CN1629673A - Novel optical system through-axis centering method - Google Patents
Novel optical system through-axis centering method Download PDFInfo
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- CN1629673A CN1629673A CN200310121373.6A CN200310121373A CN1629673A CN 1629673 A CN1629673 A CN 1629673A CN 200310121373 A CN200310121373 A CN 200310121373A CN 1629673 A CN1629673 A CN 1629673A
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- pentaprism
- mirror
- measuring instrument
- internal focusing
- axle
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- 230000003287 optical effect Effects 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 1
- 238000005269 aluminizing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
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Abstract
A novel optical system through-axis centering method is provided, before working, the installation and adjustment of a primary mirror must be completed, namely the whole installation and adjustment process is based on the installed and adjusted primary mirror, and the method comprises the following steps: (1) firstly, an internal focusing centering instrument is used, and an image of an incidence surface a is adjusted to ensure that the incidence surface a of a pentaprism is vertical to an optical axis of the internal focusing centering instrument; (2) secondly, simultaneously adjusting the inner focusing centering instrument and the pentaprism to enable an image returned by the incidence surface a of the pentaprism and an image returned by the surface of the primary mirror to be on one axis, namely on a reference axis determined by the primary mirror; (3) the pentaprism is rotated by 180 degrees, and the image reflected by the secondary mirror and the image returned by the incidence surface a of the pentaprism penetrate through the pentaprism, so that the centering work of the primary mirror and the secondary mirror is finished. The device not only can meet the shaft-through centering requirement of the current large-caliber optical instrument, but also can meet the higher shaft-through centering requirement of the future large-caliber optical instrument.
Description
Affiliated technical field
The present invention relates to a kind of novel optical system through axle central device, what can be used for general optical system and heavy-caliber optical system wears axle to heart work, the invention belongs to optics, mechanical integrated technical field.
Background technology
When large photoelectric equipment assembling is in the past adjusted, wear axle to heart work for the primary and secondary mirror, the general light that sends with the little light pipe of employing is through the primary and secondary mirror reflection, after entering micrometer eyepiece, rotate one of them circle amount of drawing that is produced of primary and secondary mirror then and wear axle the heart, this technology is as shown in Figure 1: the little light pipe 1 of instrument, secondary mirror 2, micrometer eyepiece 3, primary mirror 4 as Fig. 1, is characterized in: the light that the little light pipe 1 of instrument sends is through primary mirror 4, secondary mirror 2, arrive in the micrometer eyepiece 3, little light pipe of throw 1 and micrometer eyepiece 3 then, the size of drawing the circle amount of observing the picture in the micrometer eyepiece 3 comes the primary and secondary mirror is worn axle to heart work by a size of drawing the circle amount of adjusting the picture in the micrometer eyepiece 3, when the circle amount of drawing of picture in the micrometer eyepiece 3 is zero substantially, illustrate that primary mirror 4 and secondary mirror 2 are finished substantially to wear spool to heart work.Here need to prove: this moment, the axle of wearing of primary and secondary mirror was that turning axle with primary mirror is a benchmark to the heart, then secondary mirror was adjusted, and promptly primary mirror was debug the method adjustment by other and finished this moment.
It is to carry out rough observation by human eye to the standard of debuging heart work check that primary and secondary mirror is in the past debug heart technology, wear axle the precision of the heart is often depended on operator's experience accumulation, and top method can only be to be suitable under the situation of monolithic catoptron to secondary mirror, if secondary mirror is to be made of several optical elements, this kind method is just inapplicable; Along with the continuous development of optical technology, optical instrument is proposed more and more higher technical requirement, wherein concerning large-aperture optical instrument, it is more and more higher to the accuracy requirement of the heart that the primary and secondary mirror is worn axle, but prior art can not satisfy the relevant axle of wearing the heart adjusted requirement.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome deficiency of the prior art, pass through improvements over the prior art, a kind of center alignment method of wearing of novel heavy-caliber optical system is provided, what it can satisfy not only that present large-aperture optical instrument proposes wears axle to heart requirement, and can solve following large-aperture optical instrument higher wear axle to heart requirement.
Technical solution of the present invention is: a kind of novel optical system is worn a center alignment method, and its characteristics are: the present invention is before work, and debuging of primary mirror must be finished, and also is that the whole process of debuging is to be benchmark to debug the primary mirror that finishes, and it comprises the following steps:
(1) at first uses internal focusing central deviation measuring instrument, make that the plane of incidence a of pentaprism is vertical with the optical axis of internal focusing central deviation measuring instrument;
(2) secondly, adjust internal focusing central deviation measuring instrument and pentaprism simultaneously, make picture that the picture that returned by pentaprism plane of incidence a and primary mirror surface return on an axle, also promptly on the reference axis that primary mirror is determined;
(3) with pentaprism Rotate 180 °, the picture of secondary mirror reflected back and the picture that pentaprism plane of incidence a returns are worn, the work to the heart of primary and secondary mirror is finished like this.
In addition, if secondary mirror is to be made of several optical elements, utilization also can look like in the secondary mirror mirror group each to find and put on as a same reason; Last pentaprism adds that 22.5 ° of auxiliary prisms constitute the through type optical element, can wear the centre of sphere of the optical element of vertical shaft series like this, finish the axle of wearing to vertical shaft series mirror group, owing to certainly exist a catoptron in the position of pentaprism, so after in the end pentaprism being removed, can adjust catoptron by internal focusing central deviation measuring instrument equally, at this moment, the optical system through axle that has vertical shaft series mirror group finishes to the heart.
Principle of the present invention is: when pentaprism produces 90 ° deflection, its error has only several second of arcs at most, but its most important characteristic is the planar axes rotation of pentaprism in Fig. 2 the time can accurately keep same deflection precision, and in right-angle plane, the pentaprism rotation has the characteristics of plane mirror; If being housed, 22.5 ° of wedge prisms can constitute through type on pentaprism, 50% the reflectivity of aluminizing on the half-reflection and half-transmission face c of Fig. 2.
45 ° of plane mirrors that described pentaprism has with add the wedge prism and constitute the characteristics of through type optical element, internal focusing central deviation measuring instrument by to catoptron and the axle be the observation of the optical image of mirror group, can finish to the primary and secondary mirror and the axle be the mirror group wear the axle to heart work.
The present invention is before work, and debuging of primary mirror must be finished, and also is that the whole process of debuging is to be benchmark to debug the primary mirror that finishes, and at first uses internal focusing central deviation measuring instrument, makes that the plane of incidence a of pentaprism is vertical with the optical axis of internal focusing central deviation measuring instrument; Secondly, adjust internal focusing central deviation measuring instrument and pentaprism simultaneously, make picture that the picture that returned by pentaprism plane of incidence a and primary mirror surface return on an axle, also promptly on the reference axis that primary mirror is determined; Pentaprism Rotate 180 ° then, the picture of secondary mirror reflected back and the picture that pentaprism plane of incidence a returns are worn, and the work to the heart of primary and secondary mirror is finished like this, if secondary mirror is to be made of several optical elements, utilization also can look like in the secondary mirror mirror group each to find and put on as a same reason; Last pentaprism adds that 22.5 ° of auxiliary prisms constitute the through type optical element, can wear the centre of sphere of the optical element of vertical shaft series like this, finish the axle of wearing to vertical shaft series mirror group, owing to certainly exist a catoptron in the position of pentaprism, so after in the end pentaprism being removed, can adjust catoptron by internal focusing central deviation measuring instrument equally, at this moment, the optical system through axle that has vertical shaft series mirror group finishes to the heart.
The present invention compared with prior art have good effect be: to heavy-caliber optical system wear the axle to heart work, existing integration techno logy almost can not satisfy the more and more higher axle of wearing to heart requirement, and after use the method, can effectively solve the requirement of wearing between the primary and secondary mirror, and be very helpful for debuging all of vertical shaft series mirror group and catoptron.The present invention not only is applicable to large-scale optical device, also is applicable to the optical alignment and the adjustment of general optical device.
Description of drawings
Fig. 1 is the synoptic diagram of prior art;
Fig. 2 is the structural representation of pentaprism and 22.5 ° of auxiliary prisms;
Fig. 3 is the structural representation of an embodiment of the present invention.
Embodiment
Shown in Fig. 2,3, the present invention is by being internal focusing central deviation measuring instrument 1, secondary mirror 2, pentaprism 3, vertical shaft series mirror group 4, primary mirror 5 compositions, the internal focusing central deviation measuring instrument that internal focusing central deviation measuring instrument 1 adopts Photoelectric Technology Inst., Chinese Academy of Sciences to produce; Pentaprism 3 not only requires to have higher deflection precision, and needs one 22.5 ° auxiliary prism.
The course of work of the embodiment of the invention: the reference axis of present embodiment is an optical axis of debuging the primary mirror 5 that finishes, for finish optical device to heart adjustment, at first use internal focusing central deviation measuring instrument 1, the adjustment of the picture that returns by the plane of incidence a to pentaprism 3 makes that the plane of incidence a of pentaprism 3 is vertical with the optical axis of internal focusing central deviation measuring instrument 1; Because to debug primary mirror 5 optical axises that finish are reference axis,, can make the optical axis of internal focusing central deviation measuring instrument 1 vertical with reference axis so the picture that the picture that returns by pentaprism 3 plane of incidence a and primary mirror surface are returned is adjusted pentaprism 3 and internal focusing central deviation measuring instrument 1 simultaneously; Pentaprism 3 Rotate 180s °, picture that returns by secondary mirror 2 surfaces and the picture that the plane of incidence a of pentaprism 3 returns are adjusted secondary mirror 2, and the optical axis of secondary mirror 2 and reference axis are worn; Pentaprism 3 adds 22.5 ° auxiliary prism then, and pentaprism 3 has just constituted through type like this, as a same reason, the image of spherical center on the vertical shaft series mirror group 4 is also worn; At last pentaprism 3 is removed, changed catoptron, can adjust catoptron by internal focusing central deviation measuring instrument 1, work finishes the axle of wearing of this optical system to the heart like this.
In addition, if secondary mirror 2 is to be made of several optical elements, compare with the secondary mirror that has only a reflecting surface, just need find a plurality of images of spherical center and wear by internal focusing central deviation measuring instrument 1, at first adjust the image of spherical center of each optical element by internal focusing central deviation measuring instrument, the position of adjusting each optical element then is through image of spherical center on the axle as much as possible, can look like in the secondary mirror mirror group each to find and put on like this.
Add that at pentaprism 22.5 ° of auxiliary prisms constitute the through type optical element, make light beam can pass through half-reflection and half-transmission face c and exit facet d, can find the image of spherical center of vertical shaft series 4 each optical elements like this by internal focusing central deviation measuring instrument 1, as much as possible these images of spherical center are through on the axle, can wear the centre of sphere of the optical element of vertical shaft series 4 like this, finish the axle of wearing to vertical shaft series mirror group 4, owing to certainly exist a catoptron in the position of pentaprism 3, so after in the end pentaprism 3 being removed, can adjust by 1 pair of catoptron of internal focusing central deviation measuring instrument equally, at this moment, the optical system through axle that has a vertical shaft series mirror group 4 finishes to the heart.
Claims (3)
1, a kind of novel optical system is worn a center alignment method, it is characterized in that comprising the following steps:
(1) at first uses internal focusing central deviation measuring instrument, make that the plane of incidence a of pentaprism is vertical with the optical axis of internal focusing central deviation measuring instrument;
(2) secondly, adjust internal focusing central deviation measuring instrument and pentaprism simultaneously, make picture that the picture that returned by pentaprism plane of incidence a and primary mirror surface return on an axle, also promptly on the reference axis that primary mirror is determined;
(3) with pentaprism Rotate 180 °, the picture of secondary mirror reflected back and the picture that pentaprism plane of incidence a returns are worn, the work to the heart of primary and secondary mirror is finished like this.
2, novel optical system according to claim 1 is worn a center alignment method, it is characterized in that: when described secondary mirror is to be made of several optical elements, adjust the image of spherical center of each optical element by internal focusing central deviation measuring instrument, as much as possible image of spherical center is through on the axle, so promptly each looks like to find and put in the secondary mirror mirror group.
3, novel optical system according to claim 1 is worn a center alignment method, it is characterized in that: add that at described pentaprism 22.5 ° of auxiliary prisms constitute the through type optical element, transmitted light beam by half-reflection and half-transmission face c, can on internal focusing central deviation measuring instrument, wear the image of spherical center of the optical element of vertical shaft series, finish the axle of wearing vertical shaft series mirror group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101213736A CN100370296C (en) | 2003-12-16 | 2003-12-16 | Optical system through-axis centering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101213736A CN100370296C (en) | 2003-12-16 | 2003-12-16 | Optical system through-axis centering method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1629673A true CN1629673A (en) | 2005-06-22 |
| CN100370296C CN100370296C (en) | 2008-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101213736A Expired - Fee Related CN100370296C (en) | 2003-12-16 | 2003-12-16 | Optical system through-axis centering method |
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| CN (1) | CN100370296C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608727A (en) * | 2012-03-23 | 2012-07-25 | 中国科学院西安光学精密机械研究所 | Centering tool and method for determining reference of aspheric reflector by using same |
| CN103412391A (en) * | 2013-08-14 | 2013-11-27 | 中国科学院光电技术研究所 | Method for realizing through-axis centering of optical system based on laser tracker |
| CN110531531A (en) * | 2019-09-27 | 2019-12-03 | 昆明北方红外技术股份有限公司 | The Method of Adjustment of Cassegrain optical system primary and secondary reflecting mirror |
| CN110764271A (en) * | 2019-10-16 | 2020-02-07 | 中国航空工业集团公司洛阳电光设备研究所 | Method for adjusting position precision among lenses in conjugate optical system |
| CN112505664A (en) * | 2020-11-27 | 2021-03-16 | 北京航天计量测试技术研究所 | Laser radar light path adjusting method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55129318A (en) * | 1979-03-28 | 1980-10-07 | Mamiya Koki Kk | Automatic focus control system |
| JPS58158618A (en) * | 1982-03-16 | 1983-09-20 | Canon Inc | Automatic focus adjusting device |
| US4468119A (en) * | 1982-05-24 | 1984-08-28 | Hamar M R | Penta-prism module having laser alignment error detection and correction capability |
| JP3187286B2 (en) * | 1995-07-10 | 2001-07-11 | 旭光学工業株式会社 | How to adjust the optical axis of an optical pickup |
-
2003
- 2003-12-16 CN CNB2003101213736A patent/CN100370296C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608727A (en) * | 2012-03-23 | 2012-07-25 | 中国科学院西安光学精密机械研究所 | Centering tool and method for determining reference of aspheric reflector by using same |
| CN102608727B (en) * | 2012-03-23 | 2014-03-26 | 中国科学院西安光学精密机械研究所 | Centering tool and method for determining reference of aspheric reflector by using same |
| CN103412391A (en) * | 2013-08-14 | 2013-11-27 | 中国科学院光电技术研究所 | Method for realizing through-axis centering of optical system based on laser tracker |
| CN110531531A (en) * | 2019-09-27 | 2019-12-03 | 昆明北方红外技术股份有限公司 | The Method of Adjustment of Cassegrain optical system primary and secondary reflecting mirror |
| CN110764271A (en) * | 2019-10-16 | 2020-02-07 | 中国航空工业集团公司洛阳电光设备研究所 | Method for adjusting position precision among lenses in conjugate optical system |
| CN110764271B (en) * | 2019-10-16 | 2022-08-12 | 中国航空工业集团公司洛阳电光设备研究所 | Method for adjusting position precision among lenses in conjugate optical system |
| CN112505664A (en) * | 2020-11-27 | 2021-03-16 | 北京航天计量测试技术研究所 | Laser radar light path adjusting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100370296C (en) | 2008-02-20 |
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