GB878463A - Improvements in and relating to optical instruments - Google Patents
Improvements in and relating to optical instrumentsInfo
- Publication number
- GB878463A GB878463A GB16937/58A GB1693758A GB878463A GB 878463 A GB878463 A GB 878463A GB 16937/58 A GB16937/58 A GB 16937/58A GB 1693758 A GB1693758 A GB 1693758A GB 878463 A GB878463 A GB 878463A
- Authority
- GB
- United Kingdom
- Prior art keywords
- telescope
- mirror
- pendulum
- reflecting surfaces
- pendulously
- 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Telescopes (AREA)
Abstract
878,463. Stabilizing line of sight; levels. MAGYAR OPTIKAI MUVEK. May 27,1958 [May 27, 1957; April 21, 1958], No. 16937/58. Classes 97(1) and 97(2) The line of sight of a telescope is automatically compensated for small inclinations of the telescope axis by the provision of pendulously mounted reflecting surfaces which reflect light rays at least twice on to one or more reflecting surfaces which are fixed in relation to the telescope. As shown in Fig. 1, between the objective 1 and eyepiece 13 of the telescope there is provided a body 3 having reflecting surfaces 8, 10, this body being pendulously mounted by filaments 6. Also in the telescope is a fixed mirror 9 which reflects light rays received from the mirror 8 on to the mirror 10 which directs the light on to a graticule E, the arrangement being such that for small inclinations of the telescope a horizontal ray will still strike the graticule E. In another form, a single movable mirror is provided in conjunction with the fixed mirror, this mirror being pendulously supported, the vibrations of the pendulum being damped. Prisms may be used instead of mirrors and the pendulum may be suspended on a filament arranged in an inverted V-form (Fig. 5, not shown). As shown in Fig. 4, the pendulum 3 may be suspended by filaments 6 from a support 23 eddy-current dampers 20 being provided at different heights.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU878463X | 1957-05-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB878463A true GB878463A (en) | 1961-09-27 |
Family
ID=10980788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16937/58A Expired GB878463A (en) | 1957-05-27 | 1958-05-27 | Improvements in and relating to optical instruments |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB878463A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3475074A (en) * | 1967-06-01 | 1969-10-28 | Optical Res & Dev Corp | Accidental-motion compensation with collimated light |
US4142800A (en) * | 1975-12-18 | 1979-03-06 | Essilor International (Compagnie Generale d'Optique), a French Societe Anonyme | Automatic level |
JPS6212122U (en) * | 1986-06-26 | 1987-01-24 | ||
JPH0458216A (en) * | 1990-06-28 | 1992-02-25 | Sanpei Goto | Optical axis turning type erecting prism |
CN101922931A (en) * | 2009-06-12 | 2010-12-22 | 株式会社拓普康 | Rotary laser beam emitter |
CN107966768A (en) * | 2016-10-19 | 2018-04-27 | 发那科株式会社 | Light beam branch unit |
WO2019186217A1 (en) * | 2018-03-28 | 2019-10-03 | Borszeki Peter | Camera stabilizer |
-
1958
- 1958-05-27 GB GB16937/58A patent/GB878463A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3475074A (en) * | 1967-06-01 | 1969-10-28 | Optical Res & Dev Corp | Accidental-motion compensation with collimated light |
US4142800A (en) * | 1975-12-18 | 1979-03-06 | Essilor International (Compagnie Generale d'Optique), a French Societe Anonyme | Automatic level |
JPS6212122U (en) * | 1986-06-26 | 1987-01-24 | ||
JPH0214017Y2 (en) * | 1986-06-26 | 1990-04-17 | ||
JPH0458216A (en) * | 1990-06-28 | 1992-02-25 | Sanpei Goto | Optical axis turning type erecting prism |
CN101922931A (en) * | 2009-06-12 | 2010-12-22 | 株式会社拓普康 | Rotary laser beam emitter |
US8407904B2 (en) | 2009-06-12 | 2013-04-02 | Kabushiki Kaisha Topcon | Rotary laser beam emitter |
CN107966768A (en) * | 2016-10-19 | 2018-04-27 | 发那科株式会社 | Light beam branch unit |
CN107966768B (en) * | 2016-10-19 | 2019-06-18 | 发那科株式会社 | Light beam branch unit |
WO2019186217A1 (en) * | 2018-03-28 | 2019-10-03 | Borszeki Peter | Camera stabilizer |
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