Invention Grant
- Patent Title: Laser tracker with position-sensitive detectors for searching for a target
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Application No.: US14363280Application Date: 2012-12-06
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Publication No.: US09696140B2Publication Date: 2017-07-04
- Inventor: Albert Markendorf
- Applicant: LEICA GEOSYSTEMS AG
- Applicant Address: CH Heerbrugg
- Assignee: LEICA GEOSYSTEMS AG
- Current Assignee: LEICA GEOSYSTEMS AG
- Current Assignee Address: CH Heerbrugg
- Agency: Maschoff Brennan
- Priority: EP11192216 20111206
- International Application: PCT/EP2012/074667 WO 20121206
- International Announcement: WO2013/083707 WO 20130613
- Main IPC: G01B11/14
- IPC: G01B11/14 ; G01S17/66

Abstract:
Some embodiments of the invention relate to a laser tracker for continuously pursuing a reflective target and for determining the position of the target. The method may include a base which defines a vertical axis, a beam guiding unit for emitting a measurement beam, the beam guiding unit being pivotable by motor relative to the base about the vertical axis and an inclination axis, and a measurement axis being defined by an emission direction of the measurement beam. The laser tracker may include a precision distance measurement unit and an angle measurement function. The target search unit may have illumination source for illuminating the target, a first camera with a first position-sensitive detector and at least one part of the illumination beam reflected on the target being determinable as a first target position, and a control and evaluation unit.
Public/Granted literature
- US20140320643A1 LASER TRACKER WITH POSITION-SENSITIVE DETECTORS FOR SEARCHING FOR A TARGET Public/Granted day:2014-10-30
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