Laser tracker with hybrid imaging method for extending the measuring range
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United States of America Patent
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Jan 9, 2018
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Sep 5, 2013
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Sep 7, 2012
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Abstract
The invention relates to a laser tracker for determining a position and/or orientation of an auxiliary measurement object, comprising a base which defines a vertical axis, a pivotal support, and a rotatable pivoting unit with at least two optical assemblies and an image detecting unit. The optical assemblies can be moved along an optical axis of the pivoting unit, and a magnification factor is defined by a positioning of the optical assembly. The tracker further has a radiation source for emitting a laser beam, a distance measuring unit, an angle measuring functionality, and a control and processing unit with an object imaging functionality, wherein the optical assemblies are positioned relative to the auxiliary measurement object dependent on a triggered measurement such that an image is provided for the auxiliary measurement object on the image detecting unit with a particular image scale.
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