CN205229658U - Compensation filter structure among multi -sequence laser shade photographic system - Google Patents
Compensation filter structure among multi -sequence laser shade photographic system Download PDFInfo
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- CN205229658U CN205229658U CN201520930308.6U CN201520930308U CN205229658U CN 205229658 U CN205229658 U CN 205229658U CN 201520930308 U CN201520930308 U CN 201520930308U CN 205229658 U CN205229658 U CN 205229658U
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Abstract
The utility model belongs to hypervelocity transient state formation of image field relates to a compensation filter structure among multi -sequence laser shade photographic system, adjust a section of thick bamboo, optical filtering stationary magazine creel, optical filtering, second packing ring, first protection window glass, first clamping ring, banking pin, locking screw, gag lever post, third packing ring, second clamping ring, second clamping ring, fourth packing ring, density graduated filter, second protection window glass and density graduated filter and adjust a section of thick bamboo including main part sleeve, formation of image objective, first packing ring, optical filtering. The utility model discloses place protection window glass in compensation filter front and back end, can prevent that the dust from getting into the optical element surface and weing with dampproofing optical element surface, it is rotatory wantonly that density graduated filter can follow the optical axis, can match with light filter angle regulation fast.
Description
Technical field
The utility model belongs to ultra-high speed transient imaging field, relates to the compensation filtering apparatus structure in a kind of multisequencing laser shadowgraph system.
Background technology
Along with the development of China's Aerospace Technology, weaponry and basic subject, the research relating to the fields such as hypervelocity aerodynamics, hypervelocity impact, explosion and shock, burning and chemical reaction deepens continuously.In these research work, many phenomenons are only microsecond even the ultra-high speed transient change procedure of nanosecond the duration, and needing a kind of photographic system can carry out clear, record by imaging continuously, to grasp the essence of physical phenomenon to this process.This photographic system except amplitude-frequency require reach 1,000 ten thousand width/second (i.e. exposure image shortest time 100ns), can carry out outside imaging sequences to ultra-high speed transient change procedure, also must guarantee that the resolution of every width image is enough high, time shutter is enough short, thus raising imaging definition, reduce the fuzzy distortion that hypervelocity motion causes image.
Domesticly at present only have Xi'an ray machine institute of the Chinese Academy of Sciences, Shenzhen University can production sequence quantity be greater than 8, the exposure image time is greater than the rotary mirror type framing film imaging system of 200 nanoseconds, due to the mode adopting machinery to rotate, the time shutter of every width image is difficult to be less than 100ns.Domestic digital formula imaging sequences system is also immature on research and production, is difficult to the needs meeting through engineering approaches.External sequence quantity is greater than 8, and the time shutter is less than the very high speed digital imaging system technology comparative maturity of 100ns, usually adopt expensive nanosecond electro-optical shutter to realize imaging sequences, but this kind of high-end product is imposed embargo and blockade on new techniques to China.
In order to meet hypervelocity object variations process multi-sequence im-aging, develop multisequencing laser shadowgraph system, this photographic system utilizes multibeam laser light source light beam to carry out light splitting in different spatial and deviation principle, realizes multi-beam and carry out overlapping or be separated with to the independent imaging of same target.Multisequencing laser shadowgraph system mainly comprises light-source system, directional light transmission imaging device, imaging system and data Collection & Processing System.
Due to the autoluminescence of hypervelocity phenomenon often accompanied by intense, these autoluminescences can produce interference to the information of test target, and place narrow band pass filter carry out veiling glare filter time can produce less desirable striped in the optical path, light beam also can be made uneven when placing optical filter in addition, affect image quality.In order to eliminate veiling glare and not affect image quality, compensation filtering apparatus is employed in the imaging system of photographic system, but because compensate filtering apparatus to relate to multiple optical element, and need before each use repeatedly to debug compensation filtering apparatus, often be difficult to fix after debugging puts in place, need again continuous debugging when next time uses.
Utility model content
The technical problems to be solved in the utility model is to provide and compensates filtering apparatus structure, realizes the light path debugging of multisequencing laser shadowgraph imaging system.
In order to solve the problems of the technologies described above, the technical solution of the utility model is as follows:
A compensation filtering apparatus structure in multisequencing laser shadowgraph system, comprises main body sleeve, image-forming objective lens, the first packing ring, optical filtering adjustment barrel, optical filtering stationary magazine creel, optical filtering, the second packing ring, the first protecting window glass, the first pressure ring, banking pin, lock-screw, gag lever post, the 3rd packing ring, the second pressure ring, the second pressure ring, the 4th packing ring, density wedge filter, Second Protection Window mouth glass and density wedge filter adjustment barrel;
The front and back end of main body sleeve places the first protecting window glass and the first protecting window glass respectively, Second Protection Window mouth glass and density wedge filter are placed in density wedge filter adjustment barrel, and optical filtering is placed between the first protecting window glass and image-forming objective lens;
Density wedge filter adjustment barrel is directly enclosed within and compensates on filtering apparatus main body sleeve, and carries out position with banking pin and fix, and optical filtering and the first protecting window glass are placed in optical filtering adjustment barrel, place gag lever post below optical filtering;
Density wedge filter adjustment barrel can rotate arbitrarily along optical axis, and fixes with banking pin, and optical filtering can change arbitrarily the angle with optical axis by rotational lock screw, is fixed after rotation again.
The utility model has following beneficial effect:
1. place protecting window glass in compensation filtering apparatus front and back end, meet transmissivity 98%, and can prevent dust from entering optical element surface and moistureproof optical element surface makes moist.
2. density wedge filter can rotate arbitrarily along optical axis, can mate with optical filter adjusting angle rapidly.
3. optical filtering can regulate arbitrarily perpendicular to optical axis direction 0 ° ~ 30 °, avoids interference fringe appears in the hot spot of imaging surface on the one hand, realizes the decay of different-energy size on the other hand, satisfaction optical element normally photosensitive.
4. form standard component by the design of structure, by the debug time of minimizing two hours in the debugging of multisequencing laser shadowgraph system light path, and stable performance, do not need again debugging separately to compensate filtering apparatus when reusing after first time debugging.
Accompanying drawing explanation
Fig. 1 is the structural drawing compensating filtering apparatus structure.
Fig. 2 is the explosive view compensating filtering apparatus structure.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail:
Compensation filtering apparatus structure in a kind of multisequencing laser shadowgraph system, as depicted in figs. 1 and 2, main body sleeve 1, image-forming objective lens 2, first packing ring 3, optical filtering adjustment barrel 4, optical filtering stationary magazine creel 5, optical filtering 6, second packing ring 301, first protecting window glass 7, first pressure ring 8, banking pin 9, lock-screw 10, gag lever post 11, the 3rd packing ring 302, second pressure ring 801, second pressure ring 802, the 4th packing ring 303, density wedge filter 12, Second Protection Window mouth glass 701 and density wedge filter adjustment barrel 13 is comprised;
The front and back end of main body sleeve 1 places the first protecting window glass 7 and the first protecting window glass 701 respectively, Second Protection Window mouth glass 701 and density wedge filter 12 are placed in density wedge filter adjustment barrel 13, and optical filtering 6 is placed between the first protecting window glass 7 and image-forming objective lens 2;
Density wedge filter adjustment barrel 13 is directly enclosed within and compensates on filtering apparatus main body sleeve 1, and carries out position with banking pin 9 and fix, and optical filtering 6 and the first protecting window glass 7 are placed in optical filtering adjustment barrel 7, placement gag lever post 11 below optical filtering 6;
Density wedge filter adjustment barrel 13 can rotate arbitrarily along optical axis, and fixes with banking pin 9, and optical filtering 6 can change arbitrarily the angle with optical axis by rotational lock screw 10, is fixed after rotation again.
The utility model is by the regulating part of the various optical element of design compensation filtering apparatus; and devise the stabilizing means of its adjustment structure; and devise the protecting window compensating filtering apparatus; achieve compensation filtering apparatus to carry out before use debugging and encapsulating; directly can use in the light path of imaging system, and the impact of extraneous dust can be prevented.
Claims (1)
1. the compensation filtering apparatus structure in a multisequencing laser shadowgraph system, it is characterized in that, comprise main body sleeve (1), image-forming objective lens (2), first packing ring (3), optical filtering adjustment barrel (4), optical filtering stationary magazine creel (5), optical filtering (6), second packing ring (301), first protecting window glass (7), first pressure ring (8), banking pin (9), lock-screw (10), gag lever post (11), 3rd packing ring (302), second pressure ring (801), second pressure ring (802), 4th packing ring (303), density wedge filter (12), Second Protection Window mouth glass (701) and density wedge filter adjustment barrel (13),
The front and back end of main body sleeve (1) places the first protecting window glass (7) and the first protecting window glass (701) respectively, Second Protection Window mouth glass (701) and density wedge filter (12) are placed in density wedge filter adjustment barrel (13), and optical filtering (6) is placed between the first protecting window glass (7) and image-forming objective lens (2);
Density wedge filter adjustment barrel (13) is directly enclosed within and compensates on filtering apparatus main body sleeve (1), and carry out position with banking pin (9) and fix, optical filtering (6) and the first protecting window glass (7) are placed in optical filtering adjustment barrel (4), and optical filtering (6) places gag lever post (11) below;
Density wedge filter adjustment barrel (13) can rotate arbitrarily along optical axis, and fix with banking pin (9), optical filtering (6) can change arbitrarily the angle with optical axis by rotational lock screw (10), is fixed after rotation again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520930308.6U CN205229658U (en) | 2015-11-20 | 2015-11-20 | Compensation filter structure among multi -sequence laser shade photographic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520930308.6U CN205229658U (en) | 2015-11-20 | 2015-11-20 | Compensation filter structure among multi -sequence laser shade photographic system |
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| Publication Number | Publication Date |
|---|---|
| CN205229658U true CN205229658U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520930308.6U Expired - Fee Related CN205229658U (en) | 2015-11-20 | 2015-11-20 | Compensation filter structure among multi -sequence laser shade photographic system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425529A (en) * | 2015-11-20 | 2016-03-23 | 中国空气动力研究与发展中心超高速空气动力研究所 | Compensative filtering apparatus structure in multi-sequence laser shadowgraph |
| CN106094389A (en) * | 2016-08-23 | 2016-11-09 | 大连理工大学 | A kind of thermal imaging system lens protecting apparatus protecting composite chip |
| CN107193103A (en) * | 2017-07-06 | 2017-09-22 | 福建福光股份有限公司 | Wide optical dynamic range wide spectrum pick-up lens |
| CN109188639A (en) * | 2018-11-05 | 2019-01-11 | 中国空气动力研究与发展中心超高速空气动力研究所 | Middle image camera camera lens for the imaging of shade flow field |
-
2015
- 2015-11-20 CN CN201520930308.6U patent/CN205229658U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425529A (en) * | 2015-11-20 | 2016-03-23 | 中国空气动力研究与发展中心超高速空气动力研究所 | Compensative filtering apparatus structure in multi-sequence laser shadowgraph |
| CN105425529B (en) * | 2015-11-20 | 2018-08-10 | 中国空气动力研究与发展中心超高速空气动力研究所 | Compensation filtering apparatus structure in multisequencing laser shadowgraph |
| CN106094389A (en) * | 2016-08-23 | 2016-11-09 | 大连理工大学 | A kind of thermal imaging system lens protecting apparatus protecting composite chip |
| CN106094389B (en) * | 2016-08-23 | 2019-03-05 | 大连理工大学 | A kind of thermal imaging system lens protecting apparatus protecting composite material chip |
| CN107193103A (en) * | 2017-07-06 | 2017-09-22 | 福建福光股份有限公司 | Wide optical dynamic range wide spectrum pick-up lens |
| CN107193103B (en) * | 2017-07-06 | 2020-04-21 | 福建福光股份有限公司 | Wide-light dynamic range and wide-spectrum camera lens |
| CN109188639A (en) * | 2018-11-05 | 2019-01-11 | 中国空气动力研究与发展中心超高速空气动力研究所 | Middle image camera camera lens for the imaging of shade flow field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20161120 |