Patent application number | Description | Published |
20080243429 | THREE-DIMENSIONAL POSITION-MEASURING APPARATUS - A three-dimensional position-measuring apparatus comprises a body, a rotational optical portion rotatable with respect to the body in a horizontal direction and comprising a reflective plate in which deflection in a vertical direction is controllable, a first data transmitting and receiving portion arranged in the body and comprising a first coil which has a rotational axis of the rotational optical portion as an axis, and a second data transmitting and receiving portion arranged in the rotational optical portion and comprising a second coil that has the same axis as that of the first coil and magnetically couples with the first coil. | 10-02-2008 |
20080300822 | ABSOLUTE ANGLE CALCULATION APPARATUS - The absolute angle calculation apparatus includes a calculation circuit calculating an absolute angular position based on a spatially modulated component in a photoelectrically-converted signal string. The calculation circuit includes a photoelectrically-converted signal string storage storing previous and current photoelectrically-converted signal strings obtained, for interpolating the absolute angular position, within a set time shorter than an absolute angle calculation time required to calculate the absolute angular position; a correlation detection circuit detecting a correlation between the previous and current photoelectrically-converted signal strings in the photoelectrically-converted signal string storage and detecting a shift amount therebetween; and an interpolation calculation circuit interpolating an inter-pattern absolute angular position equivalent value based on the shift amount obtained by the current measurement. The calculation circuit calculates an interpolated angle based on the shift amount and the absolute angular position equivalent value, adds the calculated interpolated angle obtained at the current measurement to the absolute angular position obtained at the previous measurement to calculate a current absolute angular position. | 12-04-2008 |
20090235541 | SURVEYING INSTRUMENT, SURVEYING SYSTEM, METHOD FOR DETECTING MEASURED OBJECT, AND COMPUTER-READABLE RECORDING MEDIUM FOR DETECTING MEASURED OBJECT - A surveying instrument for measuring three-dimensional position of a measured object, has a detecting section for detecting a direction of the measured object by rotational emission of two or more fan-shaped laser beams in which at least one beam is inclined; an optical system including a tracking-light-emitting section for emitting a tracking light and a distance-measuring-light-emitting section for emitting a distance-measuring light; a tracking-light-receiving section for receiving the tracking light reflected by the measured object; and a driving section for driving the optical system in order to collimate the measured object according to an output of the detecting section and an output of the tracking-light-receiving section. | 09-24-2009 |
20090237639 | MEASURING SYSTEM - A measuring system includes a measuring apparatus provided at an already-known point, a plurality of light-receiving apparatuses provided at measured points, and a main calculating apparatus for instructing to the measuring apparatus and to the light-receiving apparatus, the measuring apparatuses including a wireless communication section for communicating a measurement data with the light-receiving apparatus or with the main calculating apparatus, wherein the measurement data includes an angle detected by the emission-direction detecting section and a distance measured by the distance-measuring section, the light-receiving apparatus including a light-receiving side wireless communication section communicating the measurement data of the measured point with the measuring apparatus or with the main calculating section, the main calculating sections including a main memory collecting and storing the measurement data which is measured by the measuring apparatus and by the plurality of light-receiving apparatuses. | 09-24-2009 |
20120180564 | LIQUID CONTAINER AND INCLINATION DETECTOR INCLUDING THE SAME - A liquid container for use in an inclination detector includes a container body containing liquid forming a free surface and having a circumferential wall in a spherical form, in which the circumferential wall is formed so that a center of the circumferential wall and a center of the free surface coincide with each other. | 07-19-2012 |
20120182418 | ELECTRONIC LEVEL DEVICE AND LEVEL STAFF USED FOR ELECTRONIC LEVEL DEVICE - An electronic level includes a wide-angle lens system having a two-dimensional imaging element configured to form thereon a picture image including an image of a level staff assigned with a code pattern, an extraction part configured to extract the image of the level staff from the picture image, a height-level measurement value calculation part configured to obtain a height-level measurement value indicated by a portion of the code pattern in the image of the level staff extracted by the extraction part, the portion of the code pattern located at a collimation optical axis of the wide-angle lens system, and a calculation part configured to calculate a collimation height from the height-level measurement value. | 07-19-2012 |
20120224164 | OPTICAL DISTANCE MEASURING APPARATUS - An optical distance measuring apparatus which emits emission light from a light source to an object and receives reflection light from the object with a light-receiving unit, and performs distance measurement based on the emission light and the reflection light, the apparatus including a deflection mechanism provided in an optical path to an irradiation light axis from the light source to the object, the deflection mechanism configured to reflect the emission light to incline a direction of the emission light with respect to the emission light axis of the light source, wherein the deflection mechanism has an optically conjugate relationship with a predetermined position on the emission light axis or on the irradiation light axis, the predetermined position being closer to the object than the deflection mechanism when viewed from the light source. | 09-06-2012 |
20120242830 | GUIDE LIGHT DEVICE, SURVEY APPARATUS HAVING THE GUIDE LIGHT DEVICE, SURVEY SYSTEM USING THE SURVEY APPARATUS, SURVEY POLE USED IN THE SURVEY SYSTEM, AND MOBILE WIRELESS TRANSCEIVER USED IN THE SURVEY SYSTEM - 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. | 09-27-2012 |
20150052765 | SURVEYING INSTRUMENT AND SURVEYING OPERATION SYSTEM - A surveying instrument includes a pedestal provided with a guide light irradiation unit provided with a light source to irradiate with guide light indicating a collimation direction of the surveying instrument to an operator, a tracking optical system which locks a target, a ranging optical system which ranges a distance to the target, and a control circuit which calculates surveying data by a ranging result of the ranging optical system, and a transmitting and receiving unit which receives survey setting point data regarding a survey setting operation and sends the surveying data obtained by the control circuit. | 02-26-2015 |