Patents Assigned to Topcon Corporation
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Patent number: 11617505Abstract: In an ophthalmic system of some embodiments, ophthalmic imaging apparatuses include slit lamp microscopes, and information processing system is connected to each ophthalmic imaging apparatus via a communication path. Each ophthalmic imaging apparatus is configured to acquire a three dimensional image by photographing a subject's eye, and transmit the three dimensional image to the information processing system. The information processing system is configured to receive the three dimensional image, store three dimensional images received, perform machine learning and/or data mining based on the three dimensional images, store knowledge acquired by the machine learning and/or data mining, and generate diagnosis support information by performing inference based on a three dimensional image of a subject's eye transmitted from one of the slit lamp microscopes knowledge stored in the knowledge storage.Type: GrantFiled: February 7, 2018Date of Patent: April 4, 2023Assignee: TOPCON CORPORATIONInventors: Hisashi Tsukada, Yasufumi Fukuma
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Publication number: 20230100796Abstract: A target support tool includes: a base member including a first arm and a second arm connectable to each other to form a bent therebetween; a magnetic support part at least on the first arm; and a retroreflector at the bent of the base member.Type: ApplicationFiled: September 27, 2022Publication date: March 30, 2023Applicant: TOPCON CORPORATIONInventors: Nobuyuki NISHITA, Toshio YAMADA, Kunpei KOMAGAMINE, Noriyasu KIRYUU, Ryosuke JINNOUCHI
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Publication number: 20230094618Abstract: A technique for enabling efficient surveying operation that uses a light-reflecting target is provided. A surveying apparatus is configured to survey a reflecting prism and includes a controller, a surface calculator, and a position calculator. The controller performs positioning on three or more points on the set-up surface on which the reflecting prism is set up, by using laser light. The surface calculator calculates a plane of the set-up surface based on the positioning data of the three or more points in a case in which the position of the reflecting prism is surrounded by the three or more points in terms of a horizontal plane. The position calculator calculates a point of intersection of the plane and a straight line from the position of the reflecting prism to the plane, as a position on the set-up surface, at which the reflecting prism is set up.Type: ApplicationFiled: September 19, 2022Publication date: March 30, 2023Applicant: TOPCON CORPORATIONInventor: You SASAKI
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Patent number: 11614415Abstract: A non-destructive inspection system includes: a neutron emission unit 12 capable of emitting neutrons pulsed; a neutron detector capable of detecting the neutrons emitted from the neutron emission unit and penetrating through an inspection object; a storage unit storing attenuation information indicating a relationship between a material of the inspection object and attenuation of the neutrons; and a calculation unit capable of calculating distance information indicating a position of a specific portion in the inspection object in accordance with time change information which is information on a change over time in an amount of the neutrons detected by the neutron detector. The calculation unit is capable of generating information related to an amount of the specific portion from information based on the amount of the neutrons according to the time change information, using the distance information and the attenuation information.Type: GrantFiled: February 27, 2020Date of Patent: March 28, 2023Assignees: Topcon Corporation, RIKENInventors: Shigenori Nagano, Satoru Ishiguro, Yoshie Otake, Hideyuki Sunaga, Yuichi Yoshimura, Koji Ikado
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Patent number: 11614321Abstract: An interferometric method of identifying the thickness of an object that is too thin to be resolved by a Fourier transform of the interference signal includes applying a harmonic frequency modulation to an envelope of the interference signal. Where the object is a tear film, this method may be utilized to determine a thickness of the lipid layer of the tear film.Type: GrantFiled: March 25, 2020Date of Patent: March 28, 2023Assignee: TOPCON CORPORATIONInventors: Jongsik Kim, Bin Cao, Song Mei, Kinpui Chan, Zhenguo Wang, Zaixing Mao
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Patent number: 11609190Abstract: The non-destructive inspection method includes: a water absorbing or drying step of changing a water-content state of a test piece; a transmission image capturing step of irradiating, with a radiation, the test piece absorbed water or dried for a predetermined time in the water absorbing or drying step and capturing a transmission image created by visualizing the radiation transmitted through the test piece; and an evaluation step of evaluating the test piece on the basis of the water-content state of the test piece determined from the transmission image captured in the transmission image capturing step.Type: GrantFiled: September 27, 2018Date of Patent: March 21, 2023Assignees: Topcon Corporation, RIKENInventors: Yuichi Yoshimura, Maki Mizuta, Hideyuki Sunaga, Yoshie Otake
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Patent number: 11607123Abstract: An ophthalmologic apparatus includes: an optical system configured to acquire data of a subject's eye; a housing unit configured to house the optical system; and an attachment member including a holding member configured to hold a face of the subject movably in a state where a peripheral site of the subject's eye is in contact with the holding member, a passing part through which an optical axis of the optical system passes being formed in the holding member, and the attachment member configured to be detachable between the housing unit and the subject's eye.Type: GrantFiled: January 2, 2020Date of Patent: March 21, 2023Assignee: TOPCON CORPORATIONInventors: Tatsuo Yamaguchi, Michiko Nakanishi, Taichi Yuasa
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Publication number: 20230083021Abstract: Information of an instrument point of a surveying apparatus is more simply and easily acquired. Positioning data that is obtained by a first surveying apparatus in which exterior orientation parameters are known, and positioning data that is obtained by a second surveying apparatus in which exterior orientation parameters are unknown, are received. The first surveying apparatus and the second surveying apparatus are configured to obtain positioning data by measuring multiple positions of a UAV that is flying. A piece of positioning data is acquired from the positioning data of the UAV obtained by the first surveying apparatus and from the positioning data of the UAV obtained by the second surveying apparatus. These pieces of positioning data are in a correspondence relationship. The position of the second surveying apparatus is calculated based on the pieces of positioning data that are in the correspondence relationship, by a method of resection.Type: ApplicationFiled: September 2, 2022Publication date: March 16, 2023Applicant: TOPCON CORPORATIONInventor: You SASAKI
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Publication number: 20230080388Abstract: Scanning density of laser scanning is increased at low cost. A laser scanning apparatus includes a vertical rotation unit and a controller. The vertical rotation unit emits pulses of laser scanning light. The controller controls emission of pulses of the laser scanning light. Assuming that a symbol ānā is a natural number of one or more, the controller controls so that a position in a rotation direction of emission of pulses of the laser scanning light for (n+1)th rotation of the vertical rotation unit will be different from that for nth rotation of the vertical rotation unit.Type: ApplicationFiled: September 11, 2022Publication date: March 16, 2023Applicant: TOPCON CORPORATIONInventors: Hideki MORITA, Yoshikatsu TOKUDA
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Publication number: 20230081870Abstract: Scanning density of laser scanning is increased at low cost. A laser scanning apparatus includes a horizontal rotation unit and a controller. The horizontal rotation unit determines an area of laser scanning. The controller controls rotation of the horizontal rotation unit. The horizontal rotation unit is rotated while the laser scanning is performed, whereby scanning using laser scanning light is performed in a vertical angle direction at a predetermined interval. The controller makes the horizontal rotation unit repeatedly rotate multiple times in angular ranges that partially overlap one another, in order to perform the laser scanning multiple times on areas of the laser scanning that overlap one another. Start positions of the rotation of multiple times of the horizontal rotation unit are successively shifted by a predetermined amount. The predetermined amount of shifting corresponds to a distance shorter than the predetermined interval.Type: ApplicationFiled: September 12, 2022Publication date: March 16, 2023Applicant: TOPCON CORPORATIONInventors: Hideki MORITA, Yoshikatsu TOKUDA
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Patent number: 11604066Abstract: Provided is a communication management system of a surveying instrument, which enables management by a management server through a communication network even when the surveying instrument has no communication function with the management server through the communication network.Type: GrantFiled: May 8, 2020Date of Patent: March 14, 2023Assignee: TOPCON CORPORATIONInventor: Takeshi Kikuchi
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Publication number: 20230077077Abstract: A 3-dimensional measuring device includes: a light source unit; a projection optical system; a scanning mirror that is provided to be rotatable about a rotating shaft in a state of being inclined with respect to a shaft center of the rotating shaft to radiate a range-finding light within a plane crossing the rotating shaft in a rotary manner; a light-receiving optical system that receives a reflection range-finding light; a reference light optical system that is provided in a range outside a measuring range within a radiation range to receive and reflect the range-finding light as an internal reference light, the reference light optical system being capable of changing a light quantity of the internal reference light; and a light receiving element that receives the reflection range-finding light and the internal reference light.Type: ApplicationFiled: October 28, 2022Publication date: March 9, 2023Applicant: TOPCON CORPORATIONInventors: Yasushi TANAKA, Takaaki SAITO, Ken'ichiro YOSHINO, Mitsuru KANOKOGI
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Patent number: 11596300Abstract: An ophthalmologic information processing apparatus includes an analyzer, a storage unit, a region editing unit, and a display controller. The analyzer is configured to analyze data of a subject's eye optically acquired by projecting light onto the subject's eye, and to specify a lesion region in the subject's eye. The storage unit stores image data of the subject's eye. The region editing unit is configured to specify a changed region by changing the lesion region based on operation information corresponding to an operation content on an operating unit. The display controller is configured to cause an image of the subject's eye to be displayed on a display means based on the image data stored in the storage unit, and to cause a region corresponding to the changed region in the image of the subject's eye to be displayed so as to be identifiable.Type: GrantFiled: May 20, 2020Date of Patent: March 7, 2023Assignee: TOPCON CORPORATIONInventors: Kanichi Tokuda, Taiki Aimi
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Patent number: 11598636Abstract: A head-mounted display device has more convenient functions, which is usable in, e.g., surveying. An eyeglass display device includes a display unit and an operation content receiving unit. The display unit is configured to be placed on the head of a user and to be viewed by the user. The operation content receiving unit receives content of operation performed by the user. The display unit displays an image that shows a location relationship between positioning information of a target positioned by a location measuring device by using laser light and a predetermined placement planned location of the target. Multiple coordinate systems are prepared for a coordinate system of the displayed image. The operation content receiving unit receives designation of one coordinate system from among the multiple coordinate systems by the user.Type: GrantFiled: April 1, 2020Date of Patent: March 7, 2023Assignee: Topcon CorporationInventor: Mitsutaka Kagata
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Patent number: 11598874Abstract: There is provided a surveying instrument including a distance measuring light projecting module, a light receiving module, an optical axis deflector provided in a common portion of a distance measuring optical axis and a light receiving optical axis, a projecting direction detector which detects an optical axis deflection angle and a deflecting direction, a narrow angle image pickup module for a narrow angle of view, a distance measurement arithmetic module, and an arithmetic control module, wherein the arithmetic control module controls the optical axis deflector and the distance measurement arithmetic module, the distance measurement arithmetic module performs a distance measurement of a measuring point based on a transmission signal of a measuring light and a reception signal of a measuring light, the narrow angle image pickup module acquires a narrow angle image with reference to the distance measuring optical axis, a sighting is performed every different objects, and an acquisition of the narrow angle imType: GrantFiled: March 16, 2021Date of Patent: March 7, 2023Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Patent number: 11598854Abstract: A surveying system comprises an object to be measured having a retro-reflector and a surveying instrument main body for emitting a distance measuring light and performing a measurement based on a reflected distance measuring light, wherein the surveying instrument main body comprises a distance measuring light projecting module, a photodetector, a measuring unit, an optical axis deflector which has a reference optical axis and deflects a distance measuring optical axis, a projecting direction detecting module which detects a deflection angle and a deflection angle direction of the distance measuring optical axis, and an arithmetic control module, and wherein the arithmetic control module is configured to control the optical axis deflector, to perform a two-dimensional scan with the distance measuring light, to detect the deflection angle direction of the distance measuring light at a moment of detecting a photodetecting signal by the projecting direction detecting module, and to move an approximate center ofType: GrantFiled: April 30, 2019Date of Patent: March 7, 2023Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Kaoru Kumagai
