CN2066570U - Standard measuring instrument for optic space angle - Google Patents
Standard measuring instrument for optic space angle Download PDFInfo
- Publication number
- CN2066570U CN2066570U CN 90209445 CN90209445U CN2066570U CN 2066570 U CN2066570 U CN 2066570U CN 90209445 CN90209445 CN 90209445 CN 90209445 U CN90209445 U CN 90209445U CN 2066570 U CN2066570 U CN 2066570U
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- CN
- China
- Prior art keywords
- angle
- light
- measuring instrument
- parallel
- prism
- 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.)
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Abstract
A standard measuring instrument for optic space angle is composed of a parallel light generator, a mutual parallel light beam forming device and a refraction prism group. The parallel light generator is a parallel light pipe which generates parallel light. The mutual parallel light beam forming device is composed of a piece of pentaprism and a guide rail. When the light shoots at the pentaprisms which are positioned in the different positions of the guide rail, the shooting light beam is parallel. Any one block of the prisms in the refraction prism group can totally fold the light into an angle. When the placed angle has subtle change, the direction of the shooting light is constant, and the angle value of the shooting light only lies on the actual angle of the refraction prism. The utility model has the advantages that a standard angle generated by the optical system is provided with high stability and can solve the problem that the angle values of an optical theodolite and the other space angle measuring instruments are calibrated.
Description
Optical space angular standard measuring instrument belongs to high precision measuring instrument.Can be used as the space angle standard and be widely used in aspects such as the debuging of various Space Angle angle measuring systems, verification, calibrating.Calibrating as precision optics transit vertical angle.
The demarcation of space angle does not still have the reliable and stable high precision measuring instrument of a kind of angle value so far.The vertical calibration of transit for example, after finishing assembling, its comprehensive error of division should be demarcated.Through the online information retrieval of Chinese science and technology information institute, at home and abroad there is no any instrument at present can demarcate this error.
The purpose of this utility model provides a cover optical detection system in order to solve the angle value demarcation problem of optical theodolite and other spatial angle measuring instrument.
The purpose of this utility model is achieved in that this instrument is made of (1) directional light generator (being parallel light tube) three parts; (2) light beam that is parallel to each other forms device.It is made up of a pentaprism and a guide rail, and when light directive pentaprism, and pentaprism is when being in the guide rail diverse location, and outgoing beam is parallel to each other; (3) refractive prism group.Arbitrary prism all can be rolled over light an angle in this prism group.It is different with general catoptron, and the angle of placing when prism has when a bit changing, and the emergent light direction is constant.Like this by the combination of above three parts, when forming each part of instrument internal a small amount of angle, change in location being arranged, the high stable optical system that the emergent light angle is constant, its angle value only depends on the actual angle of refractive prism.
Refractive prism system combines with prism with compensating plate, and formation makes the angle precision of prism not high, but the very high effect of overall accuracy, has reduced the technical difficulty of production and processing.
This instrument is with the small angle measurement device that is become by the glass light wedge shape.When measuring low-angle, be inserted into light path, rotate the glass wedge and change angle of light, can change the emergent light angle by trace, thereby realize small angle measurement.
Optical element (except the parallel light tube) in this instrument light path is formed by the optical element that after launching is optical parallel, and the interior reflective surface of part is the even number face.Wherein refractive prism can be made of the combined type catoptron.
Characteristics of the present utility model are that the standard angle that produces in this optical system has high stability, promptly when there is the variation of micro-line value or angle value in other components and parts in the system, all do not influence the Space Angle standard value.
Description of drawings
Fig. 1 is the structural representation of optical space angular standard measuring instrument.The directional light that parallel light tube 1 sends can produce one group of high precision normed space angle value through right-angle prism 2, pentaprism 3, refractive prism 5～16, and its uncertainty is better than 0.2 ".
Fig. 2 is the synoptic diagram of refractive prism.β, γ angle change according to certain proportion, make gyration several according to the needs change, concrete numerical value such as following table:
Sequence number corner β γ
5. 11 5° 132.5 140
6. 12 10° 100 145
7. 13 15° 127.5 150
8. 14 20° 125 155
9. 15 25° 122.5 160
10. 16 30° 120 165
Structure of the present utility model and principle of work specify as follows by accompanying drawing 1 given embodiment:
Fig. 1 is the structural representation of optical space angular standard measuring instrument.
