CN104406775A - Spectroscopless measuring optical system - Google Patents
Spectroscopless measuring optical system Download PDFInfo
- Publication number
- CN104406775A CN104406775A CN201410737215.1A CN201410737215A CN104406775A CN 104406775 A CN104406775 A CN 104406775A CN 201410737215 A CN201410737215 A CN 201410737215A CN 104406775 A CN104406775 A CN 104406775A
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- China
- Prior art keywords
- graticule
- optical system
- lens group
- spectroscope
- visible
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- 230000003287 optical effect Effects 0.000 title claims abstract description 32
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 9
- 230000011514 reflex Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000002310 reflectometry Methods 0.000 abstract 1
- 238000002834 transmittance Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention provides a spectroscopless measuring optical system which comprises a light source, a condenser, a reticle with a reflecting surface, a focusing lens group and a reflector. The system does not have a spectroscope of a common measuring optical system, can completely reflect light reflected from a measuring light path to a receiving system, the light energy loss only depends on the transmittance of a lens group and the reflectivity of a measured piece, and the energy loss is obviously reduced; in addition, the biggest benefit is that when the optical system is used in an infrared light path, the system can be adjusted by using visible light when being adjusted due to the fact that no spectroscope is arranged in the system, and great convenience is brought to assembly.
Description
Technical field
The present invention relates to the technical field of optical system centering device and adjustment thereof, be specifically related to a kind of without spectroscope measurement optical system.
Background technology
For high-precision optical system, errors of centration can make the actual optical axis off-design optical axis of optical device, destroys the aberration correction state of optical design, thus has a strong impact on resolving power, the imaging performance such as distortion and contrast of optical system.
Measuring optical system without spectroscope is core light path in optical system centering device, is used to measure and the errors of centration of calibrating optical device.
If adopt beam splitter optical system, light path form is as Fig. 1, and the light that light source 1 sends is focused at through condenser 2 and is coated with on the graticule 3 of semi-transparent semi-reflecting film, arrives after measured lens group 6 be reflected back toward graticule 3 through focusing lens group 4, in final arrival recording geometry 5.There are two large major defects in which: one is due to semi-transparent semi-reflecting spectroscopical existence, have lost luminous energy greatly, the luminous energy especially after measured lens, makes observation graticule picture become very difficult; Two is which is difficult to be applicable in non-visible light path.
Summary of the invention
The technical problem to be solved in the present invention is: the optical system measuring light path providing a kind of practicality.
The object of the present invention is achieved like this: a kind of without spectroscope measurement optical system, comprises light source, condenser, graticule, focusing lens group and catoptron with reflecting surface; Light source illuminates graticule through condenser, and graticule picture after focusing lens group arrival measured lens is reflected, then through focusing lens group, reflexes to catoptron through graticule, after catoptron reflection in final arrival recording geometry.
Further, wherein with the non-visible light graticule that the graticule of reflecting surface is with reflectance coating, now this system is applicable in non-visible light path, or is the visible ray graticule with reflectance coating with the graticule of reflecting surface, is now applicable in Visible optical trains.
Further, described graticule lower surface is coated with reflectance coating, is bright crosshair in Visible optical trains; It is logical light aperture in non-visible light path.
Further, described catoptron is right cylinder.
The advantage that the present invention compared with prior art has is:
(1), the energy loss that present invention substantially reduces in light path advance process, therefore bring great convenience to observation;
(2), the present invention fundamentally solves the feasibility implementing light splitting in non-visible light path;
(3), the present invention is not only applicable to visible light optical system, is applicable to non-visible optical system yet.
Accompanying drawing explanation
Fig. 1 be prior art containing spectroscopical measurement optical system schematic diagram;
Fig. 2 is of the present invention without spectroscopical measurement optical system schematic diagram;
In figure, 1 be light source, 2 is condenser, 3 is be spectroscope with the graticule, 31 of reflecting surface, 32 be semi-transparent semi-reflecting film, 301 be non-visible light graticule, 302 be visible ray graticule, 303 be reflectance coating, 4 be focusing lens group, 5 be catoptron, 6 be recording geometry, 7 be measured lens.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 2, of the present invention a kind of without spectroscope measurement optical system, comprise light source 1, condenser 2, graticule 3, focusing lens group 4 and catoptron 5 with reflecting surface.Graticule 3 with reflecting surface is the non-visible light graticule 301 with reflectance coating 303, or is the visible ray graticule 302 with reflectance coating 303.The light 1 that described light source sends converges on graticule 3 through condenser 2, the graticule target be illuminated changes vertical arrival measured lens 7 surface after light path convergence through focusing lens group 4, reflect Hou Yuan road through measured lens 7 and be back to graticule 3 lower surface, graticule 3 the most at last light path reflexes in recording geometry 6, in recording geometry by measuring reticle return picture draw circle amount adjustment is completed to measured lens group.
Non-elaborated part of the present invention belongs to the known technology of those skilled in the art.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, change the above embodiment, modification all will drop in the scope of claims of the present invention.
Claims (4)
1. measure an optical system without spectroscope, it is characterized in that: comprise light source (1), condenser (2), graticule (3), focusing lens group (4) and catoptron (5) with reflecting surface; Light source (1) illuminates graticule (3) through condenser (2), graticule picture is after focusing lens group (4) arrival measured lens (7) is reflected, again through focusing lens group (4), reflex to catoptron (5) through graticule (3), finally arrive in recording geometry (6) after catoptron (5) reflection.
2. according to claim 1 without spectroscope measurement optical system, it is characterized in that: wherein with the non-visible light graticule (301) that the graticule (3) of reflecting surface is with reflectance coating (303), now this system is applicable in non-visible light path, or the graticule (3) with reflecting surface is the visible ray graticule (302) with reflectance coating (303), is now applicable in Visible optical trains.
3. according to claim 1 without spectroscope measurement optical system, it is characterized in that: described graticule (3) lower surface is coated with reflectance coating (303), be bright crosshair in Visible optical trains; It is logical light aperture in non-visible light path.
4. according to claim 1 without spectroscope measurement optical system, it is characterized in that: described catoptron (5) is right cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410737215.1A CN104406775A (en) | 2014-12-04 | 2014-12-04 | Spectroscopless measuring optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410737215.1A CN104406775A (en) | 2014-12-04 | 2014-12-04 | Spectroscopless measuring optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104406775A true CN104406775A (en) | 2015-03-11 |
Family
ID=52644422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410737215.1A Pending CN104406775A (en) | 2014-12-04 | 2014-12-04 | Spectroscopless measuring optical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104406775A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109445122A (en) * | 2018-12-18 | 2019-03-08 | 长沙韶光铬版有限公司 | A kind of reflection-type graticle and preparation method thereof |
| CN110413009A (en) * | 2019-07-24 | 2019-11-05 | 中国工程物理研究院激光聚变研究中心 | A kind of sighting system |
-
2014
- 2014-12-04 CN CN201410737215.1A patent/CN104406775A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 邓仁杰等: "光学组件中心偏的自动测试", 《计量与测试技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109445122A (en) * | 2018-12-18 | 2019-03-08 | 长沙韶光铬版有限公司 | A kind of reflection-type graticle and preparation method thereof |
| CN110413009A (en) * | 2019-07-24 | 2019-11-05 | 中国工程物理研究院激光聚变研究中心 | A kind of sighting system |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |
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| WD01 | Invention patent application deemed withdrawn after publication |