Patent · US Expired

Laser distance-measuring instrument for large measuring ranges

US6281968A · kind A · utility

5Cited by

2References

7Claims

0Family size

Assignee

JENOPTIK GmbH · DE

Inventors

Helmut Seifert · Serba, DE
Martin Penzold · Jena, DE
Ullrich Krueger · Milda, DE
Gero Schusser · Nastätten, DE

Key dates

Filing date	Oct 25, 1999
Grant date	Aug 28, 2001
Priority date	—
Expiry date	Oct 25, 2019

Classification

Technology area (CPC G)Physics
CPC primaryG01S17/10
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Laser distance-measuring instrument for large measuring ranges having a transmitting channel and a receiving channel arranged parallel to one another, the receiving lens being a modified single lens comprising a primary lens region with a primary optical reception axis which is aligned parallel to the optical transmission axis, as well as a secondary lens region with a secondary optical reception axis which is inclined to the primary optical reception axis at an angle .alpha., with the result that a primary focal point and a secondary focal point are produced.

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