CN2483739Y - Non-refrigeration type infrared target light diaphragm - Google Patents
Non-refrigeration type infrared target light diaphragm Download PDFInfo
- Publication number
- CN2483739Y CN2483739Y CN 01246638 CN01246638U CN2483739Y CN 2483739 Y CN2483739 Y CN 2483739Y CN 01246638 CN01246638 CN 01246638 CN 01246638 U CN01246638 U CN 01246638U CN 2483739 Y CN2483739 Y CN 2483739Y
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- China
- Prior art keywords
- infrared
- target light
- substrate
- refrigeration type
- light
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- Expired - Fee Related
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
Discloses is a non-refrigeration type infrared target diaphragm, comprising a substrate with a light through hole arranged in the center thereof; a reflective film layer is plated on one surface of the substrate. The reflective film layer consists of a nickel base layer, an aluminum reflective layer and a silicon oxide layer. The features of the utility model is shielding thermal based on the principle of optical radiation, which can reach 98 percent of the infrared reflective ratio in the wave band range from 2 to 13 micron. Therefore, the target diaphragm can not be heated and not need to be refrigerated when the infrared light source radiates the target diaphragm, which also has the advantages of simple structure and convenient to using.
Description
The utility model relates to optical element, is specifically related to a kind of infrared target light diaphragm of non-refrigeration type.
In the Performance Detection of infrared optical system, simulated target light hurdle is under the irradiation of infrared light supply, its part that is in the light is heated, produce secondary radiation, reduced the contrast of infrared analog object, the performance measurement of infrared system is produced the transport function measurement of very big influence, particularly infrared optical system.In order to eliminate the Performance Detection influence of target light hurdle secondary radiation to infrared optical system, traditional method is that the target light hurdle is carried out air-cooled, water-cooled or semiconductor refrigerating, and these cooling means are complex structure not only, consumes energy, and thermograde is arranged, still can influence measurement result.
For this reason, the purpose of this utility model provides a kind of shielding that can produce the infrared light supply radiation of the part that is in the light on target light hurdle, and infrared target light diaphragm simple in structure, practical is to improve the contrast of infrared analog object.
The technical scheme of utility model is as follows:
The target light hurdle is by substrate, has light hole in the middle of the substrate, and a surface of substrate is coated with reflective coating and forms.Said baseplate material is a LY12 aluminium; The shape of said light hole can be decided as required, as circular hole, slit or grizzly bar; Said reflective coating is made up of Ni-based layer, aluminium reflection horizon and silicon monoxide protective film, and this rete reaches 98% to the infrared radiation reflectivity of 2-13 micron waveband scope.
Description of drawings of the present utility model is as follows:
Fig. 1 is a fundamental diagram of the present utility model;
Fig. 2 is the cross-sectional view of present embodiment 1;
Fig. 3 is the floor map of present embodiment 1;
Fig. 4 is the floor map of present embodiment 2.
Below in conjunction with accompanying drawing principle of work of the present utility model is explained: see Fig. 1, when infrared light source 6 directives are coated with the target light hurdle of reflection face, because the effect of reflectance coating, can reflect away the infrared radiation of non-logical light part, avoided the target light hurdle self to be heated the generation secondary radiation, make the target light hurdle be in the temperature that is equivalent to environment, form bigger temperature difference with target (logical light part), when being used for the infrared optical system performance test, can avoid causing that because of target contrast is low test result is incorrect.
The inventor provides following two embodiment:
If the shape of target hole is not too complicated, also can make of the technology of optical reproduction, technology is simple relatively, and cost is also low.
The utility model has following beneficial effect:
1. the utility model adopts the optical radiation principle to carry out heat shielding, has avoided target light hurdle self to be added Heat.
2. adopt the optical radiation principle to carry out heat shielding, need not infrared light hurdle refrigeration, energy efficient.
3. the utility model only depends on reflectance coating just to reach the high-contrast temperature difference, and is simple for structure, easy to use.
Claims (2)
1. the infrared target light diaphragm of a non-refrigeration type, it is characterized in that: the target light hurdle is by substrate (1), has light hole (2) in the middle of the substrate, a surface of substrate is equipped with reflective coating (3) and forms; Said baseplate material is a LY12 aluminium; The shape of said light hole can be decided as required, as circular hole, slit or grizzly bar.
2. according to the infrared target light diaphragm of claim 1. non-refrigeration type, it is characterized in that: said reflective coating (3) is made up of Ni-based layer (301), aluminium reflection horizon (302) and silicon monoxide protective film (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01246638 CN2483739Y (en) | 2001-07-20 | 2001-07-20 | Non-refrigeration type infrared target light diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01246638 CN2483739Y (en) | 2001-07-20 | 2001-07-20 | Non-refrigeration type infrared target light diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2483739Y true CN2483739Y (en) | 2002-03-27 |
Family
ID=33657620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01246638 Expired - Fee Related CN2483739Y (en) | 2001-07-20 | 2001-07-20 | Non-refrigeration type infrared target light diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2483739Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159162A (en) * | 2011-12-16 | 2013-06-19 | 福州高意光学有限公司 | Method of producing microporous diaphragm |
| CN107144900A (en) * | 2017-06-23 | 2017-09-08 | 中国科学院长春光学精密机械与物理研究所 | A kind of diaphragm and the optical instrument with the diaphragm |
-
2001
- 2001-07-20 CN CN 01246638 patent/CN2483739Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159162A (en) * | 2011-12-16 | 2013-06-19 | 福州高意光学有限公司 | Method of producing microporous diaphragm |
| CN103159162B (en) * | 2011-12-16 | 2015-08-05 | 福州高意光学有限公司 | A kind of method making micropore light hurdle |
| CN107144900A (en) * | 2017-06-23 | 2017-09-08 | 中国科学院长春光学精密机械与物理研究所 | A kind of diaphragm and the optical instrument with the diaphragm |
| CN107144900B (en) * | 2017-06-23 | 2019-10-29 | 中国科学院长春光学精密机械与物理研究所 | A kind of diaphragm and the optical instrument with the diaphragm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |