CN205719921U - A kind of analogue optical system - Google Patents
A kind of analogue optical system Download PDFInfo
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- CN205719921U CN205719921U CN201620416839.8U CN201620416839U CN205719921U CN 205719921 U CN205719921 U CN 205719921U CN 201620416839 U CN201620416839 U CN 201620416839U CN 205719921 U CN205719921 U CN 205719921U
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- plated film
- optical system
- film plane
- reflecting mirror
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Abstract
This utility model relates to a kind of analogue optical system, including laser instrument, collimating lens, expands structure, the plated film plane mirror that is all-trans, reflecting mirror translation structure, positioning unit；Collimating lens, expand structure and be all-trans plated film plane mirror respectively along light transmission direction set gradually；Reflecting mirror translation structure is movably disposed at the plated film plane mirror light reflection direction that is all-trans；Positioning unit is arranged at reflecting mirror translation structure light reflection direction.It is elegant that this utility model effectively overcomes over self light path in simulated light work, improves target practice precision to a great extent.
Description
Technical field
This utility model relates to laser-plasma experiments field, particularly relates to a kind of analogue optical system.
Background technology
In laser-plasma experiments, the introducing of analogue optical system, is to save laser to send out secondary, Jin Erti
The effective way of High Power Femtosecond Laser utilization ratio.
In actual laser target shooting experiment, the Preparatory work of experiment of early stage, focusing and various detection instrument,
If IP, electrospectrograph, flat field spectrograph etc. are all to carry out using simulated light as benchmark, simulated light is passed through
632.8nm full impregnated, the metallic-membrane plating reflector that 800nm is all-trans enters ADAPTIVE OPTICS SYSTEMS, through self adaptation
The cross hair of the outlet of system enters target chamber, through target chamber internal reflector and the focusing of off-axis paraboloidal mirror, utilizes
Visible-light CCD monitoring focal spot position, now writes down the position of focal spot on CCD.Real in actual target practice
In testing, it is only necessary to main laser is adjusted to the position of former 632.8nm simulated light light path, i.e. through cross hair
On the basis of center, focal spot and the simulated light focal spot of main laser overlap over the display, substantially can protect
The precision that card is practiced shooting.At the beginning of the design of 632.8nm simulated light, save target practice to a great extent and send out secondary,
Achieve good effect, but 632.8nm simulated light self also exist the shortcoming and defect that cannot overcome,
It is mainly reflected in following 2 points:
First, laser enters target chamber from ADAPTIVE OPTICS SYSTEMS, and the reflecting mirror within target chamber must be right
632.8nm and 800nm is all-trans, and adds plated film difficulty, improves experimental cost.
Second, best coating technique is impossible to ensure to be all-trans, two wavelength for intensity of practicing shooting
Requirement, reflecting mirror uses 800nm to be all-trans as far as possible, utilizing simulated light to carry out experiment regulation when,
It can be seen that several hot spot on CCD, easily causing simulated light and main laser is not coaxial, impact is main to swash
The focus strength of light.
Utility model content
The purpose of this utility model is to provide a kind of analogue optical system, and 632.8nm of overcoming over simulates
In light work, the light path of self is elegant, improves target practice precision to a great extent.
A kind of analogue optical system of the present utility model includes:
Laser instrument；
Collimating lens, expand structure and the plated film plane mirror that is all-trans, set gradually along light transmission direction；
Reflecting mirror translation structure, be movably disposed at described in be all-trans plated film plane mirror light reflection direction
Place；
Positioning unit, at described reflecting mirror translation structure light reflection direction.
Preferably, described positioning unit is two diaphragms being arranged in order.
Preferably, also include a PSD Position-Sensitive Detector and the 2nd PSD Position-Sensitive Detector,
On the plated film plane mirror being all-trans described in being separately positioned on and reflecting mirror translation structure.
Preferably, expand structure described in and include the first convex lens and the second convex lens, respectively along optical transport side
To setting gradually.
Preferably, described laser instrument is that 808nm optical fiber couples output semiconductor laser.
The utility model has the advantage of, the regulation before experiment is practiced shooting can utilize simulated light to enter
OK, regulate complete after, it is only necessary to be adjusted to main laser optical axis on the line at two diaphragm centers just may be used
To ensure more accurate target practice.In main laser and simulated light every day all coaxially through the basis of two diaphragms
On, the light path drift of every day can carry out light path reset by PSD.This utility model simulation spectrum
System improves target practice precision to a great extent and also saves experimental period simultaneously.
Accompanying drawing explanation
Fig. 1 this utility model structural representation.
Detailed description of the invention
As shown in Figure 1, a kind of analogue optical system of the present utility model includes: laser instrument 1, collimating lens 2,
Expand structure 3, the plated film plane mirror 4 that is all-trans, reflecting mirror translation structure 5, positioning unit 6；Collimating lens
2, expand structure 3 and the plated film plane mirror 4 that is all-trans sets gradually along light transmission direction respectively；Reflecting mirror
Translation structure 5 is movably disposed at the plated film plane mirror 4 light reflection direction that is all-trans；Positioning unit 6
It is arranged at reflecting mirror translation structure 5 light reflection direction.
This utility model also includes that a PSD Position-Sensitive Detector 7 and the 2nd PSD position sensing are visited
Survey device 8 is separately positioned on and is all-trans on plated film plane mirror 4 and reflecting mirror translation structure 5.Expand structure 3 to wrap
Include the first convex lens 31 and the second convex lens 32, set gradually along optical transmission direction respectively.Positioning unit
6 is two diaphragms being arranged in order.In the present embodiment, laser instrument is that the coupling output of 808nm optical fiber is partly led
Body laser.
In the present embodiment, first, single by placing the location of two diaphragm compositions in simulated light direction of advance
Unit 6 positions two benchmark for optical path adjusting, it is therefore an objective to make simulated light successively by the center of two diaphragms；
The laser beam of 808nm optical fiber coupling output semiconductor laser 1 output is diverging light, through collimating lens
2 directional lights being collimated into approximation；Laser beam followed by the combination collimation expanding structure 3 expands
Bundle；Again through being all-trans plated film plane mirror 4 and reflecting mirror translation structure 5 change the transmission direction of laser beam with
Laser beam is made to pass through the center of the positioning unit 6 that two diaphragms form.
High-order harmonics spectrum is an experiment needing high accuracy to practice shooting, if can not float light path
Shift-in row is effective to be resetted, it will have a strong impact on the result of experiment.Utilizing human eye to judge, regulation is complete
Anti-plated film plane mirror 4 and reflecting mirror translation structure 5 can move there occurs angle and the light path light of translation completely
Axle is adjusted to initial condition.But the repetitive operation that such job demand is loaded down with trivial details, the time of cost is longer,
And degree of regulation depends on the judgement of human eye.So the present embodiment is in plated film plane mirror 4 and the reflection of being all-trans
PSD Position-Sensitive Detector 6 and a PSD position sensing it is respectively mounted on mirror translation structure 5
Detector 7, can effectively to being all-trans plated film plane mirror 4 and reflecting mirror translation structure 5 is adjusted,
Effectively solve light path drifting problem, save experimental period.
The foregoing is only preferred embodiment of the present utility model, be not limited to this practicality new
Type, for a person skilled in the art, this utility model can have various modifications and variations.All
Within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all should
Within being included in protection domain of the present utility model.
Claims (5)
1. an analogue optical system, it is characterised in that including:
Laser instrument；
Collimating lens, expand structure and the plated film plane mirror that is all-trans, set gradually along light transmission direction；
Reflecting mirror translation structure, be movably disposed at described in be all-trans plated film plane mirror light reflection direction
Place；
Positioning unit, at described reflecting mirror translation structure light reflection direction.
Analogue optical system the most according to claim 1, it is characterised in that described positioning unit is
Two diaphragms being arranged in order.
Analogue optical system the most according to claim 1 and 2, it is characterised in that also include first
PSD Position-Sensitive Detector and the 2nd PSD Position-Sensitive Detector, be separately positioned on described in be all-trans
On plated film plane mirror and reflecting mirror translation structure.
Analogue optical system the most according to claim 1 and 2, it is characterised in that described in expand knot
Structure includes the first convex lens and the second convex lens, sets gradually along optical transmission direction respectively.
Analogue optical system the most according to claim 1 and 2, it is characterised in that described laser instrument
Output semiconductor laser is coupled for 808nm optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416839.8U CN205719921U (en) | 2016-05-10 | 2016-05-10 | A kind of analogue optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416839.8U CN205719921U (en) | 2016-05-10 | 2016-05-10 | A kind of analogue optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205719921U true CN205719921U (en) | 2016-11-23 |
Family
ID=57304273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620416839.8U Active CN205719921U (en) | 2016-05-10 | 2016-05-10 | A kind of analogue optical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205719921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113205739A (en) * | 2021-04-15 | 2021-08-03 | 中国科学院上海光学精密机械研究所 | Laser and micro-channel target collimation adjusting system and collimation adjusting method |
-
2016
- 2016-05-10 CN CN201620416839.8U patent/CN205719921U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113205739A (en) * | 2021-04-15 | 2021-08-03 | 中国科学院上海光学精密机械研究所 | Laser and micro-channel target collimation adjusting system and collimation adjusting method |
| CN113205739B (en) * | 2021-04-15 | 2023-02-14 | 中国科学院上海光学精密机械研究所 | Laser and micro-channel target collimation adjusting system and collimation adjusting method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |