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Six degree-of-freedom laser tracker that cooperates with a remote sensor

Patentnummer:US10302413B2
IPC Hauptklasse:G01B001103
Anmelder:
Erfinder:Bridges, Robert E. (0)
Pa., Kennett Square, US; Lort III, Richard D., Ala., Huntsville, US
Anmeldung:14.10.16
Offenlegung:15.04.11
Patenterteilung:28.05.19

Abstract / Hauptanspruch
A coordinate measuring device includes: a light source operable to emit a first light, the first light being visible light having a first wavelength; a fiber launch operable to receive the first light through a first optical fiber, to launch the first light into free space, and to collimate the launched first light into a first beam of light having a diameter_defined by the fiber launch, the first beam of light operable to leave the coordinate measuring device absent an intervening beam expander, the fiber launch being further coupled through the first optical fiber to a distance meter operable to measure a first distance to a retroreflector illuminated by the first beam of light; a first motor and a second motor operable to direct the first beam of light to a first direction, the first direction determined by a first angle of rotation about a first axis and a second angle of rotation about a second axis, the first angle of rotation produced by the first motor and the second angle of rotation produced by the second motor; a first angle measuring device operable to measure the first angle of rotation and a second angle measuring device operable to measure the second angle of rotation; and, a processor operable to determine three-dimensional (3D) coordinates of the target based at least in part on the measured first angle of rotation, the measured second angle of rotation, and the measured first distance.

US10302413B2


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