Patent application number | Description | Published |
20100229409 | Surveying system - The present invention relates to a surveying system, comprising a rotary laser irradiation device | 09-16-2010 |
20110169948 | Electro-Optical Distance Measuring Device - An electro-optical distance measuring device having a photodetection unit comprising a plurality of pixels arranged in a predetermined arrangement is disclosed. A signal processing unit has a storage unit for storing the detection result in correspondence with each of the pixels, wherein the signal processing control unit sequentially changes a position of the division for every cycle wave at which the photodetection amount is detected and continues detections until a detected range becomes at least one cycle or more. The arithmetic processing unit calculates a waveform for at least one cycle stored in the storage unit for each pixel, obtains a phase difference of the waveform with respect to the irradiated distance measuring light, and calculates the distance based on the phase difference. | 07-14-2011 |
20110261368 | Laser Scanner - The invention provides a laser scanner | 10-27-2011 |
20120013917 | Measuring Device - The present invention provides a measuring device, comprising a light source unit | 01-19-2012 |
20120105824 | Laser Surveying Instrument - A laser surveying instrument comprising a light source unit having two or more light emission sources for emitting pulsed distance measuring lights with different wavelengths, a light projecting unit for projecting the pulsed distance measuring lights with the two or more wavelengths on an optical axis, and a deflection member provided on the optical axis, is disclosed. The deflection member has two or more reflection surfaces which reflect each wavelength of the pulsed distance measuring lights independently, thereby dividing the pulsed distance measuring lights for every wavelength, and deflecting each of the distance measuring lights toward an object to be measured. The instrument comprises a single photodetection element for receiving reflected distance measuring lights from the object to be measured. In the laser surveying instrument, a measurement of distance is performed for every pulsed distance measuring light based on a photodetection signal produced by the photodetection element. | 05-03-2012 |
20130003040 | Electronic Distance Measuring Method And Electronic Distance Measuring Instrument - An electronic distance measuring instrument comprises a pulsed light emitting light source, means for creating a distance measuring pulsed light and an internal reference pulsed light, a photodetector for detecting the pulsed lights, and a measuring unit for calculating a distance to an object to be measured based on a photodetection signal. The measuring unit performs coarse distance measurement based on difference of photodetection time between the internal reference pulsed light and the distance measuring pulsed light, carries out Fourier function transform on photodetection waveform of the pulsed lights respectively, separates the waveforms to a plurality of frequency components, obtains phase difference for each of the frequency components acquired, performs fine distance measurement based on time difference acquired from phase difference, and measures a distance to the object by adding a result of coarse distance measurement to a result of fine distance measurement. | 01-03-2013 |
20130107037 | Image Measuring System | 05-02-2013 |
20130155224 | Rotation Angle Detecting Apparatus And Surveying Instrument - 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. | 06-20-2013 |
20130155397 | Rotation Angle Detecting Apparatus And Surveying Instrument - A rotation angle detecting apparatus comprises a bearing holder, a rotation shaft rotatably supported by said bearing holder, a shaft portion space formed in said rotation shaft, a bearing holder space formed in said bearing holder, a first condenser lens in said shaft portion space and having an optical axis that coincides with a center line of said rotation shaft, a second condenser lens in said bearing holder space and on an extension of a center line of said rotation shaft, an angle detection pattern at a focal position of one of said first and said second condenser lens, and an image sensor at a focal position of the other of said condenser lens, wherein said image sensor detects a projection image of said angle detection pattern projected onto said image sensor, and a displacement of said projection image involved by the rotation of said rotation shaft is detected. | 06-20-2013 |
20130174432 | Attachment Device And Total Station - An attachment device | 07-11-2013 |
20130284909 | Rotation Angle Detecting Apparatus - A rotation angle detecting apparatus comprises a shaft portion space formed in a rotation shaft, a bearing holder space, a first condenser lens, a second condenser lens to face the first condenser lens, a detection pattern provided at a focal position of one of the first condenser lens and the second condenser lens, an image sensor provided at a focal position of the other of the first condenser lens and the second condenser lens, and an arithmetic unit for calculating an angle displacement of the rotation shaft. The arithmetic unit carries out a total circumferential scanning, extracts a frequency component, carries out a scanning of a reference designation pattern, and calculates the angle displacement of the rotation shaft based on a phase difference of the frequency component and the number of frequencies corresponding to a change in a position of the reference designation pattern. | 10-31-2013 |
20130321591 | Image Pickup Method And Photographing Device - A photographing device comprises an image pickup unit to acquire a moving image and a still image of an object, an image pickup control unit, an angle sensor, an image processing unit for extracting characteristic points from a first still image, tracking the characteristic points in the moving image, identifying the characteristic points in a newest image and selecting an orientation point common to the first still image and the newest image, a storage unit, a display unit, and an arithmetic unit. The arithmetic unit performs relative orientation between the first still image and the newest image based on the orientation point and on detection result of the angle sensor, obtains a distance H to the object and a distance B between points where the images have been photographed and performs guidance display where still images can be acquired sequentially when the B/H value reaches a predetermined value or higher. | 12-05-2013 |
