Kabushiki Kaisha Topcon

Other

Kunihiro Hayashi

Fumio Ohtomo

Kazuki Osaragi

Kaoru Kumagai

Jun-ichi Kodaira

Fumihiko Kamizono

Satoshi Hirano

Hiroyuki Nishizawa

Kenichiro Yoshino

Ken-ichiro Yoshino

Yohei Ogawa

Hiroshi Kajiyama

Ikuo Ishinabe

Takaaki Yamazaki

Hisakazu Yoshino

Akio Kimura

Yoshihiko Hanamura

Yasutaka Katayama

Richard W Davidson

Naoto Kasori

Vernon J Brabec

Peng Zhao

Masayuki Nishi

Michiyo Saito

Makoto Ohmori

Fumio Ootomo

Clyde C Goad

Eduardo F Falcon

Richard J Jackson

Ray O'Connor

Fumio Otomo

Masanori Fujimoto

Yukio Ishiba

Kazuki Ohsaragi

A position at which evaluation of a defect was performed is easily identified. Relative positional relationships between three-dimensional coordinates of feature points of a photographed object and positions of a panoramic cameraare calculated based on a moving image, which is photographed by the panoramic camerawhile a vehicletravels. The position of the object photographed by a hyperspectral camerais calculated based on the relative positional relationships and exterior orientation parameters of the hyperspectral camerawith respect to the panoramic camera

Operating device, operating method, and program therefor

An electric distance meter is downsized by using a condensing optical member having a small outer diameter (effective diameter) as a condensing optical member in a light-receiving optical system, reducing a focal length of the condensing optical member without reducing a spread angle to a light-receiving optical fiber and reducing a diameter of the light-receiving optical fiber. An optical distance meter emits outgoing light from a light source to an object, and receives reflection light R from the object by a light receiver, so as to perform distance measurement. The optical distance meter includes an emitting optical system which irradiates the object by the emission light via an objective lens and a light-receiving optical system which guides the reflection light via the objective lens to the light receiver, and a cone prism which changes a cross-section shape of a light beam without generating a transmission deflection angle is provided.

Electric distance meter

A surveying system comprises a plurality of rotary laser devices (), being installed at known points, for projecting laser beams () in rotary irradiation and for forming laser reference planes (RPa, RPb) respectively, a photodetecting device (), being installed on a movable support member (), for receiving the laser beam and for detecting a height of each of the laser reference planes at their photodetecting position, a coordinate position measuring device () for detecting coordinate position of the support member, and a control device (), wherein the rotary laser devices form the laser reference planes in such manner that at least a part of each effective range of the laser reference planes is overlapped on each other, the control device sets up a smoothing area within a range where the effective ranges are overlapped on each other, and in case the support member is judged to be within the smoothing area, based on a result of measurement by the coordinate position measuring device, the control device carries out smoothing processing of the laser reference plane continuously by the smoothing reference plane in the smoothing area based on the result of measurement by the coordinate position measuring device and also based on the result of detection by the photodetecting device.

Surveying system and laser reference plane smoothing method in surveying system

A plant sensor includes a first light emitter to emit first measuring light with a first wavelength to irradiate a growing condition measurement target therewith; a second light emitter to emit second measuring light with a second wavelength to irradiate the growing condition measurement target therewith; a light receiver to receive reflected light of each of the first and second measuring light from the growing condition measurement target and output a received light signal; a controller to control light emission; a light path merging unit to merge a first outgoing light path of the first measuring light from the first light emitter and a second outgoing light path of the second measuring light from the second light emitter; and a common outgoing light path connecting the light path merging unit to a light exit portion emitting the first measuring light and the second measuring light.

Plant sensor having a controller controlling light emission of first and second light emitters at timings different from each other

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.

Optical distance measuring apparatus

A rotary laser emitting apparatus includes a rotary body, a foundation configured to rotatably support the rotary body about an axis, a laser light emitting section contained in the rotary body and configured to emit laser light in a direction orthogonal to a rotation axis of the rotary body, a relative slope detecting mechanism configured to detect an amount of deviation of the rotation axis of the rotary body from the axis of the foundation as a relative slope signal, and a transmitting section configured to transmit the relative slope signal detected by the relative slope detecting mechanism.

Rotary laser emitting apparatus

A rotary laser beam emitter includes a base unit including a reference reflector with a reference reflective face parallel to a reference plane, a rotary element rotatably supported on the base unit around a rotary axis, and a beam emitting unit contained in the rotary element and including a light source and an optical emission system emitting the laser beam from the light source in a direction parallel to the reference plane on the optical axis. When the rotary element is inclined relative to the rotary axis and the emitted laser beam is inclined to the reference plane, the optical emission system emits the laser beam from the light source to the reference reflective face and emit the laser beam reflected by the reference reflective face in a direction inclined to the optical axis of the laser beam so as to neutralize the inclined laser beam.

Rotary laser beam emitter

An optical signal transfer device includes a transmitter system and a receiver system for signal transfer between a base unit and a rotary unit. The receiver system includes a natural number n of light receiving portions forming a ring-like light receiving area around the rotary axis and a light reception controller. The transmitter system includes a light emitting portion, an emission controller, and an optical guide which guides a light beam from the light emitting portion to a light emitting area facing the light receiving area. The optical guide guides a light beam to the light emitting area in one of n equally divided areas of a ring-like opposing area which opposes the light receiving area. Therefore, one of the n light receiving portions always face the light emitting area irrespective of rotary position of the receiver system around the rotary axis relative to the transmitter system.

Optical signal transfer device

The present invention relates to a surveying system, comprising a rotary laser irradiation deviceinstalled at a known point and used for projecting two or more fan-shaped laser beamswith at least one of the fan-shaped laser beams tilted and for forming a laser reference plane, a photodetection device, which is mounted on a mobile support member, for receiving the laser beam and for calculating an elevation angle at a photodetecting position, and a monitor photodetection deviceinstalled at a known position within the laser reference plane, wherein the monitor photodetection device has a monitor photodetection sensor for sensing and detecting the laser beam, a storage unit for storing a reference value of the laser reference plane, an arithmetic control unit for calculating positional changes over time of the laser reference plane based on the result of photodetection by the monitor photodetection sensor and on the reference value, and a transmitting unit for transmitting the positional changes over time to the photodetection device and/or to the rotary laser irradiation device as compensation information.

Surveying system

The present invention provides a surveying device, which comprises rotatorsandfor deflecting a distance measuring light in horizontal direction and for projecting the distance measuring light in rotary irradiation, at least one extension memberfor increasing a spreading angle in vertical direction of the distance measuring light, and a means for attaching or detaching the extension member so that the extension member can be inserted and removed to or from a distance measuring optical axis.

Surveying device and surveying system

A rotary laser projecting device comprising a reference plane forming unit that projects two or more fan-shaped laser beams, a distance measuring unit that projects distance measuring light, a rotator for projecting the fan-shaped laser beams and the distance measuring light by rotary irradiation, a horizontal angle detecting unit, a photodetection unit for receiving the reflected fan-shaped laser beams and the reflected distance measuring light, a storage unit, and a control arithmetic unit is disclosed. The control arithmetic unit measures elevation angle of the object reflector from time difference of photodetection between the two or more laser beams, measures horizontal angle of the object based on the result of detection of the horizontal angle detecting unit when at least one of the reflected fan-shaped laser beams and the reflected distance measuring light is received and the distance measuring unit measures a distance to the object to be measured.

Laser surveying system

The present invention provides a surveying device, which comprises a light source for emitting a distance measuring light, an elevation rotary mirrorfor deflecting said distance measuring light in a direction toward an object to be measured, a high-speed deflection mirrorfor deflecting said distance measuring light at a speed higher than said elevation rotary mirror, a distance measuring light projecting unit for projecting said distance measuring light, and an arithmetic control unit for controlling driving of said high-speed deflection mirror and said elevation rotary mirror.

A laser level detection system which detects a reference plane of laser at an arbitrary position includes a plurality of level detection units and an operation unit which displays a detection result of each of the level detection units and can operate each of the level detection units, and the laser level detection unit, which has detected the reference plane of the laser, outputs the detection result and an own identification signal of the level detection unit, and the operation unit displays the detection result and a receiving result of the identification signal of the level detection unit.

Laser level detection system

There are provided a horizontal angle detector for detecting a horizontal angle, an elevation angle detector for detecting an elevation angle, a dynamic displacement detector for detecting posture displacement of a surveying instrument main unit in two horizontal directions, and a calculating unit, wherein the dynamic displacement detector detects displacement with respect to standard posture of the surveying instrument main unit, the calculating unit calculates the horizontal angle and the elevation angle corresponding to dynamic displacement detected by the dynamic displacement detector, and compensates the horizontal angle and the elevation angle obtained by the horizontal angle detector and the elevation angle detector respectively are compensated based on the calculated horizontal angle and the calculated elevation angle.

Surveying instrument

A laser beam projecting device, comprising a laser light source for emitting a laser beam, a wavelength selecting film for allowing the laser beam from the laser light source to. pass, and a birefringent optical member arranged on an optical axis closer to an exit side than the wavelength selecting film, wherein the wavelength selecting film is tilted so that an incident angle of the laser beam is in a range of 45&#xb0; to 80&#xb0;.

Growing community of inventors

Itabashi-ku, Japan

Kunihiro Hayashi