CN103217776A - Method for adjusting parallelism of axis of reflector and mechanical rotating shaft of Dove prism - Google Patents
Method for adjusting parallelism of axis of reflector and mechanical rotating shaft of Dove prism Download PDFInfo
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- CN103217776A CN103217776A CN2013101116180A CN201310111618A CN103217776A CN 103217776 A CN103217776 A CN 103217776A CN 2013101116180 A CN2013101116180 A CN 2013101116180A CN 201310111618 A CN201310111618 A CN 201310111618A CN 103217776 A CN103217776 A CN 103217776A
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Abstract
The invention discloses a method for adjusting the parallelism of an axis of a reflector and a mechanical rotating shaft of a Dove prism. The method comprises the following steps of adjusting an emitter theodolite to be parallel with the mechanical rotating shaft of a Dove prism component; adjusting a receiver theodolite to be in the same optical axis as the emitter theodolite; and adjusting eight screws for fixing the Dove prism on the Dove prism component to make the axis of the reflector of the Dove prism parallel with the mechanical rotating shaft of the Dove prism. The method has the characteristic that debugging instruments are simple in structures, simple and convenient to erect and adjust, and high in operability, a large amount of time for assembling a product is saved, the work efficiency of an operator is improved, and the method can be widely applied to adjusting the parallelism of the optical axis of the reflector and the mechanical rotating shaft of the Dove prism.
Description
Technical field
The invention belongs to ray machine and debug the field, relate generally to a kind of optics adjustment method, relate in particular to a kind of adjusting process of realizing that Dove prism reflecting surface axis is parallel with the machinery rotation axle.
Background technology
Panorama photoelectricity is seen the system that takes aim at, and can realize observer search, observation, aiming and the tracking of target to external world by rotation head mirror assembly.But in use observe the visual field and turn round because panorama photoelectricity is seen the system that takes aim at, observe also rotation thereupon of picture, produce and observe imaging and the inconsistent phenomenon of realistic objective with the orientation.In order to eliminate this phenomenon, generally in the light path of system, increase the picture that disappears and revolve prism, eliminate this influence thereby make picture produce backward rotation.Dove prism commonly used revolves prism as the picture that disappears in the parallel light path.
In use, require Dove prism reflecting surface axis parallel with the machinery rotation axle.But when debuging, Dove prism tends to produce the collimation error between the diaxon, after this error process panorama photoelectricity is seen and taken aim at system's eyepiece amplification, make the final imaging generation of system beat, error is big more, picture jumps over big, has all brought very big influence for observation and aiming.Therefore, require in the assembling of Dove prism, the collimation error control with its reflecting surface axis and machinery rotation axle (is generally less than 30 ") in very little scope as far as possible.In addition, in the assembling of Dove prism, because erection stress is excessive, also can cause its image quality to descend, and the image quality of Dove prism is the key factor that influences shooter's observation quality, and the bad meeting of image quality makes the observed object deformation that is distorted, and has a strong impact on observation effect.For this reason, the collimation that can in assembling, guarantee Dove prism reflecting surface axis and machinery rotation axle with and image quality, be a difficult problem in the Dove prism assembling.
Chinese patent 2010206871979.0 discloses a kind of system that realizes that Dove prism reflecting surface axis is parallel with the machinery rotation axle.This system is installed in the Dove prism assembly on the lathe, and the reflecting surface axis of adjustment Dove prism and the rotating shaft coaxle of lathe, mount pad to Dove prism carries out turning then, promptly reach Dove prism assembly turning axle and lathe rotating shaft coaxle, thereby realize that Dove prism reflecting surface axis is parallel with the machinery rotation axle.This method be owing to will carry out turning to the Dove prism mount pad, if protect improperly, there is the risk of damage in Dove prism mirror body; And in turning process, can't monitor the Dove prism mirror bodily form and become, influence final image quality.
Summary of the invention
What the present invention will solve is, low at the parallel adjustment precision of Dove prism reflecting surface axis with the machinery rotation axle, process is complicated and problem that Dove prism is deformed, provides a kind of effective realization Dove prism reflecting surface axis the adjusting process parallel with the machinery rotation axle.
For solving the problems of the technologies described above, adjusting process provided by the invention may further comprise the steps:
The first step, with the Dove prism assembly that Dove prism is not installed is that accurate Dove prism assembly is placed on the adjustable platform of level-off, catoptron is fixed on the incident end of accurate Dove prism assembly, the incident end of emissive source transit positive alignment Dove prism assembly is placed, and the exit end of reception sources transit positive alignment Dove prism assembly is placed;
Described Dove prism assembly comprises Dove prism, picture frame, two bearings, microscope base, eight screws and eight briquettings; Described picture frame is the right cylinder that length direction has square through hole, on the major axis of cylindrical each medial surface, have first semi-circular recesses and second semi-circular recesses perpendicular to length direction, four first semi-circular recesses are distributed on the cylindrical circumference, four second semi-circular recesses are distributed on cylindrical another circumference, and each semi-circular recesses center has the threaded hole that communicates with the picture frame outside surface; Described microscope base is that to have the pitch-row that has two adjustment holes and two adjustment holes on the cylindrical body of flat base and the circular arc end face corresponding with the distance of first semi-circular recesses and second semi-circular recesses, and the two ends of described picture frame are connected in the endoporus of described microscope base by described bearing respectively; Described briquetting is tabular and eight corresponding one by one being placed in eight semi-circular recesses of picture frame of briquetting of crescent moon, described Dove prism is arranged in the square through hole of described picture frame, the plane of light incidence of Dove prism and beam projecting face lay respectively at two ports of picture frame, and described eight screw correspondences are screwed in the described threaded hole and by compressing eight briquettings Dove prism is clamped;
Second step, described emissive source transit is focused to the infinite distance, rotate accurate Dove prism assembly, occur on the graticule of emissive source transit through mirror reflects and do circular motion the division line of emissive source transit autocollimatic as the time, whether the motion center of circle of observing this autocollimatic picture by the eyepiece of emissive source transit overlaps with the center of emissive source transit graticule, if do not overlap, then regulate the orientation handwheel and the pitching handwheel of emissive source transit, overlap with the center of emissive source transit graticule until the motion center of circle of autocollimatic picture;
The 3rd step, regulate the orientation handwheel and the pitching handwheel of reception sources transit, the cross-graduation that the emissive source transit on reception sources transit graticule, occurs as the time, the reception sources transit is focused to the cross-graduation plate of emissive source transit, the cross-graduation of observing the emissive source transit by the eyepiece of reception sources transit similarly is not overlap with the cross-graduation center of reception sources transit, if do not overlap, then regulate the orientation handwheel and the pitching handwheel of reception sources transit, become cross-graduation center at the reception sources transit until the cross-graduation picture of emissive source transit;
The 4th step, take off catoptron from accurate Dove prism assembly, after Dove prism is assembled to accurate Dove prism assembly, rotate the Dove prism assembly, the division line of emissive source transit is appearring on the graticule of reception sources transit after the reflection of the reflecting surface of Dove prism and make the graduation picture of circular motion, observe the picture element whether this graduation exceeds tolerance as the diameter of movement locus and observe this graduation picture simultaneously by the eyepiece of reception sources transit, if graduation exceeds tolerance or graduation as unintelligible as the diameter of movement locus, then symmetry is regulated described eight screws, satisfies as the diameter of circular path that franchise requires and picture element satisfies the requirement of clear bright nothing hangover until this graduation;
In the 5th step, encapsulating solidifies in the peripheral clearance between described Dove prism and described Dove prism frame.
Beneficial effect of the present invention is embodied in the following aspects:
(1) the present invention utilizes the optical axis relation of equivalence of Dove prism optical axis, Dove prism assembly machinery rotation axle and emissive source transit emergent light; set up calibration apparatus, avoided Dove prism in the existing adjustment technology improper and cause the risk of damaging the mirror body in the turning process protection.
(2) the present invention is provided with the adjustment link in the machinery rotation mechanism of Dove prism assembly, by the regulating block in the symmetry adjustment machinery rotation mechanism, make Dove prism reflecting surface axis and machinery rotation axle clamp angle adjustable positions, can with the collimation error control of its reflecting surface axis and machinery rotation axle in very little scope (be generally less than 30 "); Be in course of adjustment, can observe the picture that receives by the reception sources transit simultaneously, check the Dove prism image quality, can adjust at once as not meeting the demands, avoid Dove prism that the nonadjustable problem of deformation takes place when the machined into adjustment, shortened assembly period greatly.
(3) in invention, fix with eight briquettings around the Dove prism mirror body, and the slit encapsulating between mirror body and picture frame solidifies after the prism adjustment finishes.This kind structure is fixed, but the impact of load level direction, vertical direction 30g acceleration, the frequency vibration of 75Hz.Can be widely used in the bigger Dove prism adjustment of clear aperture.
Description of drawings
Fig. 1 is that the test macro of realizing adjusting process of the present invention is formed synoptic diagram.
Fig. 2 is the assembling synoptic diagram of Dove prism assembly among the present invention.
Fig. 3 is the left view of Fig. 2.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing and preferred embodiment.
The adjusting process that the preferred embodiment of the present invention provides may further comprise the steps:
The first step is according to the calibration apparatus that sets up shown in Figure 1.At first combined diagram level is positioned on the adjustable platform 1,, makes the bubble of combined diagram level placed in the middle by regulating the knob on adjustable platform 1 base 5; Catoptron 6 is fixed on the incident end of the Dove prism assembly (being accurate Dove prism) that is unkitted Dove prism, the incident end of emissive source transit 3 positive alignment Dove prism assemblies is placed, the exit end of reception sources transit 4 positive alignment Dove prism assemblies is placed.
Briquetting 2-6 is the metal swing link.Eight corresponding one by one being placed in eight semi-circular recesses of picture frame 2-2 of briquetting 2-6, Dove prism 2-1 is arranged in the square through hole of picture frame 2-2, its plane of light incidence and beam projecting face are positioned at two ports of picture frame 2-2, and eight screw correspondences are screwed in the threaded hole of picture frame 2-2 and prop up eight briquetting 2-6 Dove prism 2-1 is clamped; At this moment, Dove prism 2-1 has constituted complete Dove prism assembly 2 with accurate Dove prism assembly.
Second step, regulate emissive source transit 3 focal lengths to the infinite distance, rotate accurate Dove prism assembly, occur on the graticule of emissive source transit 3 through mirror reflects and do circular motion 3 division lines of emissive source transit autocollimatic as the time, whether the motion center of circle of observing this autocollimatic picture by the eyepiece of emissive source transit 3 overlaps with the center of emissive source transit 3 graticules, if do not overlap, then regulate the orientation handwheel and the pitching handwheel of emissive source transit 3, the motion center of circle until the autocollimatic picture overlaps with the center of graticule, at this moment, emissive source transit 3 optical axises are parallel with the machinery rotation axle of accurate Dove prism assembly.
Under the perfect condition that emissive source transit 3 optical axises overlap with the machinery rotation axle of accurate Dove prism assembly and catoptron 6 is vertical with emissive source transit 3 optical axises, 3 division lines of emissive source transit should overlap with the graduation center of emissive source transit 3 through the autocollimatic picture of catoptron 6, but because the influence of mismachining tolerance and alignment error, the machinery rotation axle with accurate Dove prism assembly was not vertical when catoptron 6 was fixed on the incident end of accurate Dove prism assembly, therefore, 3 division lines of emissive source transit will be made circular motion along with the rotation of catoptron 6 through the autocollimatic picture of catoptron 6 reflections, if the center of circle of this circular motion does not overlap with the graduation center of emissive source transit 3, illustrate that the machinery rotation axle of the optical axis of emissive source transit 3 and accurate Dove prism assembly is not parallel.
The 3rd step, regulate the orientation handwheel and the pitching handwheel of reception sources transit 4, the cross-graduation that emissive source transit 3 on reception sources transit 4 graticules, occurs as the time, reception sources transit 4 is focused to the cross-graduation plate of emissive source transit 3, and the cross-graduation of observing emissive source transit 3 by the eyepiece of reception sources transit 4 similarly is not overlap with the cross-graduation center of reception sources transit 4.If do not overlap, then regulate the orientation handwheel and the pitching handwheel of reception sources transit 4, become cross-graduation center until the cross-graduation picture of emissive source transit 3 at reception sources transit 4.At this moment, emissive source transit 3 and reception sources transit 4 same optical axises.
The 4th step, take off catoptron 6 from accurate Dove prism assembly, Dove prism 2-1 is assembled in the accurate Dove prism assembly by shown in Figure 2, form complete Dove prism assembly 2; Rotate Dove prism assembly 2,3 division lines of emissive source transit are appearring on the graticule of reception sources transit 4 after the reflection of the reflecting surface of Dove prism 2-1 and make the graduation picture of circular motion, observe the picture element whether this graduation exceeds tolerance as the diameter of movement locus and will observe the graduation picture simultaneously by the eyepiece of reception sources transit 4, if graduation exceeds tolerance or graduation as unintelligible as the diameter of movement locus, then symmetry is regulated eight screw 2-5, satisfies as the diameter of circular path that franchise requires and picture element satisfies the requirement of clear bright nothing hangover until this graduation.This moment, the reflecting surface axis of Dove prism 2-1 was parallel with the machinery rotation axle of Dove prism assembly 2.
Adjustment is positioned at up and down two groups of four screw 2-5 of Dove prism 2-1 reflecting surface, can change Dove prism 2-1 on pitch orientation skew and make the reflecting surface axis of Dove prism 2-1 parallel with the machinery rotation axle of Dove prism assembly 2 in pitch orientation; Adjustment is positioned at two groups of four screw 2-5 on the Dove prism 2-1 horizontal direction, it is parallel with the machinery rotation axle of Dove prism assembly 2 in the horizontal direction to change Dove prism 2-1 reflecting surface axis, finally makes the reflecting surface axis of Dove prism 2-1 parallel with the machinery rotation axle of Dove prism assembly 2.
Dove prism 2-1 in picture frame 2-2 about, the height change in displacement adjusts briquetting 2-6 by slack adjuster 2-5 and realizes.Before screw 2-5 tightens, there is not extruding around the Dove prism 2-1, the picture element of Dove prism does not have influence, after adjusting Dove prism 2-1 by screw 2-5, its reflecting surface axis is parallel with the machinery rotation axle, be subjected to briquetting 2-6 extruding around the Dove prism 2-1, the Dove prism picture element changes, and observes the Dove prism picture element with reception sources transit 4 eyepieces and whether satisfies debugging back requirement.
In the 5th step, irritate the curing of 704 silicon rubber in the peripheral clearance 2-7 between Dove prism 2-1 and Dove prism frame 2-2, thereby effectively realized the depth of parallelism requirement of Dove prism 2-1 reflecting surface axis and its machinery rotation axle.
Claims (1)
1. adjusting process that Dove prism reflecting surface axis is parallel with the machinery rotation axle is characterized in that this method may further comprise the steps:
The first step, the Dove prism assembly (2) that Dove prism (2-1) will be installed is that accurate Dove prism assembly is placed on the adjustable platform of level-off (1), catoptron (6) is fixed on the incident end of accurate Dove prism assembly (2), the incident end of emissive source transit (3) positive alignment Dove prism assembly (2) is placed, and the exit end of reception sources transit (4) positive alignment Dove prism assembly is placed;
