Patent · US Expired

Optoelectronic distance sensor with visible pilot beam

US4825091A · kind A · utility

268Cited by

6References

8Claims

0Family size

Assignee

Carl Zeiss Stiftung · DE

Inventors

Karl-Hermann Breyer · Heidenheim, DE
Klaus-Peter Koch · Aalen, DE

Key dates

Filing date	Feb 1, 1988
Grant date	Apr 25, 1989
Priority date	—
Expiry date	Feb 1, 2008

Classification

Technology area (CPC G)Physics
CPC primaryG01B11/024
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention is directed to a distance sensor operating in accordance with the triangulation principle. The distance sensor has at least one pilot beam source which makes the imaging beam path of the sensor visible. The imaging beam path is inclined with respect to the measuring beam. A second pilot beam source is provided for the situation wherein the actual measuring beam of the sensor is not in the visible spectral region. A visible pilot beam is then superposed on the measuring beam.

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