公开(公告)号：US20220192488A1

公开(公告)日：2022-06-23

申请号：US17692231

申请日：2022-03-11

Applicant: Topcon Corporation

Inventor： Toshihiro MINO ,  Jongsik KIM ,  Dawei LI ,  Zhenguo WANG ,  Kinpui CHAN

IPC: A61B3/117 ,  A61B3/14 ,  H04N5/235

Abstract: An ophthalmic apparatus includes an illumination optical system, an imaging optical system, and a controller. The illumination optical system is configured to generate illumination light using light from a light source, and to illuminate a changeable illumination region on a predetermined site of a subject's eye with the illumination light having a light intensity corresponding to a size of the illumination region. The imaging optical system is configured to guide returning light of the illumination light from the subject's eye to a light receiving surface of an image sensor. The controller is configured to control the image sensor to set an opening range so as to overlap an illumination range of the returning light on the light receiving surface corresponding to the illumination region and to capture a light receiving result obtained by a light receiving element in the set opening range.

公开(公告)号：US11363948B2

公开(公告)日：2022-06-21

申请号：US16691882

申请日：2019-11-22

Applicant: OSAKA UNIVERSITY ,  TOPCON CORPORATION

Inventor： Takashi Fujikado ,  Yoko Hirohara ,  Makoto Saika ,  Suguru Miyagawa

IPC: A61B3/103 ,  A61B3/00 ,  A61B3/10 ,  A61B3/18

Abstract: An ophthalmologic device includes: a visual target presenting unit configured to present a common visual target to be viewed with both subject's eyes; a presenting distance changing unit configured to change a presenting distance of the visual target presented by the visual target presenting unit from a predetermined far vision distance to a predetermined near vision distance; an ocular characteristic acquiring unit configured to objectively acquire an optical characteristic of the subject's eyes; an addition power adding unit configured to add the addition power to the both subject's eyes; and a control unit configured to cause the presenting distance changing unit to change the presenting distance and the ocular characteristic acquiring unit to continuously acquire the optical characteristic, in a state in which an addition power is added to the both subject's eyes by the addition power adding unit.

公开(公告)号：US11361481B2

公开(公告)日：2022-06-14

申请号：US16574453

申请日：2019-09-18

Applicant: Topcon Corporation

Inventor： Song Mei ,  Zaixing Mao ,  Ying Dong ,  Zhenguo Wang ,  Kinpui Chan

IPC: G06T11/00 ,  G06T7/11 ,  G06T5/20 ,  G06T7/00

Abstract: Shadows caused by opacities and obstructions (such as blood vessels) can block detection of structural information of objects below the shadow-causing structure, affecting visualization and analysis of those deeper structures. An image processing method for removing these shadows includes applying a low pass filter to an energy profile of an image to remove high frequency fluctuations in energy, thereby effectively recovering lower energy inside shadow regions and removing high frequency speckle. The image is then adjusted, for example by linear scaling, based on the filtered energy profile. Two dimensional filters may also be applied for volumes.

公开(公告)号：US20220156427A1

公开(公告)日：2022-05-19

申请号：US17511406

申请日：2021-10-26

Applicant: TOPCON CORPORATION

Inventor： Yuki SENOO ,  Masato OKA ,  Masaki KIUCHI ,  Nobuyuki NISHITA

IPC: G06F30/13 ,  G06F30/20

Abstract: Provided is construction management so that a final form of a structure is as designed. In the construction management, reading a design model of a structure from a design database, designing an initial construction model so that final form physical simulation results obtained by performing a physical simulation match the design model, extracting a construction completed part model, a calculating step partial physical simulation results obtained by performing the physical simulation for the construction completed part model, obtaining a measurement model from a measurement database, a calculating step an actual object difference by comparing the partial physical simulation results with the measurement model, and instructing construction details of a part to be constructed next and/or later of the initial construction model or an actual object of the structure based on the actual object difference, are performed.

公开(公告)号：US20220128489A1

公开(公告)日：2022-04-28

申请号：US17310845

申请日：2020-02-27

Applicant: Topcon Corporation ,  RIKEN

Inventor： Hisashi TSUKADA ,  Shigenori NAGANO ,  Yoshie OTAKE ,  Hideyuki SUNAGA ,  Yuichi YOSHIMURA ,  Koji IKADO

IPC: G01N23/20

Abstract: The neutron emission unit is configured to emit neutrons such that a center axis (Nh) of neutron emission intersects a center axis direction of collimators (23a to 23e). A calculation unit is capable of generating information about an inspection object in the center axis direction of the collimators, based on position information of the neutron detector and/or position information of the neutron emission unit, information about an angle (θ1) at which the center axis of the neutron emission intersects the center axis direction of the collimators, and a neutron amount detected by the neutron detector.

