GB650826A - Improvements in or relating to optical apparatus - Google Patents
Improvements in or relating to optical apparatusInfo
- Publication number
- GB650826A GB650826A GB2910347A GB2910347A GB650826A GB 650826 A GB650826 A GB 650826A GB 2910347 A GB2910347 A GB 2910347A GB 2910347 A GB2910347 A GB 2910347A GB 650826 A GB650826 A GB 650826A
- Authority
- GB
- United Kingdom
- Prior art keywords
- camera
- axis
- mirror
- projector
- image
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Stereoscopic And Panoramic Photography (AREA)
Abstract
650,826. Optical apparatus. MINISTER OF SUPPLY. Oct. 31, 1947, No. 29103. [Classes 97 (i) and 98 (i)] Optical apparatus for recording an image, the position of which relative to the optical axis of a camera indicates the angular relationship between a reference axis and the optical axis of the camera comprises a mounting for a camera 11, said mounting also carrying a free gyroscope 12 defining the reference axis, e.g. the vertical, a transparent plane mirror 15 inclined at 45 degrees to the camera axis, a roof prism 14 similarly inclined to the camera axis so as to form with the plane mirror 15 three plane reflecting surfaces which are mutually perpendicular, and a projector 16. Light from this projector passes through the transparent mirror 15 and is reflected at 14 on to a convex mirror 17, which is carried by the inner gimbal of the gyroscope 12 so that its principal focus lies at the point of intersection of the gimbal axes. The projector 16 is adjusted so that the light beam converges on the principal focus of mirror 17 so that a parallel light beam is reflected by this mirror and is directed at 14 and 15 into the camera, whereby an image of a graticule in the projector is formed on the film or plate in the camera by the lens thereof. When the camera axis is vertical, the graticule image 19 will be formed on the camera axis. If the camera, however, is not disposed with its axis vertical, the graticule image will be formed, for example, at 18, the distance of this point from the camera axis giving an indication of the inclination of the camera axis to the vortical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2910347A GB650826A (en) | 1947-10-31 | 1947-10-31 | Improvements in or relating to optical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2910347A GB650826A (en) | 1947-10-31 | 1947-10-31 | Improvements in or relating to optical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB650826A true GB650826A (en) | 1951-03-07 |
Family
ID=10286201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2910347A Expired GB650826A (en) | 1947-10-31 | 1947-10-31 | Improvements in or relating to optical apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB650826A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2937585A (en) * | 1954-03-31 | 1960-05-24 | Nubar Yves | Device for measuring the orientation of a surface |
| US3000284A (en) * | 1958-05-16 | 1961-09-19 | Fr D Optique Et De Mecanique S | Devices for determining the drientation in space of an apparatus at a given time |
| CN105549184A (en) * | 2016-01-07 | 2016-05-04 | 珠海市运泰利自动化设备有限公司 | Micro imaging positioning apparatus |
-
1947
- 1947-10-31 GB GB2910347A patent/GB650826A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2937585A (en) * | 1954-03-31 | 1960-05-24 | Nubar Yves | Device for measuring the orientation of a surface |
| US3000284A (en) * | 1958-05-16 | 1961-09-19 | Fr D Optique Et De Mecanique S | Devices for determining the drientation in space of an apparatus at a given time |
| CN105549184A (en) * | 2016-01-07 | 2016-05-04 | 珠海市运泰利自动化设备有限公司 | Micro imaging positioning apparatus |
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