CN201163179Y - Light path parallel detection instrument - Google Patents
Light path parallel detection instrument Download PDFInfo
- Publication number
- CN201163179Y CN201163179Y CNU2008200713013U CN200820071301U CN201163179Y CN 201163179 Y CN201163179 Y CN 201163179Y CN U2008200713013 U CNU2008200713013 U CN U2008200713013U CN 200820071301 U CN200820071301 U CN 200820071301U CN 201163179 Y CN201163179 Y CN 201163179Y
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- pentaprism
- pentagonal prism
- auto
- parallel
- wedge
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- Expired - Lifetime
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Abstract
A light path parallel detector consists of an autocollimation collimator 1, a pentaprism 4, a pentaprism 5 and an optical wedge 6, wherein the pentaprism 4 is glued to the optical wedge 6 so as to correct the manufacturing error of the pentaprism; the angle mismachining tolerance of the pentaprism 4 is controlled within 1'; the wedge angle of the optical wedge 6 is twice over the angle mismachining tolerance of the pentaprism 4; the space between the pentaprism 4 and the pentaprism 5 can be correspondingly adjusted according to the distance variation of parallel beams 2 and 3, thereby detecting the parallelism of the parallel beams 2 and 3 at different distances; and the maximum adjusting distance can reach to 1.5 m.
Description
Technical field
The utility model relates to a kind of light path parallel detector, belongs to plain shaft parallelism detection technique field.
Background technology
Present light path parallel pick-up unit is to use bigbore auto-collimation collimator, detected two route parallel beams must be included within the bore of auto-collimation collimator during use, at this moment according to the parallel accuracy (list of references: multispectral system optical axis collimation combined measuring device that is imaged on the position judgment two route parallel beams of two imaging points on the focal surface of collimator tube, Zhan Qihai, applied optics, 2005 05 phases).There is following shortcoming in prior art, must make the distance of the bore of auto-collimation collimator greater than detected two route parallel beams, and increase with the measured parallel beam distance of two-way increases with regard to the bore that causes auto-collimation collimator for this.Yet the manufacturing cost increase of parallel light tube is with bore increases cube and even biquadratic are directly proportional, and just are difficult to processing when increasing to the 500mm left and right sides, and cost is very expensive, complicate fabrication process, and the cycle is long.
The utility model content
For solving heavy caliber auto-collimation collimator cost height, complicate fabrication process and cycle are long and can not detect the problem of two-way apart from distant parallel beam, and the utility model provides a kind of light path parallel detector.
As shown in Figure 1, constituting of a kind of light path parallel detector that the utility model provides: auto-collimation collimator 1, pentagonal prism 4, pentagonal prism 5 and wedge 6; Described pentagonal prism 4 glueds joint with wedge 6, be intended to proofread and correct the foozle of pentagonal prism, the angle mismachining tolerance of pentagonal prism 4 should be controlled at 1 ' within get final product, thereby reduce the machining precision and the cost of two pentagonal prisms 4,5, improve this Device Testing precision simultaneously, the angle of wedge of wedge 6 is the twice of pentagonal prism 4 angle mismachining tolerances; The spacing of two pentagonal prisms 4,5 can be made corresponding adjustment with the variable in distance of parallel beam 2,3, so can the collimation of the parallel beam 2,3 of different distance be detected, the ultimate range of adjustment can reach 1.5m.
In the utility model, utilized parallel beam that pentagonal prism is rotated insensitive characteristic in the optical axis cross section, and the spacing of two pentagonal prisms 4,5 can be made corresponding adjustment with the variable in distance of the tested parallel beam 2,3 of two-way, can the two-way parallel light path 2,3 of different distance be detected.But pentagonal prism must be considered the influence of light beam in the rotation of other both direction, so must carry out the optics self check to it before first the use or after changing pentagonal prism 4,5 distances, purpose is to make the parallel beam of turning back parallel with former parallel light beam 3.In the process of optics self check, use a mercury boxes that the surface level of a standard is provided.
Further specify optics self check process of the present utility model below in conjunction with accompanying drawing 2,3.
With reference to Fig. 2, the first step makes the upper surface of 1 pair of static mercury boxes 7 of auto-collimation collimator carry out autocollimation, and two cross-graduations of auto-collimation collimator 1 are overlapped.Second step kept auto-collimation collimator 1 motionless, pentagonal prism 4 is placed on auto-collimation collimator 1 before, mobile mercury boxes 7 is to the below of pentagonal prism 5.In two steps, the upper surface of mercury boxes 7 provides the surface level of a standard, needn't consider the flatness of placed side under the mercury boxes.If in second step, two cross-graduations in the auto-collimation collimator 1 still overlap, and illustrate that the parallel beam of turning back is parallel with former parallel light beam 3.But in concrete enforcement, optical element must be worked under the carrying of mechanical component, and the mobile of optical element be to realize by the mechanically moving part, and machining can not guarantee the accuracy requirement of optics, so the mechanical adjustment link must be arranged.Concrete mechanical support structure and adjustment link, as shown in Figure 3.Guide rail 8 is responsible for carrying pentagonal prism 4,5, and the rigidity of guide rail 8 is wanted to guarantee the accuracy requirement of the utility model device in self check and use.Pentagonal prism 5 can slide along guide rail 8, pentagonal prism 4 is fixed on to be regulated on the bent plate 9, regulate bent plate 9 and be fixed on the guide rail 8, regulate bent plate 9 and open an elongated slot, compensate the error that pentagonal prism 5 slides and brought on guide rail 8 with the pitching of the flexible adjustment pentagonal prism 4 of material own.In the self check process, it is motionless that pentagonal prism 5 slides into behind the suitable position locking, by the pitch regulation of regulating bent plate 9 two cross-graduations of auto-collimation collimator 1 overlapped, and the parallel beam that explanation is at this moment turned back is parallel with former parallel light beam 3.
The detection of dynamic process is as follows: after the optics self check is finished, tested parallel beam 3 turn 90 degrees by pentagonal prism 5 foldings, then by being placed on wedge 6 and the pentagonal prism 4 within auto-collimation collimator 1 bore, turn 90 degrees by folding again and enter auto-collimation collimator 1, on the focal plane of auto-collimation collimator 1, form a picture point, tested parallel beam 2 is directly injected within the auto-collimation collimator 1, on the focal plane of auto-collimation collimator 1, form another picture point, if two picture points overlap, parallel beam 2 is described, the 3rd, parallel, otherwise according to parallel beam 2,3 form the spacing of picture point and the focal length of auto-collimation collimator 1 on auto-collimation collimator 1 focal plane, calculate parallel beam 2,3 collimation;
Beneficial effect: the utility model device can detect the distant parallel beam of two-way distance, distance can reach 1.5m, do not need detected two route parallel beams is included within the bore of auto-collimation collimator, so just can reduce the bore of auto-collimation collimator, and the cost increase of heavy caliber auto-collimation collimator is with bore increases cube and even biquadratic are directly proportional; Pentagonal prism 4 glueds joint with wedge 6, can proofread and correct the foozle of pentagonal prism, thereby reduce the machining precision and the cost of two pentagonal prisms 4,5, improve this Device Testing precision simultaneously, in sum, the cost of the utility model system is very low, and manufacture process is simple, the cycle short, can detect the distant parallel beam of two-way distance.
Description of drawings
Fig. 1 is an optical texture synoptic diagram of the present utility model.
Fig. 2 is an optics self check synoptic diagram of the present utility model.
Fig. 3 is the mechanical support of pentagonal prism in the utility model system and adjusts structural representation.
Embodiment
Fig. 3 is the mechanical support of present embodiment and adjusts structural representation.After the distance between first use or adjustment pentagonal prism 4,5, carry out an optics self check, with reference to Fig. 2.The first step makes the upper surface of 1 pair of static mercury boxes 7 of auto-collimation collimator carry out autocollimation, and two cross-graduations of auto-collimation collimator 1 are overlapped.Second step, keep auto-collimation collimator 1 motionless, before pentagonal prism 4 is placed on auto-collimation collimator 1, mobile mercury boxes 7 is to the below of pentagonal prism 5, by the pitching of regulating bent plate 9 two cross-graduations of auto-collimation collimator 1 are overlapped then, illustrate that the parallel beam of turning back is parallel with former parallel light beam 3, finish the self check process.The testing process of present embodiment, with reference to Fig. 1, tested parallel beam 3 is turn 90 degrees by folding by pentagonal prism 5, then by wedge 6 and pentagonal prism 4, turn 90 degrees by folding again and enter auto-collimation collimator 1, on the focal plane of auto-collimation collimator 1, form a picture point, tested parallel beam 2 is directly injected within the auto-collimation collimator 1, on the focal plane of auto-collimation collimator 1, form another picture point, if two picture points overlap, two route parallel beams 2 is described, the 3rd, parallel, otherwise according to the tested parallel beam 2 of two-way, 3 form the spacing of picture point and the focal length of auto-collimation collimator 1 on auto-collimation collimator 1 focal plane, calculate the tested parallel beam 2 of two-way, 3 collimation.
Claims (1)
1, a kind of light path parallel detector is characterized in that it constitutes: auto-collimation collimator (1), pentagonal prism (4), pentagonal prism (5) and wedge (6); Described pentagonal prism (4) and wedge (6) glued joint, and the foozle that is intended to proofread and correct pentagonal prism, the angle mismachining tolerance of pentagonal prism (4) should be controlled at 1 ' within, the angle of wedge of wedge (6) is the twice of pentagonal prism (4) angle mismachining tolerance; The spacing of two pentagonal prisms (4), (5) can be made corresponding adjustment with the variable in distance of parallel beam (2), (3), can detect the parallel beam (2) of different distance, the collimation of (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200713013U CN201163179Y (en) | 2008-01-22 | 2008-01-22 | Light path parallel detection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200713013U CN201163179Y (en) | 2008-01-22 | 2008-01-22 | Light path parallel detection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201163179Y true CN201163179Y (en) | 2008-12-10 |
Family
ID=40184114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200713013U Expired - Lifetime CN201163179Y (en) | 2008-01-22 | 2008-01-22 | Light path parallel detection instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201163179Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113267146A (en) * | 2021-05-12 | 2021-08-17 | 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 |
-
2008
- 2008-01-22 CN CNU2008200713013U patent/CN201163179Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113267146A (en) * | 2021-05-12 | 2021-08-17 | 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 |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080122 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |