The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 2009
Filed:
Nov. 28, 2005
Jürg Hinderling, Marbach, CH;
Peter Kipfer, Marbach, CH;
Anton Kehl, Ruethi, CH;
Jeffrey Victor Harrington, Kent City, MI (US);
Klaus Schneider, Dornbirn, AT;
Jürg Hinderling, Marbach, CH;
Peter Kipfer, Marbach, CH;
Anton Kehl, Ruethi, CH;
Jeffrey Victor Harrington, Kent City, MI (US);
Klaus Schneider, Dornbirn, AT;
Leica Geosystems AG, Heerbrugg, CH;
Abstract
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 (dΩ). Furthermore, the diffusor may have stochastically distributed structures and thus illuminate the solid angle region (dΩ) 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.