CN202916479U - System for realizing accurate positioning of optical axis of off-axis non-spherical reflector - Google Patents
System for realizing accurate positioning of optical axis of off-axis non-spherical reflector Download PDFInfo
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- CN202916479U CN202916479U CN201220615173.0U CN201220615173U CN202916479U CN 202916479 U CN202916479 U CN 202916479U CN 201220615173 U CN201220615173 U CN 201220615173U CN 202916479 U CN202916479 U CN 202916479U
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- spherical reflector
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Abstract
The utility model relates to a system for realizing accurate positioning of an optical axis of an off-axis non-spherical reflector. The system comprises an autocollimation theodolite, a curvature radius center positioning tool for determining the position of the curvature radius center of a non-spherical reflector to be positioned, a vertex center positioning tool for determining the position of the vertex center of the non-spherical reflector to be positioned, a large-caliber planar mirror, an internal focusing telescope and sheet glass adhered to the back side of the non-spherical reflector to be positioned; and the autocollimation theodolite, the urvature radius center positioning tool, the vertex center positioning tool, the large-caliber planar mirror and the internal focusing telescope are arranged on the same optical axis successively. The utility model provides the system for realizing accurate positioning of the optical axis of the off-axis non-spherical reflector which is high in positioning accuracy, easy to adjust and convenient to use.
Description
Technical field
The utility model belongs to optical precision and debugs the field, relates to a kind of mirror optical axis Precise Position System, relates in particular to a kind of realization off-axis non-spherical reflector optical axis Precise Position System.
Background technology
Non-spherical reflector successively is applied to centered optical system, off-axis optical system with its unique advantage, more till now off-axis optical system.For the off-axis optical system, because the singularity of its system, be that optical element in the optical system does not have common optical axis, and because the off-axis optical element does not have the optical axis center part, so that utilize the Method of Adjustment of conventional can not realize effectively debuging of this type systematic.In addition, because off-axis optics system optics quantity is more, it is too many to adjust variable when the method for utilizing area of computer aided to debug is assisted adjustment to system, reduces so that adjust validity, can not realize the effective location of each off-axis optical element in the off-axis optics.In addition, the off-axis spherical reflector has unique radius-of-curvature, so the location at its radius-of-curvature center is comparatively easy; And off-axis non-spherical reflector radius-of-curvature center is not unique, the line at a plurality of radius-of-curvature of its aspheric surface center is as its optical axis, the optical axis position that needs when system is debug accurately to determine each non-spherical reflector comes the good image quality of assurance system, and is therefore more difficult for the accurate location of off-axis non-spherical reflector optical axis.
The utility model content
In order to solve the above-mentioned technical matters that exists in the background technology, the utility model provides a kind of bearing accuracy height, has been easy to adjust and realization off-axis non-spherical reflector optical axis Precise Position System easy to use.
Technical solution of the present utility model is: the utility model provides a kind of realization off-axis non-spherical reflector optical axis Precise Position System, and its special character is: described system comprises autocollimation theodolite, is used for determining the radius-of-curvature centralized positioning frock of non-spherical reflector radius-of-curvature to be positioned center, is used for determining summit centralized positioning frock, heavy-calibre planar catoptron, the internal focusing telescope of center, non-spherical reflector to be positioned summit and the sheet glass that is attached to the non-spherical reflector to be positioned back side; Described autocollimation theodolite, radius-of-curvature centralized positioning frock, summit centralized positioning frock, heavy-calibre planar catoptron and internal focusing telescope are successively set on the same optical axis.
The graticule that above-mentioned radius-of-curvature centralized positioning frock and summit centralized positioning frock include High Accuracy Flat, rotating shaft and contain crosshair; Be provided with endoporus on the described High Accuracy Flat; Described rotating shaft is arranged in the endoporus of High Accuracy Flat; The described graticule that contains crosshair vertically is arranged in the rotating shaft and with rotating shaft and carries out free rotation in the endoporus of High Accuracy Flat; Described internal focusing telescope with contain the graticule of crosshair with the optical axis setting.
Above-mentioned rotating shaft is T-shaped, and described T-shaped rotating shaft comprises horizontal segment and vertical section of linking to each other with horizontal segment; In the described vertical section endoporus that is arranged on High Accuracy Flat; The described graticule that contains crosshair vertically is arranged on the horizontal segment of T-shaped rotating shaft.
Gap between above-mentioned T-shaped vertical section and the High Accuracy Flat endoporus is less than 0.01mm.
The above-mentioned graticule that contains crosshair is single graticule or combination graticule; The described graticule that contains crosshair is combination during graticule, described combination graticule comprise the graticule that contains crosshair and with the sheet glass of the equal size of graticule; Described graticule and the sheet glass that contains crosshair fits together.
Above-mentioned radius-of-curvature centralized positioning frock and summit centralized positioning frock also comprise the base that is arranged between High Accuracy Flat and the rotating shaft; Described base stretches in the endoporus of High Accuracy Flat and with High Accuracy Flat and is fixed together; Described rotating shaft is arranged in the base and carries out the gap less than the rotation of 0.01mm in base.
Above-mentioned radius-of-curvature centralized positioning frock and summit centralized positioning frock also comprise the graduation sheet frame; Described graduation sheet frame vertically is arranged on the horizontal segment of rotating shaft; The described graticule that contains crosshair is embedded in the graduation sheet frame.
Above-mentioned radius-of-curvature centralized positioning frock and summit centralized positioning frock also comprise the web joint that is horizontally set in the rotating shaft; Described graduation sheet frame is arranged on the web joint.
The utility model has the advantages that:
The utility model provides a kind of realization off-axis non-spherical reflector optical axis Precise Position System, concrete accurate location of realizing optical axis by centralized positioning auxiliary mould and the autocollimation principle of design.For radius-of-curvature center and center, summit that can fine assurance non-spherical reflector, designed High Accuracy Flat according to the light path trend, this flat board is processed by high-accuracy mechanical, flatness is better than 0.005mm, and guaranteeing that the center, hole on this High Accuracy Flat strictly overlaps with the radius-of-curvature center of non-spherical reflector and the Theoretical Design position at center, summit, precision is up to 0.01mm.Whole fixture system provided by the utility model overlaps with the high precision of the turning axle of dull and stereotyped endoporus as long as realize graticule center of reticule line, just can find the visible centre of sphere and the visible summit of off-axis non-spherical reflector, thereby utilize the autocollimation principle, realize the accurate location of non-spherical reflector optical axis.After the utility model utilizes the centralized positioning auxiliary mould to realize the accurate location in radius-of-curvature center and center, summit of non-spherical reflector, its the two the line of centres is the optical axis of non-spherical reflector, adjust the position of non-spherical reflector according to autocollimatic principle, so that the autocollimatic picture of non-spherical reflector glass sheet that develop at the back side strictly overlaps with radius-of-curvature revenue centre positioning tool autocollimatic picture and summit centralized positioning frock graticule autocollimatic picture respectively, can realize the location in non-spherical reflector pitching and orientation.According to optical principle, if the differentiation plate of the cross in the radius-of-curvature centralized positioning frock and non-spherical reflector radius-of-curvature center superposition, this moment, the cross-graduation plate similarly was what overlap with its autocollimatic that becomes through non-spherical reflector, thereby realize the location in non-spherical reflector translation orientation, finally determined the optical axis position of non-spherical reflector.The utility model has solved in the prior art realizes low, complicated this problem of adjustment process of off-axis non-spherical reflector optical axis bearing accuracy, has the bearing accuracy height, is easy to the advantage such as adjustment.
Description of drawings
Fig. 1 is based on the utility model and system is provided and realizes the pinpoint synoptic diagram of the recessed mirror optical axis of off-axis aspheric surface;
Fig. 2 is based on the utility model and system is provided and realizes the pinpoint synoptic diagram of off-axis aspheric surface convex reflector optical axis;
Fig. 3 is the structural representation of the positioning tool that adopts of the utility model;
Wherein:
The 1-autocollimation theodolite; 2-radius-of-curvature centralized positioning frock; 3-summit centralized positioning frock; 4-off-axis aspheric surface; 5-sheet glass; 6-heavy-calibre planar catoptron; The 7-internal focusing telescope; The 21-High Accuracy Flat; The 22-base; The 23-rotary shaft rack; The 24-web joint; 25-graduation sheet frame.
Embodiment
Referring to Fig. 3, the utility model provides a kind of realization off-axis non-spherical reflector optical axis Precise Position System, and this system comprises autocollimation theodolite 1, be used for to determine the radius-of-curvature centralized positioning frock 2 of the radius-of-curvature center of non-spherical reflector to be positioned, be used for determining summit centralized positioning frock 3, heavy-calibre planar catoptron 6, the internal focusing telescope 7 of center, summit of non-spherical reflector 4 to be positioned and the sheet glass 5 that is attached to the non-spherical reflector back side to be positioned; Autocollimation theodolite, radius-of-curvature centralized positioning frock, summit centralized positioning frock, heavy-calibre planar catoptron and internal focusing telescope are successively set on the same optical axis.The graticule that radius-of-curvature centralized positioning frock and summit centralized positioning frock include High Accuracy Flat, rotating shaft and contain crosshair; Be provided with endoporus on the High Accuracy Flat; Rotating shaft is arranged in the endoporus of High Accuracy Flat; The graticule that contains crosshair vertically is arranged in the rotating shaft and with rotating shaft and carries out free rotation in the endoporus of High Accuracy Flat; Internal focusing telescope with contain the graticule of crosshair with the optical axis setting.
It is T-shaped that rotating shaft is, and T-shaped rotating shaft comprises horizontal segment and vertical section of linking to each other with horizontal segment; Vertically section is arranged in the endoporus of High Accuracy Flat; The graticule that contains crosshair vertically is arranged on the horizontal segment of T-shaped rotating shaft.
Gap between T-shaped vertical section and the High Accuracy Flat endoporus is less than 0.01mm.
The graticule that contains crosshair is single graticule or combination graticule; The graticule that contains crosshair is combination during graticule, the combination graticule comprise the graticule that contains crosshair and with the sheet glass of the equal size of graticule; The graticule and the sheet glass that contain crosshair fit together.
Radius-of-curvature centralized positioning frock and summit centralized positioning frock also comprise the base that is arranged between High Accuracy Flat and the rotating shaft; Base stretches in the endoporus of High Accuracy Flat and with High Accuracy Flat and is fixed together; Rotating shaft is arranged in the base and carries out the gap less than the rotation of 0.01mm in base.
Radius-of-curvature centralized positioning frock and summit centralized positioning frock also comprise the graduation sheet frame; The graduation sheet frame vertically is arranged on the horizontal segment of rotating shaft; The graticule that contains crosshair is embedded in the graduation sheet frame.
Radius-of-curvature centralized positioning frock and summit centralized positioning frock also comprise the web joint that is horizontally set in the rotating shaft; The graduation sheet frame is arranged on the web joint.
Radius-of-curvature centralized positioning frock wherein and summit centralized positioning frock can accurately be located radius-of-curvature center and the center, summit of non-spherical reflector.
Radius-of-curvature centralized positioning frock wherein and summit centralized positioning frock can accurately be located radius-of-curvature center and the center, summit of non-spherical reflector.
Comprise High Accuracy Flat, rotating shaft, contain graticule and the high precision microscope of crosshair; Be provided with endoporus on the High Accuracy Flat; Rotating shaft is arranged in the endoporus of High Accuracy Flat; The graticule that contains crosshair vertically is arranged in the rotating shaft and with rotating shaft and carries out free rotation in the endoporus of High Accuracy Flat; The high precision microscope with contain the graticule of crosshair with the optical axis setting.It is T-shaped that rotating shaft is, and T-shaped rotating shaft comprises horizontal segment and vertical section of linking to each other with horizontal segment; Vertically section is arranged in the endoporus of High Accuracy Flat; The graticule that contains crosshair vertically is arranged on the horizontal segment of T-shaped rotating shaft.Gap between T-shaped vertical section and the High Accuracy Flat endoporus is less than 0.01mm.The graticule that contains crosshair is single graticule or combination graticule.The combination graticule comprise the graticule that contains crosshair and with the sheet glass of the equal size of graticule; The graticule and the sheet glass that contain crosshair fit together.System also comprises the base that is arranged between High Accuracy Flat and the rotating shaft; Base stretches in the endoporus of High Accuracy Flat and with High Accuracy Flat and is fixed together; Rotating shaft is arranged in the base and carries out the gap less than the rotation of 0.01mm in base.System also comprises the graduation sheet frame; The graduation sheet frame vertically is arranged on the horizontal segment of rotating shaft; The graticule that contains crosshair is embedded in the graduation sheet frame.System also comprises the web joint that is horizontally set in the rotating shaft; The graduation sheet frame is arranged on the web joint.
For radius-of-curvature center that can fine each spherical reflector of assurance, designed High Accuracy Flat 21 according to the light path trend, process by high-accuracy mechanical, guarantee center, hole and spherical reflector on this High Accuracy Flat 21 radius-of-curvature Center position the two be strictly to overlap, precision is 0.01mm.
The cylindrical of base 22 grinds with the endoporus high precision on the High Accuracy Flat 21 and cooperates, and guarantees tolerance clearance less than 0.01mm, and is connected with dull and stereotyped by screw.
In the graduation sheet frame 25 graticule is housed, and is connected the location with web joint by screw.Whole fixture system overlaps with the high precision of the turning axle of dull and stereotyped endoporus as long as realize graticule center of reticule line, just can find the visible centre of sphere of each off-axis spherical reflector, thereby utilize the autocollimation principle, realize the accurate location at catoptron center, bearing accuracy can reach 0.01mm.
Referring to Fig. 1, based on system provided by the utility model, recessed non-spherical reflector to be adjusted, its specific works process is:
1. the cross curve center of the cross curve center of radius-of-curvature centralized positioning frock and summit centralized positioning frock has determined that jointly the optical axis of non-spherical reflector points to, adjust autocollimation theodolite make its respectively with radius-of-curvature centralized positioning frock and summit centralized positioning frock autocollimation punching, thereby guarantee that the autocollimation theodolite optical axis overlaps with the recessed mirror optical axis of aspheric surface;
2. adjust the position of heavy-calibre planar catoptron, make its autocollimation in transit, realization transit optical axis is parallel with the plane mirror optical axis;
3. translation autocollimation theodolite, so that can see simultaneously the autocollimatic picture of heavy-calibre planar catoptron and non-spherical reflector glass sheet that develop at the back side in the transit visual field, and assurance heavy-calibre planar catoptron and transit autocollimation, the verticality of the non-spherical reflector back side and optical axis is guaranteed that by machining precision back side benchmark can represent the optical axis straight line of non-spherical reflector;
4. adjust orientation and the pitching of non-spherical reflector, so that the sheet glass at non-spherical reflector back side autocollimation in transit, thereby guarantee that the sheet glass optical axis is parallel with the transit optical axis, and then realize that the non-spherical reflector optical axis is parallel with the graticule optical axis;
5. the heavy-calibre planar catoptron is removed, adjust the position instrument of internal focusing telescope, so that the cross curve of radius-of-curvature centralized positioning frock graticule and summit centralized positioning frock graticule overlaps with cross curve in the internal focusing telescope visual field, namely the graticule frock realizes punching in internal focusing telescope;
6. illuminate graticule;
7. upper and lower translation non-spherical reflector makes autocollimatic image position that the graticule crosshair becomes through spherical mirror in the field of view center of internal focusing telescope;
8. carefully adjustment autocollimatic picture and graticule are clear simultaneously, in order to improve precision, can use the high magnification instrument to monitor, wish that graticule and autocollimatic are as coplanarity＜0.02mm.
Referring to Fig. 2, based on system provided by the utility model, identical to step and concave spherical mirror set-up procedure that the convex aspheric surface catoptron is adjusted.
Claims (8)
1. realize off-axis non-spherical reflector optical axis Precise Position System for one kind, it is characterized in that: described system comprises autocollimation theodolite, is used for determining the radius-of-curvature centralized positioning frock of non-spherical reflector radius-of-curvature to be positioned center, is used for determining summit centralized positioning frock, heavy-calibre planar catoptron, the internal focusing telescope of center, non-spherical reflector to be positioned summit and the sheet glass that is attached to the non-spherical reflector to be positioned back side; Described autocollimation theodolite, radius-of-curvature centralized positioning frock, summit centralized positioning frock, heavy-calibre planar catoptron and internal focusing telescope are successively set on the same optical axis.
2. realization off-axis non-spherical reflector optical axis Precise Position System according to claim 1 is characterized in that: the graticule that described radius-of-curvature centralized positioning frock and summit centralized positioning frock include High Accuracy Flat, rotating shaft and contain crosshair; Be provided with endoporus on the described High Accuracy Flat; Described rotating shaft is arranged in the endoporus of High Accuracy Flat; The described graticule that contains crosshair vertically is arranged in the rotating shaft and with rotating shaft and carries out free rotation in the endoporus of High Accuracy Flat; Described internal focusing telescope with contain the graticule of crosshair with the optical axis setting.
3. realization off-axis non-spherical reflector optical axis Precise Position System according to claim 2, it is characterized in that: described rotating shaft is T-shaped, and described T-shaped rotating shaft comprises horizontal segment and vertical section of linking to each other with horizontal segment; In the described vertical section endoporus that is arranged on High Accuracy Flat; The described graticule that contains crosshair vertically is arranged on the horizontal segment of T-shaped rotating shaft.
4. realization off-axis non-spherical reflector optical axis Precise Position System according to claim 3 is characterized in that: the gap between described T-shaped vertical section and the High Accuracy Flat endoporus is less than 0.01mm.
5. realization off-axis non-spherical reflector optical axis Precise Position System according to claim 4 is characterized in that: the described graticule that contains crosshair is single graticule or combination graticule; The described graticule that contains crosshair is combination during graticule, described combination graticule comprise the graticule that contains crosshair and with the sheet glass of the equal size of graticule; Described graticule and the sheet glass that contains crosshair fits together.
6. according to claim 2 or 3 or 4 or 5 described realization off-axis non-spherical reflector optical axis Precise Position Systems, it is characterized in that: described radius-of-curvature centralized positioning frock and summit centralized positioning frock also comprise the base that is arranged between High Accuracy Flat and the rotating shaft; Described base stretches in the endoporus of High Accuracy Flat and with High Accuracy Flat and is fixed together; Described rotating shaft is arranged in the base and carries out the gap less than the rotation of 0.01mm in base.
7. realization off-axis non-spherical reflector optical axis Precise Position System according to claim 6, it is characterized in that: described radius-of-curvature centralized positioning frock and summit centralized positioning frock also comprise the graduation sheet frame; Described graduation sheet frame vertically is arranged on the horizontal segment of rotating shaft; The described graticule that contains crosshair is embedded in the graduation sheet frame.
8. realization off-axis non-spherical reflector optical axis Precise Position System according to claim 7, it is characterized in that: described radius-of-curvature centralized positioning frock and summit centralized positioning frock also comprise the web joint that is horizontally set in the rotating shaft; Described graduation sheet frame is arranged on the web joint.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201220615173.0U CN202916479U (en) | 2012-11-20 | 2012-11-20 | System for realizing accurate positioning of optical axis of off-axis non-spherical reflector |
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| CN201220615173.0U CN202916479U (en) | 2012-11-20 | 2012-11-20 | System for realizing accurate positioning of optical axis of off-axis non-spherical reflector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937738A (en) * | 2012-11-20 | 2013-02-20 | 中国科学院西安光学精密机械研究所 | System and method for achieving accurate positioning of off-axis aspheric surface reflector |
| 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 |
| CN106033147A (en) * | 2015-03-12 | 2016-10-19 | 哈尔滨新光光电科技有限公司 | Center alignment system for optical target simulator and spherical radome |
| CN106353870A (en) * | 2016-10-31 | 2017-01-25 | 中国航空工业集团公司洛阳电光设备研究所 | Method for adjustment of optical axis before and after reflector reflex at any angle |
-
2012
- 2012-11-20 CN CN201220615173.0U patent/CN202916479U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937738A (en) * | 2012-11-20 | 2013-02-20 | 中国科学院西安光学精密机械研究所 | System and method for achieving accurate positioning of off-axis aspheric surface reflector |
| CN102937738B (en) * | 2012-11-20 | 2014-10-15 | 中国科学院西安光学精密机械研究所 | System and method for achieving accurate positioning of off-axis aspheric surface reflector |
| CN106033147A (en) * | 2015-03-12 | 2016-10-19 | 哈尔滨新光光电科技有限公司 | Center alignment system for optical target simulator and spherical radome |
| CN106033147B (en) * | 2015-03-12 | 2020-09-29 | 哈尔滨新光光电科技股份有限公司 | Optical target simulator and spherical fairing center alignment system |
| 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 |
| CN105068259B (en) * | 2015-08-13 | 2017-08-25 | 中科院南京天文仪器有限公司 | Accurate method of adjustment for optics normal angle in two-dimensional scan device |
| CN106353870A (en) * | 2016-10-31 | 2017-01-25 | 中国航空工业集团公司洛阳电光设备研究所 | Method for adjustment of optical axis before and after reflector reflex at any angle |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20151120 |
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