Patent Document ID: 8525983
Application ID: 12620070
Patent Status: 1

Claim One:
1. A laser tracker, the system comprising: a tracking unit and a target, the tracking unit including a payload assembly rotatable around at least one axis, the payload assembly including a main optics assembly and a pattern projector assembly, the main optics assembly structured to emit a first laser beam, the pattern projector assembly structured to emit a second laser beam shaped into a two-dimensional pattern, the two dimensional pattern having features spaced over at least three angles with respect to a center point, the target including a target structure, a retroreflector, and a position sensor assembly, the retroreflector and the position sensor assembly rigidly affixed to the target structure, wherein, for the case in which the retroreflector is positioned so as to retroreflect the first laser beam to the main optics assembly, the position sensor assembly is disposed on a plane that lies between the main optics assembly and a vertex of the retroreflector.