Send a branch of directional light by parallel light tube (1), after pentaprism (3) turns to, arrive transit (17) through right-angle prism (2) directive pentaprism (3), imaging in the transit telescopic system, reading numerical values is as 0 ° of position.Pentaprism moves along guide rail then, sights refractive prism (5) respectively to (16).After directional light is penetrated respectively by refractive prism (5) to (16), directive transit (17), imaging respectively in its telescopic system, 5 °, 10 °, 15 °, 20 °, 25 °, 30 ° ,-5 ° ,-10 ° of reading numerical values ... the reading of-30 ° of positions.After this reading and standard value compared, obtain this transit and rotate 5 °～+ 30 ° in vertical direction, the angle composition error that is produced in the time of-5 °～-30 °.In order to measure the mircrometer gauge angle value, instrument is with an optical glass wedge (4).When needs, it can be changed over to and segment reader verification use in the light path.
Claims (5)
1, a kind of optical space angular standard measuring instrument, it is characterized in that this measuring instrument is mainly by a directional light generator that is used for producing directional light, it is parallel light tube, light that is parallel to each other that is made of a pentaprism and guide rail forms the enocscope group that device and arbitrary prism can roll over light an angle and forms.
2, by the described measuring instrument of claim 1, it is characterized in that being to improve overall accuracy, adopt compensating plate tie mutually with prism and mode constitute refractive prism.
3,, it is characterized in that the optical element in the instrument light path is formed for the optical element of optical parallel by launching the back, and the reflecting surface of part is the even number face by the described measuring instrument of claim 1.
4, by the described measuring instrument of claim 1, it is characterized in that refractive prism wherein can be made of the combined type catoptron.
5,, it is characterized in that for realizing small angle measurement, the small angle measurement device that instrument becomes with the glass light wedge shape by the described measuring instrument of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90209445 CN2066570U (en) | 1990-07-02 | 1990-07-02 | Standard measuring instrument for optic space angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90209445 CN2066570U (en) | 1990-07-02 | 1990-07-02 | Standard measuring instrument for optic space angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2066570U true CN2066570U (en) | 1990-11-28 |
Family
ID=4889518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90209445 Withdrawn CN2066570U (en) | 1990-07-02 | 1990-07-02 | Standard measuring instrument for optic space angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2066570U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100580366C (en) * | 2008-03-03 | 2010-01-13 | 中国科学院光电技术研究所 | Device for detecting large-sized perspective glass primary and secondary mirror spacing |
| CN102393255A (en) * | 2011-10-24 | 2012-03-28 | 中国科学院西安光学精密机械研究所 | System capable of solving inclination problem of narrow field of view lens in wave aberration detection and method thereof |
| CN102661854A (en) * | 2012-05-22 | 2012-09-12 | 成都光明光电股份有限公司 | Method for testing minimum deviation angle of triple prism and refractive index of optical material of triple prism |
| CN113091653A (en) * | 2021-04-19 | 2021-07-09 | 中国科学院国家天文台南京天文光学技术研究所 | Device and method for measuring angle freedom degree error of linear guide rail based on pentaprism |
-
1990
- 1990-07-02 CN CN 90209445 patent/CN2066570U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100580366C (en) * | 2008-03-03 | 2010-01-13 | 中国科学院光电技术研究所 | Device for detecting large-sized perspective glass primary and secondary mirror spacing |
| CN102393255A (en) * | 2011-10-24 | 2012-03-28 | 中国科学院西安光学精密机械研究所 | System capable of solving inclination problem of narrow field of view lens in wave aberration detection and method thereof |
| CN102393255B (en) * | 2011-10-24 | 2013-07-10 | 中国科学院西安光学精密机械研究所 | System capable of solving inclination problem of narrow field of view lens in wave aberration detection and method thereof |
| CN102661854A (en) * | 2012-05-22 | 2012-09-12 | 成都光明光电股份有限公司 | Method for testing minimum deviation angle of triple prism and refractive index of optical material of triple prism |
| CN113091653A (en) * | 2021-04-19 | 2021-07-09 | 中国科学院国家天文台南京天文光学技术研究所 | Device and method for measuring angle freedom degree error of linear guide rail based on pentaprism |
| CN113091653B (en) * | 2021-04-19 | 2022-10-04 | 中国科学院国家天文台南京天文光学技术研究所 | Device and method for measuring angle freedom degree error of linear guide rail based on pentaprism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |