Patents Assigned to Kabushiki Kaisha Topcon
  • Publication number: 20170042419
    Abstract: An ophthalmic surgical apparatus includes an observation optical system, an illumination optical system, an interference optical system, and an image forming unit. The observation optical system is configured to observe an eye through an objective lens. The illumination optical system is configured to illuminate the eye through the objective lens. The interference optical system includes a reference optical path and a signal optical path which leads to the eye through the deflecting member located between the objective lens and the eye, and is configured to detect interference light based on light having passed through the signal optical path and returning from the eye and the reference light having passed through the reference optical path. The image forming unit forms an image of the eye based on a detection result obtained by the interference optical system.
    Type: Application
    Filed: February 23, 2015
    Publication date: February 16, 2017
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Michiko NAKANISHI, Takefumi HAYASHI, Hiroshi AKIYAMA, Masahiro AKIBA, Makoto FUJINO
  • Patent number: 9571794
    Abstract: A surveying apparatus comprises an observation optical system having an image sensor for outputting a digital image signal and a zoom optical system, a reference-pattern projection optical system for making a reference pattern enter the observation optical system in an infinity state and for forming an image on the image sensor, a rotation mechanism capable of rotating in two directions, a horizontal angle detector and a vertical angle detector for detecting a horizontal angle and a vertical angle of rotation in the two directions of the rotation mechanism, and an arithmetic control unit. The arithmetic control unit measures the horizontal angle and the vertical angle of a sighting point based on detection results of the horizontal angle detector and the vertical angle detector and based on a difference between the reference pattern on the image sensor and the sighting point of the observation optical system.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: February 14, 2017
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Kazuki Osaragi, Tetsuji Anai, Fumio Ohtomo
  • Patent number: 9560964
    Abstract: Distribution information of examination results of eye fundus is displayed. An imaging part carries out movie imaging of fundus. A tomographic image forming part comprises an optical system that generates and detects interference light by superposing signal light from fundus on reference light and a scanner that scans fundus with signal light, and forms tomographic image of fundus based on detection results of interference light acquired by the scanning. A setting part sets scan-target location of signal light on distribution information. A specifying part specifies image region in fundus image obtained by the movie imaging that corresponds to the scan-target location. A controller controls the scanner based on the specified image region to carry out scanning of signal light. The tomographic image forming part forms tomographic image from the detection results of interference light acquired by the scanning of signal light based on the control.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: February 7, 2017
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Atsushi Kubota, Yusuke Ono, Shigetaka Tsuri
  • Publication number: 20170027439
    Abstract: An embodiment provides an optical image measuring apparatus capable of acquiring images with high lateral resolution and global sharpness. An optical image measuring apparatus of an embodiment includes an optical system, image forming part, controller and composite-cross-sectional-image forming part. The optical system includes a scanner that changes an irradiation position of signal light on an object and a focus position changing part that changes a focus position of the signal light. The optical system detects interference light of returned light of the respective signal light from the object and reference light. The image forming part forms a cross-sectional image based on detection results of a plurality of interference light corresponding to a plurality of irradiation positions of the signal light. The controller controls the optical system to irradiate the signal light onto the plurality of irradiation positions repeatedly while changing the focus position.
    Type: Application
    Filed: October 17, 2016
    Publication date: February 2, 2017
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Hitoshi SHIMIZU, Takashi FUJIMURA
  • Patent number: 9560288
    Abstract: An omnidirectional camera having a camera for acquiring a digital image, an image data processing device for compressing a signal output from the camera and an external memory is disclosed. In the omnidirectional camera, a writing changeover unit accumulates signals output from a signal processing unit in one of a set of first internal memories until data is accumulated to a predetermined amount. When the data is accumulated to a predetermined amount, the writing changeover unit changes destinations and accumulates signals output from the signal processing unit in the other of the set of first internal memories. The signal is output to a data converting unit from the first internal memory where accumulation reaches the predetermined amount, and the data conversion unit compresses and converts an inputted signal to an image signal and the image signal is inputted to the external memory by an input/output control unit.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: January 31, 2017
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Takeshi Ishida, Masahiro Saito
  • Patent number: 9545201
    Abstract: A fundus observation apparatus according to an embodiment comprises: a photographing part that photographs the fundus of a subject eye; a forming part comprising an optical system that irradiates signal light onto the fundus and interferes reflected light of the signal light from the fundus with reference light via a reference path and detects the resulting interference light, wherein the forming part forms a tomographic image of the fundus based on the detection result; and an analyzing part that analyzes a photographed image of the fundus from the photographing part to delete predetermined low-frequency components from the photographed image.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: January 17, 2017
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Masahiro Akiba, Atsushi Kubota
  • Patent number: 9540786
    Abstract: The invention provides a construction machine control system comprising a working tool (7), a working arm (5) for supporting the working tool and for operating the working tool as required, a machine body (2) for supporting the working arm and for being rotatable, a rotating direction acquiring unit (13, 14) provided on the machine body, a control unit having a storage unit and a display unit, wherein the working arm is configured by two or more links with length already known respectively which are connected in a bendable manner, wherein there are further provided a two-axis tilt sensor on the machine body for detecting a horizontal position, a working arm tilt sensor for detecting a tilting of each links of the working arm, and a working tool tilt sensor for detecting a tilting of the working tool, wherein the control unit displays a guidance screen on the display unit based on a working data stored in the storage unit and where a working position and a design gradient are set, based on a direction of the m
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: January 10, 2017
    Assignee: Kabushiki Kaisha TOPCON
    Inventor: Takashi Ogawa
  • Patent number: 9544575
    Abstract: An image acquiring device comprises a first camera 14 for acquiring video images, consisting of frame images continuous in time series, a second camera 15 being in a known relation with the first camera and used for acquiring two or more optical spectral images of an object to be measured, and an image pickup control device 21, and in the image acquiring device, the image pickup control device is configured to extract two or more feature points from one of the frame images, to sequentially specify the feature points in the frame images continuous in time series, to perform image matching between the frame images regarding the frame images corresponding to the two or more optical spectral images based on the feature points, and to synthesize the two or more optical spectral images according to the condition obtained by the image matching.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: January 10, 2017
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Fumio Ohtomo, Hitoshi Otani, Masayuki Momiuchi, Kazuki Osaragi
  • Patent number: 9544476
    Abstract: An omnidirectional camera comprises a camera mounting frame of cylindrical hollow body, a plurality of horizontal camera units, each of which is provided on a horizontal plane orthogonal to a center line of the camera mounting frame and adapted to acquire an image in a horizontal direction. A vertical camera unit is provided so as to coincide with the center line of the camera mounting frame and adapted to acquire an image in a zenith direction. A ring-like GPS antenna is provided so as to surround the vertical camera unit.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: January 10, 2017
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Takeshi Ishida, Jun Sasagawa, Tomohiro Abe, Hirokazu Yamada, Tetsuya Akimoto
  • Patent number: 9541382
    Abstract: A rotation angle detecting apparatus comprises a bearing holder, a rotation shaft rotatably supported by the bearing holder, a shaft portion space formed in the rotation shaft, a bearing holder space formed in the bearing holder, an angle detection pattern in the shaft portion space, a reference pattern and an image sensor in the bearing holder space, an optical system which exists across the shaft portion space and the bearing holder space and forms a projection image of the angle detection pattern and a projection image of the reference pattern on the image sensor, a photodetection switching means for selectively projecting the projection images of the angle detection pattern and the reference pattern onto the image sensor, and an arithmetic device for calculating a rotation angle of the rotation shaft based on a deviation between the reference pattern and the angle detection pattern received by the image sensor.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: January 10, 2017
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai, Kazuki Osaragi
  • Patent number: 9541495
    Abstract: An image pickup device, which comprises an optical characteristics changing unit (15), an optical system (45) containing an objective lens (47) and for leading a light from the objective lens to the optical characteristics changing unit, and an image pickup element (52) for receiving a light via the optical characteristics changing unit, wherein the optical characteristics changing unit has two or more dividing units, and has a configuration where one of the dividing units is selectively disposed along an optical path, and the dividing unit has a first region to select a specific wavelength from the light coming from the optical system and a second region where optical characteristics of the light from the optical system are not changed.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: January 10, 2017
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Fumio Ohtomo, Hitoshi Otani, Masayuki Momiuchi, Kazuki Osaragi
  • Publication number: 20170003690
    Abstract: A wide area sensor system includes an unmanned airplane being switchable between an airplane mode for high speed flight and a VTOL mode for low speed flight, a state detection sensor provided in the unmanned airplane, the state detection sensor being driven to detect a state of a detection target, and an external control apparatus that controls flight of the unmanned airplane and driving of the state detection sensor. The external control apparatus performs high speed sensing by driving the state detection sensor while performing the high speed flight of the unmanned airplane in the airplane mode. The control apparatus performs low speed sensing by driving the state detection sensor while performing the low speed flight of the unmanned airplane in the VTOL mode.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 5, 2017
    Applicant: Kabushiki Kaisha TOPCON
    Inventor: Atsushi Tanahashi
  • Publication number: 20170001723
    Abstract: A site management system includes an unmanned airplane being switchable between an airplane mode for high speed flight and a VTOL mode for low speed flight, a working vehicle working in a civil construction site, a shape detection sensor provided in the unmanned airplane to detect a shape of the civil construction site, and an external control apparatus that controls flight of the unmanned airplane, driving of the working vehicle, and driving of the shape detection sensor. The external control apparatus moves the unmanned airplane to an observation area by performing the high speed flight. Further, the external control apparatus detects a shape of the observation area by driving the shape detection sensor while performing the high speed flight or by driving the shape detection sensor while performing low speed flight by switching from the airplane mode to the VTOL mode.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 5, 2017
    Applicant: Kabushiki Kaisha TOPCON
    Inventor: Atsushi Tanahashi
  • Publication number: 20160379365
    Abstract: A technique is disclosed for easily performing calibration of a camera by using a MMS. A calibration device for a camera that is configured to photograph the sun includes an in-image sun position identifying unit 115, a sun position estimating unit 113, and a camera attitude calculating unit 116. The in-image sun position identifying unit 115 identifies a position of the sun in an image that is photographed by the camera. The sun position estimating unit 113 estimates a position of the sun in the image based on orbital information of the sun. The camera attitude calculating unit 116 calculates attitude of the camera based on differences between identified positions and the estimated positions of the sun in the images.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 29, 2016
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: You SASAKI, Tadayuki Ito
  • Patent number: 9526412
    Abstract: Geographic atrophy of the eye can be detected and measured by imaging the eye at a depth greater than the retinal pigment epithelium (RPE) at a plurality of locations of the eye, for example, using optical coherence tomography (OCT); determining a ratio of the intensities of imaging signals of a retinal layer(s) with respect to the intensity of imaging signals of a sub-RPE layer(s) at each location; determining representative values based at least in part on the determined ratios; generating a map of the representative values; and identifying diseased areas from the map. Contours and binary maps may be generated based on the identified diseased areas. The size and shape of the identified areas may be analyzed and monitored over a period of time.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: December 27, 2016
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Qi Yang, Charles A. Reisman
  • Patent number: 9526416
    Abstract: An ophthalmologic apparatus which is capable of preferably executing position matching between an eye and optical system is provided. An ophthalmologic apparatus of an embodiment includes an examination optical system, supporting part, driver, two or more imaging parts, analyzer and controller. The examination optical system is used for an examination of the eye. The supporting part supports a face of a subject. The driver moves the examination optical system and the supporting part relatively and three-dimensionally. The two or more imaging parts substantially simultaneously photograph an anterior eye part of the eye from different directions. The analyzer obtains a three-dimensional position of the eye by analyzing two or more photograph images acquired by the two or more imaging parts substantially simultaneously. The controller controls the driver based on the three-dimensional position to relatively move the examination optical system and the supporting part.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: December 27, 2016
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Takashi Fujimura, Taisaku Kogawa, Ryuichi Morishima, Hiroaki Okada, Takefumi Hayashi
  • Patent number: 9526415
    Abstract: An ophthalmologic apparatus of an embodiment includes an examination part, a moving mechanism, an information obtaining part, and a controller. The examination part is configured to include an optical system for optically examining an eye. The moving mechanism is configured to move the optical system. The information obtaining part is configured to obtain information for carrying out position matching of the optical system to the eye. The controller is configured to carry out first control for the moving mechanism based on the information obtained by the information obtaining part to move the optical system, determine whether information optically obtained by the optical system after the first control is appropriate to the examination or not, and when it is determined that this information is not appropriate, carry out second control for the moving mechanism in response to a prescribed trigger to move the optical system.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: December 27, 2016
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Yasufumi Fukuma, Kanichi Tokuda, Taiki Aimi, Atsushi Kubota, Yusuke Ono
  • Patent number: 9523575
    Abstract: A survey apparatus includes a guide light emitting optical system emitting a fan-like visible laser light elongated in upward and downward directions as a guide light, a cylindrical part having a scanning optical system searching a corner reflector provided on a survey pole and a ranging optical system measuring a distance to the corner reflector, a driving part rotating the cylindrical part about a vertical axis in a horizontal direction and rotating the cylindrical part about a horizontal axis, and an angle measurement part measuring a direction of the cylindrical part. The guide light emitting optical system is rotated about the vertical axis in a horizontal direction integrally with the cylindrical part.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: December 20, 2016
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Minoru Chiba
  • Patent number: D777588
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: January 31, 2017
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Takeo Aoki, Mitsuo Ishii
  • Patent number: D778745
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: February 14, 2017
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventor: Mitsuo Ishii