Patent · US Active

Holographic test plate for positioning and aligning pipes

US7511805B2 · kind B2 · utility

7Cited by

4References

15Claims

0Family size

Assignee

LEICA GEOSYSTEMS AG · CH

Inventors

Jürg Hinderling · Interlaken, CH
Peter Kipfer · Erbach, DE
Anton Kehl · Moutier, CH
Jeffrey Victor Harrington · Kent City, US
Klaus Schneider · Tiefenbronn, DE

Key dates

Filing date	Nov 28, 2005
Grant date	Mar 31, 2009
Priority date	—
Expiry date	Jul 30, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG03H2001/0066
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A target plate (Z) according to the invention for positioning components, in particular pipes (R1, R2), 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.