Described Dove prism assembly (2) comprises Dove prism (2-1), picture frame (2-2), two bearings (2-3), microscope base (2-4), eight screws (2-5) and eight briquettings (2-6); Described picture frame (2-2) has the right cylinder of square through hole for length direction, on the major axis of cylindrical each medial surface, have first semi-circular recesses and second semi-circular recesses perpendicular to length direction, four first semi-circular recesses are distributed on the cylindrical circumference, four second semi-circular recesses are distributed on cylindrical another circumference, and each semi-circular recesses center has the threaded hole that communicates with picture frame (2-2) outside surface; Described microscope base (2-4) is corresponding with the distance of first semi-circular recesses and second semi-circular recesses for having the pitch-row that has two adjustment holes and two adjustment holes on the cylindrical body of flat base and the circular arc end face, and the two ends of described picture frame (2-2) are connected in the endoporus of described microscope base (2-4) by described bearing (2-3) respectively; Described briquetting (2-6) for tabular and eight briquettings (2-6) of crescent moon one by one correspondence be placed in eight semi-circular recesses of picture frame (2-2), described Dove prism (2-1) is arranged in the square through hole of described picture frame (2-2), the plane of light incidence of Dove prism (2-1) and beam projecting face lay respectively at two ports of picture frame (2-2), and described eight screw correspondences are screwed in the described threaded hole and by compressing eight briquettings (2-6) Dove prism (2-1) is clamped;
Second step, described emissive source transit (3) is focused to the infinite distance, rotate accurate Dove prism assembly, occur on the graticule of emissive source transit (3) through catoptron (6) reflect and do circular motion emissive source transit (3) division line autocollimatic as the time, whether the motion center of circle of observing this autocollimatic picture by the eyepiece of emissive source transit (3) overlaps with the center of emissive source transit (3) graticule, if do not overlap, then regulate the orientation handwheel and the pitching handwheel of emissive source transit (3), overlap with the center of emissive source transit (3) graticule until the motion center of circle of autocollimatic picture;
The 3rd step, regulate the orientation handwheel and the pitching handwheel of reception sources transit (4), the cross-graduation that emissive source transit (3) on reception sources transit (4) graticule, occurs as the time, reception sources transit (4) is focused to the cross-graduation plate of emissive source transit (3), the cross-graduation of observing emissive source transit (3) by the eyepiece of reception sources transit (4) similarly is not overlap with the cross-graduation center of reception sources transit (4), if do not overlap, then regulate the orientation handwheel and the pitching handwheel of reception sources transit (4), become cross-graduation center at reception sources transit (4) until the cross-graduation picture of emissive source transit (3);
The 4th step, take off catoptron (6) from accurate Dove prism assembly, after Dove prism (2-1) is assembled to accurate Dove prism assembly, rotate Dove prism assembly (2), emissive source transit (3) division line is appearring on the graticule of reception sources transit 4 after the reflection of the reflecting surface of Dove prism (2-1) and make the graduation picture of circular motion, observe the picture element whether this graduation exceeds tolerance as the diameter of movement locus and observe this graduation picture simultaneously by the eyepiece of reception sources transit (4), if graduation exceeds tolerance or graduation as unintelligible as the diameter of movement locus, then symmetry is regulated described eight screws (2-5), satisfies as the diameter of circular path that franchise requires and picture element satisfies the requirement of clear bright nothing hangover until this graduation;
In the 5th step, encapsulating solidifies in the peripheral clearance (2-7) between described Dove prism (2-1) and described Dove prism frame (2-2).
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| CN104317033A (en) * | 2014-10-29 | 2015-01-28 | 云南北方驰宏光电有限公司 | Method for adjusting reflectors through decentration measuring instrument |
| CN105068259A (en) * | 2015-08-13 | 2015-11-18 | 中科院南京天文仪器有限公司 | Precision adjusting method used for two-dimensional scanning device optical device normal angle |
| CN105807390A (en) * | 2016-04-27 | 2016-07-27 | 西安应用光学研究所 | Auxiliary device for correcting large-space lens barrel optical axis |
| CN106291863A (en) * | 2016-08-30 | 2017-01-04 | 中国电子科技集团公司第八研究所 | Dove prism installation and debugging method for fiber rotation connector |
| CN108801294A (en) * | 2018-06-08 | 2018-11-13 | 西安应用光学研究所 | A kind of more plain shaft parallelism calibration apparatus and method for the more optical axis systems of Space Rotating |
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| CN104142579A (en) * | 2014-07-23 | 2014-11-12 | 西安空间无线电技术研究所 | Adjustment method for reflectors of periscopic type acquisition and tracking mechanism |
| CN104317033A (en) * | 2014-10-29 | 2015-01-28 | 云南北方驰宏光电有限公司 | Method for adjusting reflectors through decentration measuring instrument |
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