公开(公告)号：US11311189B2

公开(公告)日：2022-04-26

申请号：US16543625

申请日：2019-08-19

Applicant: TOPCON CORPORATION

Inventor： Ryoichi Hirose ,  Toshihiro Mino ,  Tatsuo Yamaguchi

IPC: A61B3/10 ,  A61B3/14 ,  A61B3/12 ,  A61B3/135

Abstract: An ophthalmic imaging apparatus of an exemplary aspect includes a data acquisition device, image constructing circuitry, and composing circuitry. The data acquisition device is configured to sequentially apply optical coherence tomography (OCT) scans to a plurality of regions different from each other of a fundus of a subject's eye in order and under a condition according to a fundus shape, to acquire a plurality of pieces of data corresponding to the plurality of regions. The image constructing circuitry is configured to construct an image from each of the plurality of pieces of data. The composing circuitry is configured to construct a composite image of a plurality of images constructed from the plurality of pieces of data by the image constructing circuitry.

公开(公告)号：US11307031B2

公开(公告)日：2022-04-19

申请号：US16168924

申请日：2018-10-24

Applicant: TOPCON CORPORATION

Inventor： You Sasaki ,  Yasushi Tanaka ,  Nobuyuki Nishita

IPC: G01S17/10 ,  G01S17/89 ,  G01S7/48 ,  G01C15/00 ,  G02B23/10 ,  G01S7/51 ,  G01S7/481 ,  G01S17/87 ,  G01C3/08 ,  G01S7/497 ,  G01C1/02 ,  G01S17/42

Abstract: A technique is provided to enable check of a calibrated condition of a total station (TS) having a laser scanner in a surveying site. The TS includes an optical system for sighting an object, a laser positioning part that irradiates the object with laser light via the optical system to position the object, and a plane crossing location identifying part that identifies a crossing location of multiple planes constituting a three-dimensional structure as a first location, on the basis of the positioning result from the laser positioning part. The TS also includes a laser scanner that performs laser scanning in an area containing the crossing location, a plane crossing location calculator that calculates the crossing location as a second location on the basis of laser scanning data from the laser scanner, and a comparing part that compares the first location and the second location with each other.

公开(公告)号：US20220110517A1

公开(公告)日：2022-04-14

申请号：US17069753

申请日：2020-10-13

Applicant: Topcon Corporation

Inventor： John Thomas TREFETHEN ,  Thomas NUZZO ,  Akira MIZUNO ,  Shigeru OKIKAWA ,  Yuta SUZUKI

IPC: A61B3/00 ,  A61B3/028 ,  A61B3/103

Abstract: An ophthalmologic apparatus is provided, which is capable of more securely supporting left and right cheekbone portions of a subject in accordance with the size and shape of the subject's face allowing the subject to respond orally where the positions of the subject's eyes are fixed. The ophthalmologic apparatus includes a forehead contact portion coming into contact with the forehead of the subject, and a cheek contact portion coming into contact with the cheeks of the subject. The cheek contact portion includes a first cheek-contact body that supports one of the cheeks of the subject, a second cheek-contact body that supports the other one of the cheeks of the subject, and an opening/closing mechanism portion that opens and closes in a horizontal direction the first cheek-contact body and the second cheek-contact body in a direction of coming close to each other and a direction of separating from each other

公开(公告)号：US20220095916A1

公开(公告)日：2022-03-31

申请号：US17481612

申请日：2021-09-22

Applicant: TOPCON CORPORATION

Inventor： Yasuhisa ISHIKURA ,  Wataru UMEJI

IPC: A61B3/16

Abstract: An ophthalmologic apparatus that measures a value of intraocular pressure of an examinee's eye, based on a state of deformation of a cornea in applanation due to air blowing includes an air blowing unit that puffs air to the cornea and a control unit that controls an operation of the air blowing unit, wherein the control unit has a preliminary puffing mode in which preliminary puffing is executed such that the air blowing unit puffs the air in non-measurement of the value of intraocular pressure.

公开(公告)号：US20220092810A1

公开(公告)日：2022-03-24

申请号：US17448208

申请日：2021-09-21

Applicant: Topcon Corporation

Inventor： Takeshi SASAKI

IPC: G06T7/579 ,  G01S17/89 ,  G01S7/51 ,  G06T1/00 ,  G06T19/00

Abstract: An object of the present invention is to provide a guidance system and the like which are capable of showing an object from a point of view of an operator in an accurate manner when displaying the object on a display portion. A guidance system includes: a survey apparatus that surveys an object from a point of view that differs from a point of view of a user; and a display portion that displays the object from the point of view of the user, wherein the survey apparatus is configured to perform ranging by irradiating the object with ranging light and receiving reflected ranging light from the object, and survey information of the object having been surveyed by the survey apparatus is changed to the point of view of the user and displayed on the display portion.