公开(公告)号：US20190090732A1

公开(公告)日：2019-03-28

申请号：US16140873

申请日：2018-09-25

Applicant: TOPCON CORPORATION

Inventor： Wataru OYAGI ,  Naoki INUZUKA

IPC: A61B3/00 ,  A61B3/10 ,  A61B3/12

Abstract: An ophthalmic apparatus of an exemplary embodiment includes a storage and a difference processor. The storage stores a plurality of pieces of angiographic image data acquired by applying optical coherence tomography (OCT) angiography to the fundus of a subject's eye a plurality of times. The difference processor generates difference data between the first angiographic image data and the second angiographic image data both read out from the storage.

公开(公告)号：US10240976B2

公开(公告)日：2019-03-26

申请号：US15283804

申请日：2016-10-03

Applicant: TOPCON CORPORATION

Inventor： Hiroki Nagashima ,  Atsushi Shoji ,  Akira Oide

IPC: G01B11/24 ,  G01J1/42 ,  G01J1/44 ,  G01J1/02 ,  G01B11/00 ,  G01S17/42 ,  G01S7/481

Abstract: A technique for identifying a measurement planned position for electromagnetic waves in a three-dimensional space in a simple and easy manner is provided. A position of a measuring unit 200 that is carried by an operator 100 is measured by a position measuring device that is configured to measure a position by laser light. A positional relationship between the measured position and the position of a measurement planned position 601 is displayed on a terminal 300 that is carried by the operator 100. This display guides the operator 100, and the operator 100 identifies the measurement planned position 601 and measure illuminance thereat.

公开(公告)号：US20190063920A1

公开(公告)日：2019-02-28

申请号：US16103167

申请日：2018-08-14

Applicant: TOPCON Corporation

Inventor： Nobuyuki Nishita

IPC: G01C15/00 ,  G01S7/481 ,  G01S7/48 ,  G01S17/42

Abstract: A surveying system comprising a surveying instrument and a target having a pole and a prism which is provided on an axis of the pole, wherein the surveying instrument is configured to scan the distance measuring light with an optical center of the prism as a center by a circular scanning in a state where the prism is tracked, to calculate point cloud data of two points at which the pole intersects with the circular scanning, the axis of the pole and a tilt angle of the axis of the pole, a straight line on the pole which intersects with the circular scanning at two points, three-dimensional coordinates of two intersection points of the straight line and the circular scanning, and three-dimensional coordinates of the optical center of the prism, and to calculate three-dimensional coordinates of a measuring point based on the calculation result.

公开(公告)号：US10211387B2

公开(公告)日：2019-02-19

申请号：US15463920

申请日：2017-03-20

Applicant: TOPCON CORPORATION

Inventor： Kaoru Kumagai ,  Satoshi Yanobe ,  Tetsutaro Kouji

IPC: H02P23/20 ,  H01L41/04 ,  B06B1/06 ,  G01C3/08 ,  G01D5/347 ,  G01S3/786 ,  H01L41/09 ,  G01C15/00 ,  H02N2/14 ,  H02N2/16

Abstract: Provided is a method for controlling an ultrasonic motor to reduce noise sounding during low-speed rotation in a surveying instrument adopting the ultrasonic motor for a rotary shaft, and a surveying instrument for the same. In a method for controlling an ultrasonic motor according to an aspect of the present invention, in a low-speed rotation range of an ultrasonic motor, a ratio of an acceleration period as a time of application of the drive signal in a control cycle is controlled, and a time to start the acceleration period is randomly shifted for each control cycle. In a method for controlling an ultrasonic motor according to another aspect, a time to start the acceleration period is regularly shifted for each control cycle. In a method for controlling an ultrasonic motor according to still another aspect, second-half acceleration control and first-half acceleration control are alternately repeated.

公开(公告)号：US20180357778A1

公开(公告)日：2018-12-13

申请号：US16002126

申请日：2018-06-07

Applicant: TOPCON CORPORATION

Inventor： Takahiro KOMEICHI

IPC: G06T7/593

CPC classification number: G06T5/50 ,  G06T2207/10032 ,  G06T2207/20221

Abstract: Generation of an inappropriate image portion in an orthographic image due to occlusion is prevented. An image processing device includes an image data receiving part that receives image data of multiple photographed images taken by photographing an object from different positions, a coordinate designating part that receives designation of a specific position in the object, and an optimum-condition satisfying image selecting part that selects a photographed image that is taken from a direction in a specific range relative to the specific position, from among the multiple photographed images. The selected photographed image is used to obtain pixel information of the specific position.

公开(公告)号：USD835532S1

公开(公告)日：2018-12-11

申请号：US35503633

申请日：2017-03-03

Applicant: TOPCON CORPORATION

Designer： Mitsuo Ishii

公开(公告)号：US10151665B2

公开(公告)日：2018-12-11

申请号：US15924803

申请日：2018-03-19

Applicant: TOPCON CORPORATION

Inventor： Mariko Kobayashi

IPC: G01B9/00 ,  G01M11/02

Abstract: A lens meter includes a measurement optical system that projects measurement light to a test lens, and receives the measurement light which has passed through the test lens, a control part that calculates an optical characteristic value of the test lens based on the received measurement light, and controls the measurement optical system, a display part that displays the optical characteristic value by control of the control part, and an imaging part that obtains a lens image of the test lens, wherein the control part generates a mapping image showing distribution of the optical characteristic value of the test lens based on the optical characteristic value and position information of a measurement position of the optical characteristic value, generates a superimposed image in which the mapping image is superimposed onto the lens image, and displays the superimposed image on the display part.

公开(公告)号：US20180266818A1

公开(公告)日：2018-09-20

申请号：US15909461

申请日：2018-03-01

Applicant: TOPCON CORPORATION

Inventor： Ikuo ISHINABE ,  Fumio OHTOMO

IPC: G01C3/08 ,  G01B11/02 ,  G01S17/08

CPC classification number: G01C3/08 ,  G01B11/026 ,  G01C15/002 ,  G01S7/4814 ,  G01S7/4816 ,  G01S7/497 ,  G01S7/51 ,  G01S17/023 ,  G01S17/08 ,  G01S17/42

Abstract: The measurement device includes a light source that emits the distance measurement light, a focusing member that transmits the reflected distance measurement light and reflects reflected collimated light to form an image of the measurement target object, the reflected collimated light being reflected by the measurement target object and in a wavelength band different from a wavelength band of the reflected distance measurement light, a distance measurement light reception unit that receives the reflected distance measurement light that has been transmitted through the focusing member and the internal reference light, and a collimated light reception unit that receives the reflected collimated light reflected by the focusing member.

公开(公告)号：US20180259330A1

公开(公告)日：2018-09-13

申请号：US15913002

申请日：2018-03-06

Applicant: TOPCON CORPORATION

Inventor： Kaoru KUMAGAI ,  Nobuyuki NISHITA ,  Takeshi SASAKI

IPC: G01C11/04 ,  G06T7/70

CPC classification number: G01C11/04 ,  B64C39/024 ,  B64C2201/127 ,  B64D47/08 ,  G01C11/02 ,  G01C15/002 ,  G06T7/246 ,  G06T7/285 ,  G06T7/70 ,  G06T2207/10021 ,  G06T2207/10032 ,  G06T2207/30181 ,  G06T2207/30241 ,  G06T2207/30244

Abstract: A survey system includes a camera provided on a UAV and taking a plurality of images for photogrammetry. A surveying portion tracking the camera and continuously determining a position of the camera and a relative photographing position calculation portion calculates a relative photographing position of each image based on the plurality of images taken by the camera, and a traveling path calculation portion calculates a traveling path of the UAV from a survey result obtained by the surveying portion. A photogrammetry analysis portion associating a point group of the relative photographing positions calculated by the relative photographing position calculation portion with a flight path calculated by the flight path calculation portion, and generating data for photogrammetry.

公开(公告)号：US20180172843A1

公开(公告)日：2018-06-21

申请号：US15838754

申请日：2017-12-12

Applicant: Topcon Corporation

Inventor： Nobuyuki NISHITA ,  Yasuo TERASHIMA

IPC: G01S19/51 ,  B64C39/02 ,  G01C15/00 ,  G01S19/07 ,  G01S19/11 ,  G01C21/20

CPC classification number: G01S19/51 ,  B64C39/024 ,  G01C15/00 ,  G01C15/002 ,  G01C21/20 ,  G01S17/42 ,  G01S17/66 ,  G01S19/07 ,  G01S19/11 ,  G01S19/15 ,  G01S19/48

Abstract: A technique for more reliably capturing a lost unmanned aerial vehicle in tracking the unmanned aerial vehicle by a surveying device is provided. A UAV search controlling part configured to be used in a search for an unmanned aerial vehicle that flies along a predetermined flight path includes an estimating part and a search controlling part. The estimating part estimates, on the basis of location data of a surveying device that surveys a location of the unmanned aerial vehicle by using laser light and on the basis of the predetermined flight path, a direction of the unmanned aerial vehicle as seen from the surveying device at a specific time. The search controlling part controls to allow the surveying device to search for the unmanned aerial vehicle, on the basis of the estimated direction.