公开(公告)号：US20200005438A1

公开(公告)日：2020-01-02

申请号：US16023765

申请日：2018-06-29

Applicant: TOPCON CORPORATION

Inventor： Naoki MORIKAWA

IPC: G06T5/00 ,  G06T5/50 ,  G06T11/00

Abstract: Systems and methods are described for colorizing a point cloud comprising a set of point cloud data points associated with a particular object using a plurality of candidate images. For each respective data point in the set of point cloud data points, an image is selected, from a subset of the plurality of candidate images that include an un-occluded point of the particular object corresponding to the respective data point, that has a shortest subject distance to the un-occluded point of the particular object. The respective data point is colorized based on a color in the selected image of the un-occluded point of the particular object corresponding to the respective data point.

公开(公告)号：US20190302233A1

公开(公告)日：2019-10-03

申请号：US16365523

申请日：2019-03-26

Applicant: TOPCON CORPORATION

Inventor： Nobuyuki NISHITA ,  Takashi TAKAHASHI ,  Tatsuya KOJIMA ,  Saki HORITA

IPC: G01S7/481 ,  G01S17/10 ,  G02B26/00

Abstract: An electro-optical distance meter includes a light source configured to emit light for distance measurement, a detector configured to receive the light and generate a distance measurement signal, a calculator configured to measure the distance from the distance measurement signal, an external optical path configured to guide the light from the light source to a target as measurement light, an internal optical path configured to guide the light from the light source directly to the detector as reference light, and a liquid shutter that can select one of the external and internal optical paths as the optical path through which the light from the light source travels by switching a region of light-blocking liquid.

公开(公告)号：US20190298168A1

公开(公告)日：2019-10-03

申请号：US16289679

申请日：2019-03-01

Applicant: TOPCON CORPORATION

Inventor： Yoko TATARA ,  Michiko NAKANISHI ,  Shunichi MORISHIMA

IPC: A61B3/103 ,  A61B3/14 ,  A61B3/10 ,  A61B3/12 ,  A61B3/00

Abstract: An ophthalmologic apparatus includes an objective lens, a refractive power measurement optical system, an inspection optical system, and a corneal shape measurement optical system. The refractive power measurement optical system projects light onto a subject's eye via the objective lens and detects returning light from the subject's eye. The inspection optical system includes an optical scanner. The inspection optical system deflects light from a light source, projects the light deflected by the optical scanner onto the subject's eye via the objective lens, and detects returning light from the subject's eye. The corneal shape measurement optical system projects an arc-like or circumferential measurement pattern from an outer edge side of the objective lens onto the subject's eye and detects returning light from a cornea of the subject's eye. When a working distance is WD, a distance from a corneal apex of the subject's eye to a pupil of the subject's eye is d1, a distance from the pupil to a fundus of the subject's eye is d2, and a scan range by the optical scanner is SA square, a diameter of the objective lens is greater than or equal to ((WD+d1)×SA/d2).

公开(公告)号：USD859185S1

公开(公告)日：2019-09-10

申请号：US35505354

申请日：2018-01-22

Applicant: TOPCON CORPORATION

Designer： Mitsuo Ishii

公开(公告)号：US20190227173A1

公开(公告)日：2019-07-25

申请号：US16238708

申请日：2019-01-03

Applicant: TOPCON CORPORATION

Inventor： Nobuyuki NISHITA

IPC: G01S17/89 ,  G01C3/08 ,  G01S17/42 ,  G01S7/48 ,  G01S7/481

Abstract: A technique is provided to more easily measure a distance of a target from a ground surface or a ceiling surface. A surveying device has a laser scanner part and a total station in a unitary manner. The surveying device includes a TS functional part, a laser scanner part, and a distance calculator. The TS functional part positions a reflective prism by using laser light. The laser scanner part performs laser scanning of a ground surface along a vertical plane containing the reflective prism and an optical axis for the laser positioning to obtain a laser scanned point cloud. The distance calculator calculates a distance between the ground surface and the reflective prism on the basis of one or multiple points, which are extracted from the laser scanned point cloud and in proximity to a straight line connecting the reflective prism and a specific plane.

