公开(公告)号：US10564265B2

公开(公告)日：2020-02-18

申请号：US15713841

申请日：2017-09-25

Applicant: Topcon Corporation

Inventor： Takahiro Inoue ,  Satoshi Yanobe ,  Hideyuki Matsumoto ,  Fumio Ohtomo

IPC: G01S7/481 ,  G01S17/02 ,  G01C3/08 ,  G01S17/89 ,  G01B21/22 ,  G01C15/00 ,  G01C1/04 ,  G01B21/04

Abstract: A measurement device and measurement method are provided which are capable of measuring the inclination of a measurement target object surface both with a simple configuration and at high speed. The measurement device includes: a rangefinding light emitting section; a rangefinding unit configured to receive reflected rangefinding light; an optical axis deflection section provided on an optical path common to rangefinding light and reflected rangefinding light, and configured to deflect optical axes thereof; a motor configured to cause the optical axis deflection section to rotate; an emission direction detection unit configured to detect a deflection angle and deflection direction resulting from the optical axis deflection section; and a computation controller that measures the inclination of a measurement target object surface with respect to the emission optical axis on the basis of acquired coordinate data on the measurement target object surface.

公开(公告)号：US20180038690A1

公开(公告)日：2018-02-08

申请号：US15658779

申请日：2017-07-25

Applicant: TOPCON Corporation

Inventor： Fumio Ohtomo ,  Hideyuki Matsumoto ,  Kazuki Osaragi ,  Takahiro Inoue

IPC: G01C15/00 ,  G01B11/00 ,  H02K7/08 ,  G01S17/46 ,  G02B27/20 ,  G02B5/04 ,  G01S17/08 ,  G01D5/347

CPC classification number: G01C15/002 ,  G01B11/002 ,  G01D5/3473 ,  G01S7/4817 ,  G01S17/08 ,  G01S17/42 ,  G01S17/46 ,  G02B5/04 ,  G02B27/20 ,  H02K7/085

Abstract: The invention provides a laser beam projecting unit in which a hollow rotation shaft is provided on a fixed portion via one bearing, a rotor of an axial gap-type motor is provided on one end portion of the rotation shaft, a stator of the axial gap-type motor is provided on the fixed portion so as to confront the rotor, an attracting force between the rotor and the stator acts on the bearing as a pressurization, an angle detector for detecting a rotation angle of the rotation shaft is provided on the other end portion of the rotation shaft, a deflection optical component is provided inside the rotation shaft, and a laser beam is projected through the deflection optical component.