20140111618 | Three-Dimensional Measuring Device and Three-Dimensional Measuring System - A three-dimensional measuring device includes a light source unit, a light projecting optical unit, a light receiving optical unit, a light receiving element, a scanning unit, an angle detector, an illumination light source unit, an image pickup unit and a control arithmetic unit. The control arithmetic unit comprises a distance data processing unit for controlling the scanning unit, for calculating a distance to the object to be measured based on a received light signal, and for calculating a three-dimensional data of the object based on a calculated distance and a detection signal from the angle detector, and an image data processing unit for acquiring an illuminated image and an unilluminated image, for acquiring a difference image based on both images, for detecting a retroreflective target based on the difference image and a detected intensity of a reflected light from the difference image, and for calculating a position of the target. | 04-24-2014 |
20140253689 | Measuring Instrument - A measuring instrument comprises an spherical camera ( | 09-11-2014 |
20140259709 | Surveying Instrument - The invention provides a surveying instrument ( | 09-18-2014 |
20140304995 | Surveying System - The invention provides a surveying system, which comprises an electronic level and staff devices belonging to either one of two or more groups, wherein the staff device has staffs with bar codes corresponding to groups, to which a staff belongs, and mobile station devices installed on the staffs, wherein the mobile station device has a mobile station display unit to display working data and a mobile station communication unit for performing wireless communication to and from the electronic level, wherein the electronic level has an image pickup unit for acquiring images within a range of working, a control device for extracting staff images from the images, for identifying as to which group the bar code pattern of the extracted staff image belongs and for determining three-dimensional position of the staff based on the staff image, and a main communication unit for transmitting the three-dimensional position obtained to the mobile station device, and wherein the mobile station device displays the relation between the three-dimensional position of the staff as received and the working data on the mobile station display unit. | 10-16-2014 |
20140317944 | Simplified Distance Meter - A simplified distance meter comprises a frame, at least two wheels installed in front and rear of the frame, rotation detectors for detecting rotation of at least one wheel, and tilt detecting means installed on the frame, wherein amount of rotations of the wheels is obtained by the rotation detector, and tilting of the frame corresponding to the amount of rotations is acquired by the tilt detecting means. | 10-30-2014 |
20140354802 | Spectral Image Acquiring Device And Spectral Image Acquiring Method - A spectral image acquiring device comprises an objective lens, a field aperture member for limiting a size of an image passing through the objective lens and focusing, a wavelength selecting member arranged on an optical axis of the objective lens, having two or more wavelength selecting surfaces and having different wavelength selection characteristics for each of the wavelength selecting surfaces, a deflecting member for deflecting partial luminous fluxes passing through the wavelength selecting surface, an image pickup element arranged on the optical axis of the objective lens, and an image forming lens for focusing the partial luminous fluxes deflected by the deflecting member on the image pickup element for each of the partial luminous fluxes. | 12-04-2014 |
20140371952 | Flying Vehicle Guiding System And Flying Vehicle Guiding Method - A flying vehicle guiding system, which comprises a remotely controllable flying vehicle system, a surveying instrument being able to measure distance, angle, and track, and a ground base station for controlling a flight of the flying vehicle system based on measuring results by the surveying instrument, wherein the flying vehicle system has a retro-reflector as an object to be measured, wherein the surveying instrument has a non-prism surveying function for performing distance measurement and angle measurement without a retro-reflector, a prism surveying function for performing distance measurement and angle measurement with respect to the retro-reflector, and a tracking function for tracking the retro-reflector and for performing distance measurement and angle measurement, wherein the surveying instrument performs non-prism measurement on a scheduled flight area, the ground base station sets a safe flight area based on the results of the non-prism measurement, and controls so that the flying vehicle system flies in the safe flight area based on the results of tracking measurement by de surveying instrument. | 12-18-2014 |
20150062579 | Rotation Angle Measuring Device - A rotation angle measuring device provided with a fixed unit and a movable unit relatively rotating with respect to the fixed unit, comprising a light source installed on either one of the fixed unit or the movable unit and for emitting a detection light and a reference position signal light, a polarizing plate for converting a detection light emitted from the light source to a polarized light, a polarized light rotating unit for rotating the polarized light around an optical axis of the light source as the center, a reference position signal light emitted at a reference rotating position of the polarized light, a stationary polarizing plate provided on either one of the fixed unit or the movable unit and to stand still with respect to a rotation of the polarized light, a photodetection sensor provided on the fixed unit or on the movable unit and for receiving the polarized light passing through the stationary polarizing plate and the reference position signal light, and an arithmetic unit for calculating a detection waveform of a change of light amount based on a signal from the photodetection sensor, for detecting the reference position signal light and for calculating a relative rotation angle between the fixed unit and the movable unit from a phase of the detection waveform and a predetermined detection reference phase when the reference position signal light is detected. | 03-05-2015 |
20150077545 | Direction Detecting Apparatus And Surveying System - A direction detecting apparatus provided at a known position from a lower end of a supporting pole, comprising an image pickup device with an optical axis orthogonal to an axis of the supporting pole and an arithmetic processing part for calculating based on an image from the image pickup device, wherein the image pickup device acquires an image so as to include an object for which a direction is to be detected, wherein the arithmetic processing part calculates and detects a direction and a tilt of the object from a relation between a position of the object in the image and an optical axis of the image pickup device. | 03-19-2015 |