Electro-optic distance measuring device

• Main Authors: STUFFLEBEAM, JAMES E, JEKEL, RICHARD N, BUSCHE, WILLIAM W, HILL, DOUGLAS G, BRUCE, ROBERT L
• Format: Patent
• Language: English
• Published: 23.10.1979
• 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

A device for measuring distances to a target includes electronic circuits for generating a light which is amplitude modulated by three selectable frequencies. Also included are optics for focusing the amplitude modulated light onto the target, and for receiving reflection of the light therefrom. Add...