GB912681A - Improvements in or relating to oscillatory devices - Google Patents
Improvements in or relating to oscillatory devicesInfo
- Publication number
- GB912681A GB912681A GB2506761A GB2506761A GB912681A GB 912681 A GB912681 A GB 912681A GB 2506761 A GB2506761 A GB 2506761A GB 2506761 A GB2506761 A GB 2506761A GB 912681 A GB912681 A GB 912681A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- pendulum
- balls
- knife edges
- july
- 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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
- G02B27/648—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake for automatically maintaining a reference alignment, e.g. in self-levelling surveying instruments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/1821—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors for rotating or oscillating mirrors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Particle Accelerators (AREA)
Abstract
912,681. Stabilizing line of sight; mirror mounting. SOC. D'OPTIQUE ET DE MECANIQUE DE HAUTE PRECISION. July 11, 1961 [July 19, 1960], No. 25067/61. Class 97 (1). [Also in Group XVIII] In order, for example, to maintain horizontal a sighting line, a mirror 4 is carried by a pendulum 1 which is suspended by wires or metal tapes 6 from a fixed support 5. To prevent transverse vibrations arms 9 on the pendulum have screws 10 with end recesses carrying balls or knife edges which bear against the support 5 and are in line with the axis of articulation X-X<SP>1</SP> defined by the wires or tapes 6. In a modification the balls or knife edges are mounted on slides which can be clamped to the pendulum in such positions that the balls or knife edges are in line with axis X-X<SP>1</SP>.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR833321A FR1271103A (en) | 1960-07-19 | 1960-07-19 | Improvements to pendulum devices intended more particularly for optical devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB912681A true GB912681A (en) | 1962-12-12 |
Family
ID=8735748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2506761A Expired GB912681A (en) | 1960-07-19 | 1961-07-11 | Improvements in or relating to oscillatory devices |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH373570A (en) |
FR (1) | FR1271103A (en) |
GB (1) | GB912681A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2557313A1 (en) * | 1983-12-22 | 1985-06-28 | Essilor Int | Process and device for fine adjustment of the angular and spatial position of an object along two orthogonal directions |
-
1960
- 1960-07-19 FR FR833321A patent/FR1271103A/en not_active Expired
-
1961
- 1961-06-23 CH CH741661A patent/CH373570A/en unknown
- 1961-07-11 GB GB2506761A patent/GB912681A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2557313A1 (en) * | 1983-12-22 | 1985-06-28 | Essilor Int | Process and device for fine adjustment of the angular and spatial position of an object along two orthogonal directions |
Also Published As
Publication number | Publication date |
---|---|
CH373570A (en) | 1963-11-30 |
FR1271103A (en) | 1961-09-08 |
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