CN1258072C - Inspection of parallelism of light axle of bending optical pipe - Google Patents
Inspection of parallelism of light axle of bending optical pipe Download PDFInfo
- Publication number
- CN1258072C CN1258072C CN 02133208 CN02133208A CN1258072C CN 1258072 C CN1258072 C CN 1258072C CN 02133208 CN02133208 CN 02133208 CN 02133208 A CN02133208 A CN 02133208A CN 1258072 C CN1258072 C CN 1258072C
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- light
- light pipe
- collimation
- replication
- parallelism
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Abstract
The present invention relates to a method for checking the parallelism of a light shaft of a replication light pipe in a collimation system. When the replication light pipe to be measured in the present invention has no parallel error, an incident light beam is parallel to the light shaft of a self-collimation parallel light pipe after reflected by a b side of a cubic prism; at the moment, the self-collimation imaging position of the self-collimation parallel light pipe is superposed with the position where the replication light pipe to be measured is not placed. When the replication light pipe has parallel error, the self-collimation imaging deviation amount of the self-collimation parallel light pipe is the parallel difference of the replication light pipe to be measured. A penta prism and the cubic prism are standard devices often used in optical check and are economic and convenient and have high precision. The present invention solves the problem that the background art is only suitable for measuring short replication light pipes. The present invention utilizes the characteristic that the adjacent surfaces of the cubic prism are mutually orthogonal to decrease adjustment links, and has the advantages of easy adjustment and low cost. The present invention provides a method satisfying the parallelism check requirement of the light shaft of the replication light pipe, and is suitable for checking the parallelism of the light shaft of the replication light pipe of any dimensions.
Description
Technical field: the invention belongs to the optical check technical field, relate to a kind of improvement that is used for the sighting system parallelism of light axle of bending optical pipe method of inspection.
Background technology: reflex light-tube generally is applied to sighting system, when the optical axis of sighting system is not in same surface level with the target that is aimed at, need carry out the benchmark conversion with reflex light-tube.Be to improve pointing accuracy, need do accurate the adjustment, make incident beam parallel, as shown in Figure 1 with outgoing beam to two catoptrons 1 and the catoptron 2 of reflex light-tube.Need the incident beam of reflex light-tube and the collimation of outgoing beam is that plain shaft parallelism is tested for this reason.The method of inspection in the past is as shown in Figure 2:
At first use 0.2 second auto-collimation collimator to bigbore plane mirror 6 autocollimatics, the size of plane mirror is greater than the spacing of two optical axises.Behind the autocollimatic, read the horizontal reading α of 0.2 second auto-collimation collimator
0, high low scale λ
0
Keep 0.2 second auto-collimation collimator and plane mirror position motionless, reflex light-tube to be measured is placed between 0.2 second auto-collimation collimator and the plane mirror, the incident end of reflex light-tube is aimed at 0.2 second auto-collimation collimator.0.2 the parallel beam that second auto-collimation collimator sent autocollimatic again after reflex light-tube and plane mirror reflects, read the horizontal reading α of 0.2 second auto-collimation collimator this moment and high low scale λ then the parallel error of two optical axises be:
Level: Δ α=α-α
0
Just: Δ λ=λ-λ
0
Detailed content of the present invention: the objective of the invention is to be applicable to short reflex light-tube for this method that solves background technology, the plane mirror that needs corresponding size for long reflex light-tube, and bore is greater than the plane mirror of 500mm, its processing cost height, install and adjust difficulty, be used to check problems such as the above reflex light-tube of 500mm is very uneconomical, the present invention designs the plain shaft parallelism that a kind of pentaprism method is checked reflex light-tube for this reason.
At first the incident beam that sends of auto-collimation collimator behind pentaprism vertical outgoing to the reflecting surface a of block prism, adjust block prism then, make incident beam return pentaprism by former road, again through the imaging of auto-collimation collimator autocollimatic and read this moment horizontal reading α
0With high low scale λ
0Reflex light-tube to be measured is placed between auto-collimation collimator and pentaprism and the block prism, make incident beam behind the reflecting surface b of reflex light-tube to be measured and block prism, return reflex light-tube to be measured, again through the imaging of auto-collimation collimator autocollimatic and read this moment horizontal reading α and high low scale λ, then the parallel error of reflex light-tube two optical axises is: level: Δ α=α-α
0, just: Δ λ=λ-λ
0, promptly finished the check of parallelism of light axle of bending optical pipe.
There was not parallel error in reflex light-tube to be measured when the present invention worked, incident beam is parallel with the optical axis of auto-collimation collimator through the b of block prism face beam reflected, and the position of the position of auto-collimation collimator autocollimatic imaging this moment when not putting reflex light-tube to be measured overlaps; When there was parallel error in reflex light-tube, the bias of auto-collimation collimator autocollimatic imaging this moment was the parallel error of reflex light-tube optical axis to be measured.
The advantage of measuring method of the present invention is to utilize pentaprism and block prism to solve in the background technology only to be applicable to short reflex light-tube because of plane mirror, the plane mirror that needs corresponding size for long reflex light-tube, and bore is greater than the plane mirror of 500mm, its processing cost height, install and adjust difficulty, be used to check problems such as the above reflex light-tube of 500mm is very uneconomical, pentaprism that uses in the parallelism of light axle of bending optical pipe method of inspection of the present invention and block prism all are normal component commonly used in the optical check, use its not only economy but also convenient, and precision height, utilize the mutually orthogonal characteristics of block prism adjacently situated surfaces to reduce and adjust link, be easy to adjust, cost is low again.The invention provides a kind of method that satisfies parallelism of light axle of bending optical pipe check needs, the present invention goes for the check of virtually any size parallelism of light axle of bending optical pipe.
Description of drawings:
Fig. 1 is the synoptic diagram of reflex light-tube
Fig. 2 is the synoptic diagram that background technology plane mirror method is surveyed the reflex light-tube collimation
Fig. 3 is the structural representation that pentaprism method of the present invention detects the reflex light-tube collimation
Embodiment is as shown in Figure 3: it comprises the middle catoptron 1 and the catoptron 2 of reflex light-tube to be measured.Block prism 3 adopts optical glass or metal material to make, and accuracy requirement can require to select according to measuring accuracy.Pentaprism 4 adopts optical glass to make, and precision was less than 1 second.Auto-collimation collimator 5 adopts 0.2 second auto-collimation collimator or other model.
Claims (1)
1, a kind of method of inspection of parallelism of light axle of bending optical pipe, it is characterized in that: at first the incident beam that sends of auto-collimation collimator behind pentaprism vertical outgoing to the reflecting surface a of block prism, adjust block prism then, make incident beam return pentaprism by former road, again through the imaging of auto-collimation collimator autocollimatic and read this moment horizontal reading α
0With high low scale λ
0Reflex light-tube to be measured is placed between auto-collimation collimator and pentaprism and the block prism, make incident beam behind the reflecting surface b of reflex light-tube to be measured and block prism, return reflex light-tube to be measured, again through the imaging of auto-collimation collimator autocollimatic and read this moment horizontal reading α and high low scale λ, then the parallel error of reflex light-tube two optical axises is: level: Δ α=α-α
0, just: Δ λ=λ-λ
0, promptly finished the check of parallelism of light axle of bending optical pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02133208 CN1258072C (en) | 2002-10-15 | 2002-10-15 | Inspection of parallelism of light axle of bending optical pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02133208 CN1258072C (en) | 2002-10-15 | 2002-10-15 | Inspection of parallelism of light axle of bending optical pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1490593A CN1490593A (en) | 2004-04-21 |
| CN1258072C true CN1258072C (en) | 2006-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02133208 Expired - Fee Related CN1258072C (en) | 2002-10-15 | 2002-10-15 | Inspection of parallelism of light axle of bending optical pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1258072C (en) |
Cited By (1)
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|---|---|---|---|---|
| CN109212775A (en) * | 2018-10-24 | 2019-01-15 | 长春理工大学 | A kind of bio-measurement instrument zero point arm debugging apparatus and method |
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|---|---|---|---|---|
| CN100451540C (en) * | 2006-01-12 | 2009-01-14 | 中国科学院长春光学精密机械与物理研究所 | Device for detecting three-axle parallel of large photoelectric monitoring equipment using thermal target technology |
| CN101261119B (en) * | 2008-05-06 | 2012-01-04 | 中国航空工业第一集团公司北京长城计量测试技术研究所 | Light beam parallelism and collimating fault checking method |
| CN102650731B (en) * | 2011-12-13 | 2016-05-04 | 北京理工大学 | A kind of light path device of turning back for sighting system |
| CN102654639B (en) * | 2011-12-13 | 2016-10-26 | 北京理工大学 | A kind of sighting system using deflection light path device |
| CN103759923B (en) * | 2014-01-20 | 2016-08-17 | 湖北航天技术研究院总体设计所 | Pointing instrumentation parallel optical axis orientation angle caliberating device |
| CN108508607A (en) * | 2018-03-30 | 2018-09-07 | 京东方科技集团股份有限公司 | Car-mounted display equipment |
| CN109059807B (en) * | 2018-10-29 | 2021-01-01 | 北京遥感设备研究所 | Mirror surface parallelism measuring device and measuring method for inner reflector of semi-closed structure |
| CN109387163B (en) * | 2018-12-08 | 2021-01-01 | 中国航空工业集团公司洛阳电光设备研究所 | Large-caliber portable optical axis parallelism calibration method |
| CN113267146B (en) * | 2021-05-12 | 2022-03-22 | 中国科学院西安光学精密机械研究所 | Method and system for calibrating parallelism of heterodromous deflection light pipe based on double-mirror splicing |
| CN114166476A (en) * | 2021-12-02 | 2022-03-11 | 中国科学院长春光学精密机械与物理研究所 | Optical axis parallelism detection method |
-
2002
- 2002-10-15 CN CN 02133208 patent/CN1258072C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109212775A (en) * | 2018-10-24 | 2019-01-15 | 长春理工大学 | A kind of bio-measurement instrument zero point arm debugging apparatus and method |
| CN109212775B (en) * | 2018-10-24 | 2020-09-08 | 长春理工大学 | Debugging device and method for zero arm of biological measuring instrument |
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| Publication number | Publication date |
|---|---|
| CN1490593A (en) | 2004-04-21 |
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