FR932977A - Improvements to range finders, altimeters and similar optical measuring instruments - Google Patents
Improvements to range finders, altimeters and similar optical measuring instrumentsInfo
- Publication number
- FR932977A FR932977A FR932977DA FR932977A FR 932977 A FR932977 A FR 932977A FR 932977D A FR932977D A FR 932977DA FR 932977 A FR932977 A FR 932977A
- Authority
- FR
- France
- Prior art keywords
- altimeters
- optical measuring
- measuring instruments
- similar optical
- range finders
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/10—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument
- G01C3/12—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument with monocular observation at a single point, e.g. coincidence type
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB932977X | 1941-03-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR932977A true FR932977A (en) | 1948-04-07 |
Family
ID=10747475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR932977D Expired FR932977A (en) | 1941-03-14 | 1946-08-28 | Improvements to range finders, altimeters and similar optical measuring instruments |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR932977A (en) |
-
1946
- 1946-08-28 FR FR932977D patent/FR932977A/en not_active Expired
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