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Patent number: 11598637Abstract: A surveying instrument comprises a distance measuring unit configured to measure a distance to an object to be measured, an optical axis deflector configured to deflect a distance measuring light, a measuring direction image pickup module configured to acquires an observation image and an arithmetic control module, wherein the arithmetic control module is configured to continuously cut out sighting images around a tracking point set in the observation image, to set a first cutout sighting image as a reference sighting image, to calculate a movement amount of the sighting image with respect to the reference sighting image by an image matching of the reference sighting image and the sighting image and to control the optical axis deflector based on a calculation result in such a manner that the tracking point is positioned at a center of the sighting image.Type: GrantFiled: September 10, 2019Date of Patent: March 7, 2023Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Publication number: 20230064228Abstract: One aspect example is a system for photogrammetry of a building. A memory stores design data and physical material data. The design data includes virtual material information on attributes for each of virtual materials of a virtual building. The physical material data is on the attributes for each of physical materials and generated based on measured data acquired from a physical building constructed on the basis of the design data. A material associating processor is configured to generate pairs of virtual and physical materials by determining an association between the virtual materials and the physical materials based on the virtual material information and the physical material data. An attribute associating processor is configured to determine an association between the virtual material information and the physical material data in accordance with the attributes for each of the pairs.Type: ApplicationFiled: January 20, 2021Publication date: March 2, 2023Applicants: Topcon Corporation, RIKENInventors: Satoshi WADA, Atsushi SHINJO, Takayo OGAWA, Takeharu MURAKAMI, Yasufumi FUKUMA, Zaxing MAO, Satoshi YANOBE, Toshio YAMADA
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Publication number: 20230069309Abstract: A tilt analysis method analyzing a tilt of a columnar object is disclosed. The tilt analysis method includes: acquiring a reference value on the basis of a first position of a reflector of a measurement target device attached to a column foot portion of the columnar object; acquiring, in response to an execution instruction, a column top value on the basis of a second position of the reflector of the measurement target device attached to a column top of the columnar object, the execution instruction being received by an input section and inputted via a column top value acquisition instruction section displayed on a display section of a terminal device; generating tilt information indicating in which direction the columnar object tilts based on the reference value and the column top value; and causing the display section to display the tilt information including graphic display.Type: ApplicationFiled: August 25, 2022Publication date: March 2, 2023Applicant: TOPCON CORPORATIONInventors: Yoshihiro NISHI, Kohei SATO, Motohiro MIYAJIMA, Toshio YAMADA, Takashi TANAKA
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Patent number: 11595558Abstract: A crack measuring apparatus includes distance-measuring units, an image pickup unit having pixels the positions of which are identified on an imaging device, an infrared image pickup unit having pixels the positions of which are identified on an imaging device and having sensitivity to infrared rays, driving units, angle-measuring units, and an arithmetic control unit, the arithmetic control unit searches for a cracked portion from a temperature difference in an infrared image by turning the infrared image pickup unit, captures an image of the cracked portion by the image pickup unit and identifies a position of the cracked portion from a density difference in the captured image, measures the position of the cracked portion by the distance-measuring units and the angle-measuring units, and acquires three-dimensional absolute coordinates of the cracked portion.Type: GrantFiled: August 11, 2020Date of Patent: February 28, 2023Assignee: TOPCON CORPORATIONInventors: Takashi Tanaka, Takeshi Kikuchi