公开(公告)号：US20190206054A1

公开(公告)日：2019-07-04

申请号：US16212027

申请日：2018-12-06

Applicant: Topcon Corporation

Inventor： Zaixing Mao ,  Zhenguo Wang ,  Kinpui Chan ,  Jonathan Liu ,  Jongsik Kim

IPC: G06T7/00 ,  G06T7/73 ,  G06T11/00

CPC classification number: G06T7/0014 ,  A61B3/102 ,  A61B3/12 ,  G06K9/4628 ,  G06K9/627 ,  G06K2209/05 ,  G06T7/0012 ,  G06T7/73 ,  G06T11/008 ,  G06T2207/10101 ,  G06T2207/20081 ,  G06T2207/30041

Abstract: A multimodal imaging system and method is capable of taking fundus images, automatically identifying regions of interest (ROIs) of the eye from the fundus images, and performing OCT imaging in the identified ROIs, where the OCT images can provide clinically relevant information for screening purposes. By automatically identifying the ROIs, expert intervention is not required to perform specialized OCT imaging and thus, such imaging and analysis can be provided at more facilities and for more subjects for a lower cost.

公开(公告)号：US20190170861A1

公开(公告)日：2019-06-06

申请号：US16202322

申请日：2018-11-28

Applicant: TOPCON Corporation

Inventor： Naoto Takahashi ,  Yasushi Tanaka

IPC: G01S7/481 ,  G01S17/42

Abstract: Provided is a surveying instrument comprises a total station, a mounting base which is fixed on an upper surface of the total station at three points, and a two-dimensional laser scanner which is fixed on an upper surface of the mounting base at three points, wherein the total station is configured to perform a three-dimensional measurement of a measuring point by a first distance measuring light, wherein the two-dimensional laser scanner is configured to acquire point cloud data along a scanning line by a second distance measuring light.

公开(公告)号：US20190162853A1

公开(公告)日：2019-05-30

申请号：US16195988

申请日：2018-11-20

Applicant: TOPCON Corporation

Inventor： Kaoru Kumagai ,  Ken-ichiro Yoshino

IPC: G01S17/42 ,  G01S7/481

Abstract: A surveying instrument comprises a first measuring component having a control module and a second measuring component, wherein the control module acquires point cloud data of a whole circumference in a room with the use of the second measuring component in accordance with each installation point, makes the first measuring component to measure a predetermined position in the room, prepares outer shape data of a same height and a same shape in accordance with each installation point based on a measurement result of the first measuring component or the second measuring component, performs a shape matching of each outer shape data, and registers each point cloud data based on a movement amount and a rotation amount at the time of performing the shape matching.

公开(公告)号：US10258234B2

公开(公告)日：2019-04-16

申请号：US15289291

申请日：2016-10-10

Applicant: TOPCON CORPORATION

Inventor： Tomohiro Sakurada

IPC: A61B3/14 ,  A61B3/15 ,  A61B3/00 ,  A61B3/103 ,  A61B3/117

Abstract: According to one embodiment, an ophthalmologic apparatus includes an optical system, a support, a drive unit, an alignment optical system, two or more imaging units, an analyzer, and a controller. The optical system acquires data of an eye. The support is configured to support the face of a subject. The drive unit moves the optical system and the support relative to each other. The alignment optical system projects an indicator for performing alignment of the optical system with respect to the eye onto the anterior segment of the eye. The imaging units photograph the anterior segment of the eye, onto which the indicator is being projected, substantially simultaneously from different directions. The analyzer analyzes two or more photography images captured substantially simultaneously by the imaging units to specify the position of the eye. The controller controls the drive unit based on the position specified by the analyzer.

公开(公告)号：US20190094106A1

公开(公告)日：2019-03-28

申请号：US16139101

申请日：2018-09-24

Applicant: TOPCON CORPORATION

Inventor： Makoto SAIKA

IPC: G01M11/02 ,  G02B26/10

Abstract: A lens characteristic evaluation device includes: a scanning optical system configured to scan a surface of a test lens with a linear luminous flux; a Hartmann plate provided on a side opposite to the scanning optical system with respect to the test lens and having a plurality of two-dimensionally arranged pinholes, the Hartmann plate being configured to transmit the linear luminous flux which has passed through the test lens and radiated on the pinholes by the scanning performed by the scanning optical system; a screen on which the linear luminous flux having passed through the Hartmann plate is projected; and a photographing optical system provided on a side opposite to the Hartmann plate with respect to the screen and configured to photograph the screen while the scanning with the linear luminous flux is being performed by the scanning optical system.