DEVICE FOR MEASURING DISTANCE

A visible measurement beam (11) from a semiconducting laser (10) is collimated and modulated. A receiver lens (15) acquires the light reflected from the remote object and focusses it onto a receiving device. A switchable deflection device (28) forms an internal reference path between the laser and t...

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Bibliographic Details
Main Authors EHBETS, HARTMUT, GIGER, KURT, BERNHARD, HEINZ, HINDERLING, JUERG
Format Patent
LanguageEnglish
French
German
Published 05.02.1997
Edition6
Subjects
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
GYROSCOPIC INSTRUMENTS
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
SURVEYING
TESTING
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Summary:A visible measurement beam (11) from a semiconducting laser (10) is collimated and modulated. A receiver lens (15) acquires the light reflected from the remote object and focusses it onto a receiving device. A switchable deflection device (28) forms an internal reference path between the laser and the receiving device. An electronic evaluation device (25) derives and indicates the distance to the object (16). The receiving device contains a light conductor (17') connected to an optoelectronic transducer (24) and with its light entry surface in the imaging plane of the receiver lens for large object distances. The surface can be controllably displaced from this position transversely wrt. the lens's optical axis.
Bibliography:Application Number: EP19940916928