The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 17, 2018
Filed:
Dec. 19, 2013
Leica Geosystems Ag, Heerbrugg, CH;
Albert Markendorf, Walde, CH;
LEICA GEOSYSTEMS AG, Heerbrugg, CH;
Abstract
Some embodiments of the invention relate to a laser tracker for determining the position of a target, comprising a beam source for generating measurement radiation; a base; a beam deflection unit which can pivot with respect to the base −4° C. about two axes in a motorized manner, for the emission and alignment of the measurement radiation and to capture at least one part of the measurement radiation reflected onto the target; a first position-sensitive surface detector and an evaluation and control unit for determining a point of impact of the reflected measurement on the surface detector for generating an output signal in order to determine the position of said target. Said laser tracker also comprises a calibration device for use with a self calibrating function to determine the calibration parameters thereof with respect to a position and/or direction of the measurement radiation.