the optical axis are changed. The first lens group consists of, in order from the object side, a first lens having a negative refractive power, a second lens having a negative refractive power, and a third lens having a positive refractive power. The third lens group consists of a negative lens. During focusing, only the third lens group moves along the optical axis. The zoom lens satisfies predetermined conditional expressions.
-
公开(公告)号：US20180095246A1
公开(公告)日：2018-04-05
申请号：US15717999
申请日：2017-09-28
Applicant: FUJIFILM Corporation
Inventor： Ryosuke NAGAMI , Tetsuya ORI
CPC classification number: G02B13/0035 , G02B7/09 , G02B9/26 , G02B13/00 , G02B13/0045 , G02B13/006
Abstract: The imaging lens consists of, in order from the object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having a positive refractive power. The first lens group has a positive lens, a positive lens, and a negative lens successively in order from a position closest to the object side. The second lens group consists of one negative lens. The third lens group includes two or less lenses. During focusing, only the second lens group moves. The following conditional expression, which relates to a focal length f of the whole system in a state where the object at infinity is in focus and a focal length f2 of the second lens group , is satisfied: 0.4
-
Patent Agency Ranking
公开(公告)号：US20220019055A1
公开(公告)日：2022-01-20
申请号：US17490890
申请日：2021-09-30
Applicant: FUJIFILM Corporation
Inventor： Ryosuke NAGAMI
Abstract: The zoom lens consists of, in order from the object side, a first lens group that has a negative refractive power; a second lens group that has a positive refractive power; a third lens group that has a negative refractive power; and a fourth lens group that has a positive refractive power. During zooming, in each lens group, distances between the adjacent groups in the direction of the optical axis are changed. The first lens group consists of, in order from the object side, a first lens having a negative refractive power, a second lens having a negative refractive power, and a third lens having a positive refractive power. The third lens group consists of a negative lens. During focusing, only the third lens group moves along the optical axis. The zoom lens satisfies predetermined conditional expressions.
-
公开(公告)号：US20210364768A1
公开(公告)日：2021-11-25
申请号：US17321774
申请日：2021-05-17
Applicant: FUJIFILM Corporation
Inventor： Ryosuke NAGAMI
Abstract: The zoom lens includes, in order from a position closest to an object side to an image side: a first lens group that has a positive refractive power; a second lens group that has a negative refractive power; an intermediate group that has a positive refractive power; and a subsequent group that has a negative refractive power. The first lens group moves during zooming. The second lens group consists of, in order from the object side to the image side, a front group of the second lens group which does not move during image blur correction and an image stabilization group which moves during image blur correction and has a negative refractive power. The zoom lens satisfies predetermined conditional expressions.
-
公开(公告)号：US20210224958A1
公开(公告)日：2021-07-22
申请号：US17221161
申请日：2021-04-02
Applicant: FUJIFILM Corporation
Inventor： Keito KAMIO , Kazuaki OKAMORI , Shinichiro FUJIKI , Ryosuke NAGAMI
Abstract: Provided are an image blur correcting device that capable of improving a degree of freedom in design and realizing miniaturization or weight reduction, a lens device including the image blur correcting device, and an imaging device including the lens device. An image blur correcting device includes a fixing member, a first movable member that is supported by the fixing member in a state of being movable in a direction X, and a second movable member that is supported by the first movable member in a state of being movable in a direction Y. A second coil that drives the second movable member is fixed to one first surface of the second movable member in a direction Z, and a first coil that drives the first movable member is fixed to the other second surface of the second movable member in the direction Z.
-
公开(公告)号：US20200073096A1
公开(公告)日：2020-03-05
申请号：US16536232
申请日：2019-08-08
Applicant: FUJIFILM Corporation
Inventor： Ryosuke NAGAMI
Abstract: The imaging lens consists of, in order from an object side, a positive first lens group, a positive second lens group, and a negative third lens group. During focusing, only the second lens group moves. The number of lenses included in the second lens group is two or less. The lens on the most object side is a negative lens having a convex surface toward the object side. The lens surface on the most image side is a convex surface. The first lens group includes a stop. Predetermined conditional expressions related to the first lens group and the second lens group are satisfied.
-
公开(公告)号：US20230003968A1
公开(公告)日：2023-01-05
申请号：US17843233
申请日：2022-06-17
Applicant: FUJIFILM Corporation
Inventor： Ryosuke NAGAMI , Hiroki SAITO
Abstract: An imaging lens consisting of, in order from an object side to an image side: a front group; a stop; and a rear group that has a positive refractive power. The imaging lens satisfies predetermined conditional expressions.
-
-
-
-
-
-
-
-
-
Search Results
20
records
(took 0.014 seconds)
