GB1200778A - Photo-electric rangefinder - Google Patents
Photo-electric rangefinderInfo
- Publication number
- GB1200778A GB1200778A GB5051667A GB5051667A GB1200778A GB 1200778 A GB1200778 A GB 1200778A GB 5051667 A GB5051667 A GB 5051667A GB 5051667 A GB5051667 A GB 5051667A GB 1200778 A GB1200778 A GB 1200778A
- Authority
- GB
- United Kingdom
- Prior art keywords
- axis
- mirror
- rotation
- eyepiece
- scales
- 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
- G01C1/00—Measuring angles
- G01C1/02—Theodolites
-
- 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
- G01C3/02—Details
- G01C3/04—Adaptation of rangefinders for combination with telescopes or binoculars
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
1,200,778. Surveying apparatus. CARL ZEISS JENA VEB. Nov.7, 1967, No.50516/67. Heading G1F. A photo-electric rangefinder comprises an optical system 3, 6 for transmitting an intensity modulated light beam and an optical system 1, 2, 6 for receiving the beam, the two systems being mounted for joint rotation about a horizontal axis X-X and a vertical axis Y-Y. The receiving system co-operates with optical elements 16, 10, 11, 12 to form a sighting telescope. A source of light 5 is positioned at the centre of the mirror 3 and the beam reflected from a remote reflector is focussed on a sighting mark 9. The mirror 16 enables the mark 9 to be viewed in the eyepiece 10-12. For measuring the rotation of the instrument about the axis X-X a graduated scale 17 is provided and is rigidly connected to both optical systems, whilst rotation about the axis Y-Y is measured using a fixed graduated scale 18. The scales 17, 18 are illuminated by light directed on to them by mirrors 19, 30 and prism arrangements. The images of the illuminated portions of the scales are focussed on a disc 28 bearing an index mark which is viewed by an eyepiece 29 and a mirror 36, a given rotation of the eyepiece about the axis X-X causing the mirror to rotate half the given rotation. The required horizontal and vertical angles are determined by the positions of the index mark in the images of the illuminated portions of the scales. The range is determined by transmitting the intensity modulated light reflected from the remote reflector to a photoelectric receiver 15 by means of which the phase of the incident light and therefore the range are determined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5051667A GB1200778A (en) | 1967-11-07 | 1967-11-07 | Photo-electric rangefinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5051667A GB1200778A (en) | 1967-11-07 | 1967-11-07 | Photo-electric rangefinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1200778A true GB1200778A (en) | 1970-08-05 |
Family
ID=10456185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5051667A Expired GB1200778A (en) | 1967-11-07 | 1967-11-07 | Photo-electric rangefinder |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1200778A (en) |
-
1967
- 1967-11-07 GB GB5051667A patent/GB1200778A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |