Kabushiki Kaisha Topcon

Jun Sasagawa

Hirokazu Yamada

Kazuaki Kimura

Yasutaka Katayama

Yohei Ogawa

Kaoru Kumagai

Hitoshi Otani

You Sasaki

Nobuyuki Fukaya

Takeshi Ishida

Hiroto Shibuya

Naoto Kasori

Shuichi Sasaki

Kazushige Koshikawa

Tomohiro Abe

Tetsuya Akimoto

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.

Omnidirectional camera

A measuring instrument comprises an spherical camera () for acquiring image data over total circumference, a laser scanner () installed integrally with the spherical camera and for acquiring point cloud data of the surroundings, a synchronous control unit () for controlling acquisition of data of the spherical camera and the laser scanner, a storage unit () for recording the image data and the point cloud data, an absolute scale acquiring means for acquiring an absolute scale for obtaining an absolute position of when images are photographed by the spherical camera, and a control arithmetic unit (), wherein the control arithmetic unit calculates a 3D model based on the image data, the point cloud data, and the absolute position.

Measuring instrument for preparing three-dimensional point cloud model

An omnidirectional camera comprises a camera mounting frameof a cylindrical hollow body, two or more first mount blockswhich hold a first lens unitin a horizontal posture and are installed to the camera mounting frame from a horizontal direction, and first circuit boards provided on inner end surfaces of the first mount blocks, and in the omnidirectional camera, the camera mounting frame and the first mount blocks are made of materials with good heat transfer properties, the first circuit board has a ground layer formed on an abutting surface with respect to the first mount block and a first image pickup element arranged on an optical axis of the first lens unit, and the heat generated from the first image pickup element is radiated from the first mount block and the camera mounting frame through the ground layer.

An omnidirectional camera comprises two or more camera units, a camera assembly in which the two or more camera units are mounted, a heat shield cover to accommodate the camera assembly, a heat insulating member interposed between the camera assembly and the heat shield cover, a space formed between the camera assembly and the heat shield cover, a required number of slits formed in the heat shield cover and extending in up-and-down direction, and in the omnidirectional camera, the space communicates with an outside through the slit.

An omnidirectional camera comprises a camera assemblyhaving two or more horizontal camera unitsprovided radiantly and a coverfor accommodating the camera assembly, and in the omnidirectional camera, a lens hole, through which an objective lens of the horizontal camera units come out, is formed on the cover, a lens hoodis provided on the cover concentrically with the lens hole, the lens hood has a shape of surface which does not intercept a field angle of the horizontal camera units, and a maximum height of the lens hood is larger than a protruding amount of the objective lens from the cover.

Omnidirectional camera and lens hood

In a laser beam detecting device for a construction machine, a beam sensor is installed above a leveling implement of the construction machine, a laser beam is detected by the beam sensor, and information based on the beam detection is displayed on a display. A plurality of reference positions are established in a range in which the beam sensor detects the laser beam. One of the reference positions is made a standard position, while the other reference positions are made offset positions.

Laser beam detecting device for a construction machine

A displacement measuring appparatus is small in size and hence capable of avoiding interference with other units and further has its measurement accuracy hardly deteriorated. There are disposed pulleys for movement with respect to the body of the appartus and there is disposed an energizing means such that the pulleys are subjected to the energizing force. A wire is passed around the pulleys. When the wire is subjected to a pulling force, the pulleys are moved against the energizing force of the energizing means.

Displacement measuring apparatus

A surveying system comprises a surveying machine (11) which is disposed at a reference point (A) and a reflecting mirror (5) which is disposed on the side of a target point (B). In this surveying system, a signal-light projecting device (16) for projecting a beam of signal light (P3) onto the surveying machine (11) is disposed on the side of the target point (B), and a rough-direction detecting device (20) for detecting roughly a direction in which the signal-light projecting device (16) is located by receiving the beam of signal light (P8), and a precise-direction detecting device (21) for detecting precisely the direction in which the signal-light projecting device (16) is located by receiving the beam of signal light (P3) are disposed on the side of the surveying machine (11).

Surveying system

A distance measuring apparatus is provided which is capable of not only reducing the cost of auxiliary separate parts but also making the apparatus small-sized and lightweight and improving the efficiency of operation in spite of the fact that both the measurements of long and short distances can be taken with the single apparatus. The distance measuring apparatus projects a measuring beam of light toward an object (14) to be measured by a light projecting system. Light reflected by the object (14) is imaged on a light receiving and converting device (16) by a light receiving system. A distance from a measuring position to the object (14) is measured based on the light imaged on the light receiving and converting device (16). If an object (17) to be measured is a reflecting sheet or natural substance, part of diffused and reflected light from the object (17) is deflected toward the light receiving and converting device (16) by a deflecting device (15) which is disposed apart from an optical axis (Q2) and close to the light receiving and converting device (16): disposed on an optical path which ranges from the object (17) to the light receiving and converting device (16).

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Tokyo-to, Japan

Jun Sasagawa