04825091 is referenced by 160 patents and cites 7 patents.

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.

Title
Optoelectronic distance sensor with visible pilot beam
Application Number
7/151207
Publication Number
4825091
Application Date
February 1, 1988
Publication Date
April 25, 1989
Inventor
Klaus P Koch
Aalen
DE
Karl Hermann Breyer
Heidenheim
DE
Agent
Walter Ottesen
Assignee
Carl Zeiss Stiftung
DE
IPC
G01N 21/86
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