FR2656417B1 - SIGHTING APPARATUS FOR DETERMINING THE DIRECTION OF A LIGHT BEAM. - Google Patents
SIGHTING APPARATUS FOR DETERMINING THE DIRECTION OF A LIGHT BEAM.Info
- Publication number
- FR2656417B1 FR2656417B1 FR8916971A FR8916971A FR2656417B1 FR 2656417 B1 FR2656417 B1 FR 2656417B1 FR 8916971 A FR8916971 A FR 8916971A FR 8916971 A FR8916971 A FR 8916971A FR 2656417 B1 FR2656417 B1 FR 2656417B1
- Authority
- FR
- France
- Prior art keywords
- determining
- light beam
- sighting apparatus
- sighting
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
- G01C1/02—Theodolites
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
- G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
- G01P21/025—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers for measuring speed of fluids; for measuring speed of bodies relative to fluids
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8916971A FR2656417B1 (en) | 1989-12-21 | 1989-12-21 | SIGHTING APPARATUS FOR DETERMINING THE DIRECTION OF A LIGHT BEAM. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8916971A FR2656417B1 (en) | 1989-12-21 | 1989-12-21 | SIGHTING APPARATUS FOR DETERMINING THE DIRECTION OF A LIGHT BEAM. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2656417A1 FR2656417A1 (en) | 1991-06-28 |
FR2656417B1 true FR2656417B1 (en) | 1993-12-10 |
Family
ID=9388810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8916971A Expired - Fee Related FR2656417B1 (en) | 1989-12-21 | 1989-12-21 | SIGHTING APPARATUS FOR DETERMINING THE DIRECTION OF A LIGHT BEAM. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2656417B1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE819461C (en) * | 1949-09-15 | 1951-11-19 | Askania Werke Ag | Installation on geodetic devices |
GB1027457A (en) * | 1962-01-30 | 1966-04-27 | British Aircraft Corp A T Ltd | Improvements relating to two-dimensional photoelectric indicating means |
CH488166A (en) * | 1969-04-30 | 1970-03-31 | Contraves Ag | Observation and surveying theodolite for moving objects |
DE2157671C3 (en) * | 1971-11-20 | 1974-05-16 | Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen | Sight goniometer |
DE2850743C3 (en) * | 1978-11-23 | 1981-10-01 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Method and device for measuring the deviation of the transmission beam from the optical axis of the receiving telescope in a lidar device |
CH672024A5 (en) * | 1987-03-02 | 1989-10-13 | Wild Leitz Ag Optik Feinmechan |
-
1989
- 1989-12-21 FR FR8916971A patent/FR2656417B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2656417A1 (en) | 1991-06-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |