Leica Geosystems Ag

Jeffrey Victor Harrington

Jürg Hinderling

Klaus Schneider

Peter Kipfer

Anton Kehl

A target plate (Z) according to the invention for positioning components, in particular pipes (R, R), has a holographic optical element as a holographic diffusor. By means of the diffusor, radiation striking the target plate (Z) in the form of a reference beam (RS) can be guided very accurately and virtually without loss into a defined solid angle region (d&#x3a9;). Furthermore, the diffusor may have stochastically distributed structures and thus illuminate the solid angle region (d&#x3a9;) homogeneously. By means of the target plate (Z), the visibility of the incident reference beam (RS) is increased, and the reference beam (RS) can also be detected independently of position.

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Kent City, MI, United States of America

Jeffrey Victor Harrington