-
公开(公告)号：US20240103262A1
公开(公告)日：2024-03-28
申请号：US18469338
申请日：2023-09-18
Applicant: FUJIFILM Corporation
Inventor： Shunsuke MIYAGISHIMA
CPC classification number: G02B25/04 , G02B13/0045 , G02B25/001
Abstract: An observation optical system includes a display element, and an eyepiece lens disposed on an eyepoint side with respect to the display element. The eyepiece lens includes a first negative lens having strongest negative refractive power among lenses included in the eyepiece lens, a first positive lens disposed adjacent to a display element side of the first negative lens, and a second positive lens disposed closest to the display element side among positive lenses disposed on the eyepoint side with respect to the first negative lens. The number of lenses included in the eyepiece lens is greater than or equal to five. The observation optical system satisfies predetermined conditional expressions.
-
公开(公告)号：US20240089588A1
公开(公告)日：2024-03-14
申请号：US18516911
申请日：2023-11-21
Applicant: FUJIFILM Corporation
Inventor： Kosuke TAKAHASHI , Koichi TANAKA , Shunsuke MIYAGISHIMA , Hiroki SAITO , Tomoki OTSUKI
IPC: H04N23/63 , H04N23/695
CPC classification number: H04N23/634 , H04N23/695
Abstract: The imaging method is used in an imaging apparatus including an imaging element that captures a subject image and a moving mechanism configured to change a relative position between the subject image and the imaging element, the imaging method including: a changing step of changing the relative position a plurality of times; an imaging step of acquiring a plurality of first images by capturing the subject image using the imaging element at a plurality of the relative positions; a combining step of generating a second image by combining the plurality of first images; and a display step of performing a temporal display relating to the imaging step or the combining step.
-
公开(公告)号：US20230370712A1
公开(公告)日：2023-11-16
申请号：US18360663
申请日：2023-07-27
Applicant: FUJIFILM Corporation
Inventor： Kosuke TAKAHASHI , Shunsuke MIYAGISHIMA , Hiroki SAITO , Tomoki OTSUKI
CPC classification number: H04N23/631 , G03B17/20 , G03B13/02
Abstract: Provided is an observation apparatus capable of adjusting visibility of an image and of an optical image of a subject in consideration of an intensity of ambient light in a case where the image is displayed by being superimposed on the optical image. The observation apparatus (30) includes an optical system (32), a display mechanism (34) that displays an image based on a signal generated by an imaging element (20), and a light shielding mechanism (36) of which a light shielding rate is variable, and the optical image has a first optical region (OP1) and a second optical region (OP2). The display mechanism (34) superimposes the image on the first optical region (OP1) to display both the image and the optical image in an observable manner by a user. The light shielding mechanism (36) is disposed in an optical path between the subject and the display mechanism (34) and has a first light shielding region (36a) to be superimposed on the first optical region (OP1) and a second light shielding region (36b) to be superimposed on the second optical region (OP2). Control processing of controlling light shielding rates of the first light shielding region (36a) and of the second light shielding region (36b) based on the intensity of the ambient light is executed by the control unit (40) with respect to the light shielding mechanism (36).
-
公开(公告)号：US20230341664A1
公开(公告)日：2023-10-26
申请号：US18304391
申请日：2023-04-21
Applicant: FUJIFILM Corporation
Inventor： Yasutaka SHIMADA , Shunsuke MIYAGISHIMA
Abstract: The imaging lens includes, in order from an object side, a first lens group that has a refractive power, a second lens group that has a positive refractive power, and a third lens group that has a negative refractive power. During focusing, the second lens group moves. The second lens group includes a stop and at least three negative lenses. The imaging lens satisfies predetermined conditional expressions.
-
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).
-
Patent Agency Ranking
公开(公告)号：US20240151951A1
公开(公告)日：2024-05-09
申请号：US18408373
申请日：2024-01-09
Applicant: FUJIFILM Corporation
Inventor： Shunsuke MIYAGISHIMA
CPC classification number: G02B15/143505 , G02B15/20 , G02B27/0025
Abstract: An imaging lens consisting of, in order from an object side to an image side: a first lens group; a second lens group that has a positive refractive power; and a third lens group that has a negative refractive power, wherein the first lens group includes, successively in order from a position closest to the object side to the image side, two negative lenses and a positive lens, the second lens group includes a positive lens and a negative lens, during focusing from an object at infinity to a closest object, the first lens group remains stationary with respect to an image plane, and the second lens group moves along an optical axis, and assuming that a focal length of the first lens group is f1, and a focal length of the second lens group is f2, Conditional Expression (1) is satisfied: −0.5
-
公开(公告)号：US20230213838A1
公开(公告)日：2023-07-06
申请号：US18184322
申请日：2023-03-15
Applicant: FUJIFILM Corporation
Inventor： Shunsuke MIYAGISHIMA
CPC classification number: G03B13/06 , G02B25/001 , G02B27/0068
Abstract: An electronic view finder includes a display element that displays an image, and an eyepiece lens that is disposed on an eyepoint side of the display element and that is used for observing the image. The eyepiece lens consists of a first lens, a second lens having refractive power of a different sign from the first lens, and a third lens having positive refractive power in order from a display element side. Diopter is adjustable by moving at least one lens of the eyepiece lens. A television distortion of the image displayed by the display element varies depending on the diopter.
-
公开(公告)号：US20210208481A1
公开(公告)日：2021-07-08
申请号：US17131958
申请日：2020-12-23
Applicant: FUJIFILM Corporation
Inventor： Shunsuke MIYAGISHIMA
Abstract: An observation optical system including: a display element; and an eyepiece lens disposed on an eye point side of the display element, wherein the eyepiece lens consists of, in order from a display element side toward the eye point side, a first lens having a positive refractive power, a second lens having a negative refractive power, and a third lens having a positive refractive power, and in a case where a longest diameter of a display area in the display element is H, and a focal length of the eyepiece lens is fA, a conditional expression (1) is satisfied: 0.7
-
公开(公告)号：US20200228726A1
公开(公告)日：2020-07-16
申请号：US16833078
申请日：2020-03-27
Applicant: FUJIFILM Corporation
Inventor： Takeshi MISAWA , Michio CHO , Shigeru KONDOU , Atsushi MISAWA , Shunsuke MIYAGISHIMA , Nanae SAKUMA
IPC: H04N5/232
Abstract: A finder display unit displays a live view image based on a captured image generated by an imaging unit. A digital signal processing unit detects a movement vector between frames in the live view image for a predetermined portion in the captured image. A digital signal processing unit changes a display range of the live view image on the finder display unit based on the detected movement vector of a peripheral portion in the captured image.
-
公开(公告)号：US20180052383A1
公开(公告)日：2018-02-22
申请号：US15654090
申请日：2017-07-19
Applicant: FUJIFILM Corporation
Inventor： Shunsuke MIYAGISHIMA , Hiroki SAITO
CPC classification number: G03B13/06 , G02B9/12 , G03B13/16 , G03B17/20 , H04N5/23216 , H04N5/23293
Abstract: An ocular lens consists of a positive first lens group, a positive or negative second lens group, and a positive third lens group, in order from an observation object side. The first lens group consists of a positive meniscus lens with a convex surface toward an eye-point side. The second lens group includes a negative lens and a positive lens, and the number of lenses constituting the second lens group is three or less. The third lens group consists of a positive meniscus lens with a convex surface toward the eye-point side. The following conditional expression relating to a focal length of the whole system and a distance on an optical axis from a lens surface closest to the observation object side to a lens surface closest to the eye-point side is satisfied: 0.8
-
-
-
-
-
-
-
-
-
Search Results
23
records
(took 0.015 seconds)
