公开(公告)号：US12207880B2

公开(公告)日：2025-01-28

申请号：US17255036

申请日：2019-07-02

Applicant: NIDEK CO., LTD.

Inventor： Tetsuyuki Miwa ,  Tsutomu Uemura ,  Kazunari Shimizu

IPC: A61B3/16 ,  A61B3/00

Abstract: An ultrasonic tonometer for measuring the eye pressure of an examinee's eye by means of an ultrasonic wave includes an ultrasonic actuator having an ultrasonic element and configured to irradiate the examinee's eye with the ultrasonic wave, and current adjustment means configured to adjust a current applied to the ultrasonic element to control the sound pressure or acoustic radiation pressure of the ultrasonic wave. With this configuration, the ultrasonic tonometer solving at least one of typical problems can be provided. For example, the ultrasonic tonometer capable of properly irradiating the examinee's eye with the ultrasonic wave can be provided.

公开(公告)号：US12109108B2

公开(公告)日：2024-10-08

申请号：US17857578

申请日：2022-07-05

Applicant: NIDEK CO., LTD.

Inventor： Hiroshi Ohta ,  Tomoya Monobe

IPC: A61F2/16

CPC classification number: A61F2/1618 ,  A61F2/164

Abstract: A first region is a circular region located at the centermost position. A first refractive power is uniformly added to the first region regardless of the distance from an axis of a lens part. A second region is a ring-like region located outside and adjacent to the first region. In the second region, a refractive power is increased or decreased from the first refractive power as the distance from the axis becomes larger. An outer region is a ring-like region located outside the second region. A reference refractive power for focusing on a far point is added to the outer region. An MTF curve at spatial frequency of 50 lp/mm relating to light passing through a region having a radius of 1.5 mm around the axis has one maximal value and no minimal value in a range of a defocusing value of −0.5 D to 0.5 D.

公开(公告)号：US12048482B2

公开(公告)日：2024-07-30

申请号：US17319308

申请日：2021-05-13

Applicant: NIDEK CO., LTD.

Inventor： Toru Arikawa

IPC: A61B3/00 ,  A61B3/10 ,  A61B3/15 ,  G06V40/19 ,  A61B5/00 ,  A61B5/11

CPC classification number: A61B3/0083 ,  A61B3/0025 ,  A61B3/10 ,  A61B3/152 ,  G06V40/19 ,  A61B5/0077 ,  A61B5/1103

Abstract: An ophthalmic apparatus for examining an examinee's eye, comprising a face support member to support an examinee's face, a human detection member to detect whether or not the face is supported by the face support member, a notification member to give an announcement to an examinee or an examiner, and a control member to control the notification member based on a detection result of the human detection member.

公开(公告)号：US20240251158A1

公开(公告)日：2024-07-25

申请号：US18593472

申请日：2024-03-01

Applicant: NIDEK CO., LTD.

Inventor： Naoto HONDA

IPC: H04N23/60 ,  A61B3/12 ,  A61B3/14 ,  G06T7/00 ,  G16H50/20 ,  H04N23/611 ,  H04N23/66 ,  H04N23/667

CPC classification number: H04N23/64 ,  A61B3/12 ,  A61B3/14 ,  G06T7/0012 ,  G16H50/20 ,  H04N23/611 ,  H04N23/66 ,  H04N23/667 ,  G06T2207/30041

Abstract: A control method includes: an instruction step of transmitting an instruction to an ophthalmological imaging device to execute an imaging-related operation; an acquisition step of acquiring, from the ophthalmology imaging device, a subject's eye image taken in accordance with the instruction; and a diagnosis support step of outputting diagnosis support information for the subject's eye image. The instruction step further includes generating the instruction to meet a specification of an API (Application Programming Interface) or an SDK (Software Development Kit) as a software interface.

公开(公告)号：US20240221160A1

公开(公告)日：2024-07-04

申请号：US18603365

申请日：2024-03-13

Applicant: NIDEK CO., LTD.

Inventor： Ryosuke SHIBA ,  Sohei MIYAZAKI ,  Yusuke SAKASHITA ,  Yoshiki KUMAGAI ,  Naoki TAKENO

IPC: G06T7/00 ,  A61B3/10 ,  G06T5/50

CPC classification number: G06T7/0012 ,  A61B3/102 ,  G06T5/50 ,  G06T2207/30041

Abstract: In this invention, a control unit in an ophthalmic image processing device acquires an ophthalmic image captured by an ophthalmic image capture device (S11). The control unit, by inputting the ophthalmic image into a mathematical model that has been trained by a machine-learning algorithm, acquires a probability distribution in which the random variables are the coordinates at which a specific site and/or a specific boundary of a tissue is present within a region of the ophthalmic image (S14). On the basis of the acquired probability distribution, the control unit detects the specific boundary and/or the specific site (S16, S24).

公开(公告)号：US11992972B2

公开(公告)日：2024-05-28

申请号：US16220765

申请日：2018-12-14

Applicant: NIDEK CO., LTD.

Inventor： Yuji Kanda ,  Kyoji Takeichi ,  Hirohisa Mizuno

IPC: B28D7/00 ,  B23B41/00 ,  B24B9/14 ,  B24B13/01 ,  B26F1/16 ,  B28D1/14 ,  B28D7/04 ,  G02C7/02 ,  G02C13/00

CPC classification number: B28D7/005 ,  B23B41/00 ,  B24B9/14 ,  B24B9/148 ,  B24B13/01 ,  B26F1/16 ,  B28D1/143 ,  B28D7/043 ,  G02C7/024 ,  G02C13/003 ,  G02C13/005

Abstract: A spectacle lens processing device includes a drilling tool and a processor. The processor acquires a position of a hole formed in a lens and a pantoscopic angle. The pantoscopic angle is an angle in a vertical plane between a visual axis of a user and an optical axis of the lens when the user wears spectacles in which the lens after processing is mounted and faces forward. The processor determines, based on the acquired pantoscopic angle, a relative angle between the drilling tool and the lens when the hole is formed in the lens in the position of the hole.

公开(公告)号：US11961229B2

公开(公告)日：2024-04-16

申请号：US17265367

申请日：2019-04-15

Applicant: NIDEK CO., LTD.

Inventor： Ryosuke Shiba ,  Sohei Miyazaki ,  Yusuke Sakashita ,  Yoshiki Kumagai ,  Naoki Takeno

IPC: G06T7/00 ,  A61B3/10 ,  G06T5/50

CPC classification number: G06T7/0012 ,  A61B3/102 ,  G06T5/50 ,  G06T2207/30041

Abstract: In this invention, a control unit in an ophthalmic image processing device acquires an ophthalmic image captured by an ophthalmic image capture device (S11). The control unit, by inputting the ophthalmic image into a mathematical model that has been trained by a machine-learning algorithm, acquires a probability distribution in which the random variables are the coordinates at which a specific site and/or a specific boundary of a tissue is present within a region of the ophthalmic image (S14). On the basis of the acquired probability distribution, the control unit detects the specific boundary and/or the specific site (S16, S24).

公开(公告)号：US20240108215A1

公开(公告)日：2024-04-04

申请号：US18477084

申请日：2023-09-28

Applicant: NIDEK CO., LTD.

Inventor： Ryosuke SHIBA ,  Hirofumi YOGO ,  Yukihiro HIGUCHI

IPC: A61B3/10 ,  A61B3/14 ,  G06T5/00 ,  G06T7/00

CPC classification number: A61B3/102 ,  A61B3/14 ,  G06T5/002 ,  G06T7/0012 ,  G06T2207/30041

Abstract: An OCT device includes a controller configured to: acquire OCT data of a tissue of a subject in a depth direction that is generated by processing interference signal detected by a light receiving element; and perform a correction process to reduce an effect by a noise floor in the OCT data using a plurality of correction amounts each of which is set in accordance with depth at a corresponding data acquisition position. Strength of the noise floor varies depending on the depth of the data acquisition position.

公开(公告)号：US20240032786A1

公开(公告)日：2024-02-01

申请号：US18361273

申请日：2023-07-28

Applicant: NIDEK CO., LTD.

Inventor： Kenji Aoki ,  Koji Hamaguchi ,  Kenji Nakamura ,  Hiroyuki Umano ,  Yuuto Yoshimura

IPC: A61B3/00

CPC classification number: A61B3/0075

Abstract: A controller of an ophthalmic apparatus finely drives and roughly drives a drive unit of an optometry unit. In a case where a tilt operation of tilting the operation stick within a predetermined range is detected by an operation detection unit, the controller finely drives the drive unit by controlling the drive unit in response to the detected tilt operation, and finely changes a position of the optometry unit. In a case where at least one of a tilt operation of tilting the operation stick over a predetermined range and an operation of a rough movement operation unit is detected by the operation detection unit, the controller roughly drives the drive unit by controlling the drive unit in response to the detected operation, and roughly changes the position of the optometry unit.

公开(公告)号：US11877798B2

公开(公告)日：2024-01-23

申请号：US17035910

申请日：2020-09-29

Applicant: NIDEK CO., LTD.

Inventor： Koichi Ito

IPC: A61B3/10 ,  A61B3/00

CPC classification number: A61B3/102 ,  A61B3/0008 ,  A61B3/0025 ,  A61B3/0058

Abstract: An ophthalmologic imaging apparatus having an OCT optical system for acquiring OCT data of a tissue of a subject eye based on a spectral interference signal of measurement light emitted to the tissue and reference light. The apparatus further has a second optical system for acquiring a front image of the tissue; an optical element having asymmetry and arranged on a common optical path of the OCT optical system and the second optical system; and an arithmetic controller that associates an OCT data acquisition position with coordinates of the front image while taking at least a difference in distortion caused by the optical element between the OCT optical system and the second optical system into consideration.