CN103323952A - Optical integration square cavity - Google Patents
Optical integration square cavity Download PDFInfo
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- CN103323952A CN103323952A CN2013102939005A CN201310293900A CN103323952A CN 103323952 A CN103323952 A CN 103323952A CN 2013102939005 A CN2013102939005 A CN 2013102939005A CN 201310293900 A CN201310293900 A CN 201310293900A CN 103323952 A CN103323952 A CN 103323952A
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Abstract
The invention discloses an optical integration square cavity, and belongs to the field of optical elements, aiming to solve the problems that an existing device for generating radial polarized beam and angular polarized beam is complicated in structure and is high in cost. The optical integration square cavity provided by the invention comprises an upper square cavity and a lower square cavity, wherein the edge of the upper square cavity and the edge of the lower square cavity are both uniformly provided with a plurality of screw holes in corresponding positions; the upper square cavity and the lower square cavity are buckled into a square cavity; the side wall of the upper square cavity is provided with an air intake hole; the other side wall of the upper square cavity is provided with a light inlet; the side wall of the lower square cavity is provided with an air exhaust hole; the bottom of the lower square cavity is provided with a light outlet; the side wall of the air intake hole and the side wall of the air exhaust hole are opposite; the air intake hole and the air exhaust hole are both matched and assembled with one screw plug; the inner side wall of the upper square cavity, the inner side wall of the lower square cavity and the bottom of the screw plug are all provided with diffuse reflection coatings.
Description
Technical field
The present invention relates to chamber, optical integration side, belong to the optical element field.
Background technology
In the fields such as Sensitive Detection technology of photometric measurement, material reflection and transmissivity measurement and gas concentration, for reaching uniform light field and increase the purpose of the effective light path of gas absorption in the finite space, the optical element that adopts is integrating sphere usually.Traditional integrating sphere is hollow sphere, at first adopts metal to make the spherical shell mould usually, has the high diffuse reflection coating of lambert's characteristic then in the spraying of spherical shell inside surface, and the spherical shell outside surface is made into the succinct practical and attractive spheroid of external form through Precision Machining.For reaching different application purposes, have the light hole in different apertures at the integration spherical shell, the integrating sphere of some producers directly penetrates from light-emitting window for avoiding incident light, has also designed the baffle plate that scribbles identical diffuse-reflective material at the integrating sphere inside surface.To improving the particular design demand of optical measurement precision, make that the manufacture craft of spherical cavity is complicated just because of above, the cost height, and spherical external form is not suitable for the requirement of some instrumentation.
Summary of the invention
The present invention seeks to complicated for the technology that solves existing optical integration ball, cost is high, and spherical external form is not suitable for the problem of the requirement of some instrumentation, and chamber, a kind of optical integration side is provided.
Chamber, optical integration side of the present invention, it comprises chamber, top and chamber, below, and the edge in chamber, top evenly arranges the corresponding screw in a plurality of positions with edge, chamber, below, and the chamber, top is fastened on into square chamber with the chamber, below;
The sidewall in chamber, top is provided with air admission hole, and another sidewall in chamber, top is provided with light inlet;
The sidewall in chamber, below is provided with vent port, and the bottom in chamber, below is provided with light-emitting window;
Air admission hole place sidewall is relative with vent port place sidewall locations;
Air admission hole and vent port all cooperate assembling with a screw plug;
Madial wall, the madial wall in chamber, below and the bottom of screw plug in chamber, top are provided with the diffuse reflection coating.
Advantage of the present invention: invent that not only manufacture craft is simple, low cost, and also can reach the optical property suitable with integrating sphere, cubical profile are convenient in instrument and equipment fixing and be easy to carry.Specifically have following several advantage:
1, with the organic glass is material, not only easy to process the but also corrosion-resistant sprayed coating of being convenient to of low price;
2, adopt elder generation to spray the production order of afterwards assembling, make that high irreflexive spraying is convenient, coating thickness is even;
3, integration side's cavity configuration is simple, and processing technology is uncomplicated, and is convenient in instrument and equipment fixing;
4, the experiment that utilizes this chamber, integration side to measure oxygen concentration in the air shows that the light field in the chamber, integration side evenly distributes, and the optical property suitable with integrating sphere arranged.
Description of drawings
Fig. 1 is the structural representation in chamber, optical integration side of the present invention;
Fig. 2 is the structural representation in the chamber, top in chamber, optical integration side of the present invention;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is that the A of Fig. 2 is to view;
Fig. 5 is the structural representation in the chamber, below in chamber, optical integration side of the present invention;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is that the B of Fig. 5 is to view;
Fig. 8 is the scheme of installation of air intake opening or the supporting screw of exhausr port.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1 to Fig. 8, chamber, the described optical integration side of present embodiment, it comprises chamber, top and chamber, below, and the edge in chamber, top evenly arranges the corresponding screw in a plurality of positions 5 with edge, chamber, below, and the chamber, top is fastened on into square chamber with the chamber, below;
The sidewall in chamber, top is provided with air admission hole 1, and another sidewall in chamber, top is provided with light inlet 3;
The sidewall in chamber, below is provided with vent port 2, and the bottom in chamber, below is provided with light-emitting window 4;
Madial wall, the madial wall in chamber, below and the bottom of screw plug 6 in chamber, top are provided with diffuse reflection coating 7.
Light-emitting window 4 is arranged on the center position of bottom, chamber, below.Its benefit is that multiple detector (as photodiode, photomultiplier etc.) all can be mounted on light-emitting window below detection light intensity easily.When making up, two en chambeies the chamber wall opposite planar of air intake opening and exhausr port to be placed, to guarantee that air-flow is unobstructed.Be furnished with wedge-shaped lens at light inlet 3 and light-emitting window 4 places, can make the chamber sealing can effectively avoid the influence of interference fringe to measuring again.
The material that diffuse reflection coating 7 adopts is the Avian-D coating.
The material in chamber, top and chamber, below is iron, aluminium or black organic glass.
The quantity of the screw 5 in chamber, top is 8～12.
The manufacture craft in chamber, the described optical integration side of present embodiment: at first, make the material in chamber, integration side and can select traditional metal (iron or aluminium) for use, can be that material replaces traditional metal to make the shell in chamber, integration side with the black organic glass also, than metal material, organic glass density is little, physical strength big, be convenient to processing, be more suitable for making light chamber, integration side, and organic glass has smooth surface and corrosion resistant characteristics, and this is very useful for the high diffuse reflection coating of spraying, best its high reflection characteristic that reaches.Chamber, integration side is designed to two all-in-one-piece en capable of being combined chambeies, and is provided with light inlet 3, light-emitting window 4, air admission hole 1 and vent port 2 at the chamber wall.The form of two en chamber combinations is convenient to add testing sample in chamber, integration side, for the demand in different application field.Behind the square chamber well cutting black organic glass according to required size, adopt high irreflexive Avian-D coating that it is sprayed.Avian-D coating is the water base ethane coating of the bi-component of Avian Technologies company research and development, be compared to traditional barium sulphate coating and Avian-B coating, its the most significant advantage is to have water-proof function, unusual durable, clean easily, reflectivity and barium sulphate at visible light wave range are similar, can reach more than 98%.After evenly spraying is coated as the one side of inner cavity surface with the organic glass part, with chamber, the synthetic integration side of cementing agent assembled group.But as the optical element of homogeneous radiation light field, chamber, integration side and integrating sphere are similar, and the percentage of open area in its average reflection number of times and the chamber is inversely proportional to, and therefore also need to replenish full-filling with coating at the place, slit that the organic glass part connects again after the assembling in chamber, the side of finishing; In addition, air admission hole 1, vent port 2 all are furnished with the screw plug 6 of respective aperture, screw plug 6 bottoms are the inside in chamber and chamber, below up, screw plug 6 bottoms scribble Avian-D coating, at air admission hole 1, screw plug 6 should be screwed in when vent port 2 does not use, with the perforate ratio of inside, chamber, further minimizing side, thereby improve the average reflection number of times of light in the chamber.When carrying out gasmetry, can go out the wedge shape fused silica glass sealing of light inlet place, adopting the benefit of wedge-shaped lens rather than common planar eyeglass is effectively to avoid the planar lens interference fringe to the influence of optical measurement.
When gasmetry is carried out in the user chamber, measure the concentration of certain composition in the air as need, then air admission hole 1 need not to be connected tracheae with vent port 2, reduce the perforate ratio in the chamber to reach best order of reflection for making, bottom joining, other scribbles the screw plug 6 with the identical high diffuse reflection coating of inwall, as shown in Figure 8, it can be screwed in air admission hole 1 and air admission hole 2, become one with cavity wall.The gas that feeds variable concentrations as need the other side chamber is measured, then air admission hole 1 and vent port 2 are connected the tracheae ventilation respectively and get final product, note for guaranteeing the sealing of whole cavity, need to be coated with the sealing of vacuum mud at the screw place that the slit that two cavitys connect is located and a plurality of screw 5 screws in, before ventilation, should vacuumize the inspection impermeability to chamber, integration side earlier.
Claims (5)
1. chamber, optical integration side is characterized in that, it comprises chamber, top and chamber, below, and the edge in chamber, top evenly arranges the corresponding screws in a plurality of positions (5) with edge, chamber, below, and the chamber, top is fastened on into square chamber with the chamber, below;
The sidewall in chamber, top is provided with air admission hole (1), and another sidewall in chamber, top is provided with light inlet (3);
The sidewall in chamber, below is provided with vent port (2), and the bottom in chamber, below is provided with light-emitting window (4);
Air admission hole (1) place sidewall is relative with vent port (2) place sidewall locations;
Air admission hole (1) and vent port (2) all cooperate assembling with a screw plug (6);
Madial wall, the madial wall in chamber, below and the bottom of screw plug (6) in chamber, top are provided with diffuse reflection coating (7).
2. according to chamber, the described optical integration side of claim 1, it is characterized in that light-emitting window (4) is arranged on the center position of bottom, chamber, below.
3. according to chamber, the described optical integration side of claim 1, it is characterized in that the material that diffuse reflection coating (7) adopts is the Avian-D coating.
4. according to chamber, the described optical integration side of claim 1, it is characterized in that the material in chamber, top and chamber, below is iron, aluminium or black organic glass.
5. according to chamber, the described optical integration side of claim 1, it is characterized in that the quantity of the screw in chamber, top (5) is 8～12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102939005A CN103323952A (en) | 2013-07-11 | 2013-07-11 | Optical integration square cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102939005A CN103323952A (en) | 2013-07-11 | 2013-07-11 | Optical integration square cavity |
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| CN103323952A true CN103323952A (en) | 2013-09-25 |
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| CN2013102939005A Pending CN103323952A (en) | 2013-07-11 | 2013-07-11 | Optical integration square cavity |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192721A (en) * | 2017-04-26 | 2017-09-22 | 中国科学院西安光学精密机械研究所 | Illumination light source for detecting surface defects of plate glass and surface defect detection device |
| CN107591095A (en) * | 2017-09-25 | 2018-01-16 | 上海九山电子科技有限公司 | A kind of transparency LED display screen |
| CN115093846A (en) * | 2022-08-09 | 2022-09-23 | 杭州汇蓝气体设备有限公司 | Material for detecting concentration of carbon dioxide and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202442786U (en) * | 2012-02-08 | 2012-09-19 | 南京信息工程大学 | Pumpable vacuum integrating sphere |
-
2013
- 2013-07-11 CN CN2013102939005A patent/CN103323952A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202442786U (en) * | 2012-02-08 | 2012-09-19 | 南京信息工程大学 | Pumpable vacuum integrating sphere |
Non-Patent Citations (2)
| Title |
|---|
| P. ELTERMAN: "Integrating Cavity Spectroscopy", 《APPLIED OPTICS》 * |
| PER NOSTELL, ARNE ROOS, AND DANIEL RÖNNOW: "Single-beam integrating sphere spectrophotometer for reflectance and transmittance measurements versus angle of incidence in the solar wavelength range on diffuse and specular samples", 《REVIEW OF SCIENTIFIC INSTRUMENTS》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192721A (en) * | 2017-04-26 | 2017-09-22 | 中国科学院西安光学精密机械研究所 | Illumination light source for detecting surface defects of plate glass and surface defect detection device |
| CN107192721B (en) * | 2017-04-26 | 2019-09-20 | 中国科学院西安光学精密机械研究所 | Illumination light source for detecting surface defects of plate glass and surface defect detection device |
| CN107591095A (en) * | 2017-09-25 | 2018-01-16 | 上海九山电子科技有限公司 | A kind of transparency LED display screen |
| CN115093846A (en) * | 2022-08-09 | 2022-09-23 | 杭州汇蓝气体设备有限公司 | Material for detecting concentration of carbon dioxide and preparation method thereof |
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Application publication date: 20130925 |