CN108253841B - Image intensifier mounting structure and low-light sighting telescope - Google Patents
Image intensifier mounting structure and low-light sighting telescope Download PDFInfo
- Publication number
- CN108253841B CN108253841B CN201810042337.7A CN201810042337A CN108253841B CN 108253841 B CN108253841 B CN 108253841B CN 201810042337 A CN201810042337 A CN 201810042337A CN 108253841 B CN108253841 B CN 108253841B
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- image intensifier
- spacer
- ring
- mounting structure
- intensifier
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- 125000006850 spacer group Chemical group 0.000 claims abstract description 63
- 238000003825 pressing Methods 0.000 claims abstract description 33
- 239000003292 glue Substances 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000003405 preventing effect Effects 0.000 description 12
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004297 night vision Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G1/00—Sighting devices
- F41G1/32—Night sights, e.g. luminescent
- F41G1/34—Night sights, e.g. luminescent combined with light source, e.g. spot light
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
- Telescopes (AREA)
Abstract
The application discloses an image intensifier mounting structure and a low-light sighting telescope, and belongs to the technical field of sighting telescope manufacturing. The image intensifier mounting structure comprises an image intensifier spacer, an image intensifier liner, a pressing ring and a mounting shell, wherein: the image intensifier spacer is arranged in a space formed by a first area of the cylindrical surface of the image intensifier, a first end surface of the image intensifier and the mounting shell; the image intensifier bushing is arranged in a space formed by a second area of the cylindrical surface of the image intensifier, a second end surface of the image intensifier and the mounting shell; a gap with a preset distance exists between the image intensifier spacer and the image intensifier lining; the press ring is pressed against the image intensifier by the image intensifier bushing. By arranging a gap with a preset distance between the image intensifier spacer and the image intensifier lining ring, the pressing force of the pressing ring is born by the image intensifier spacer and the image intensifier lining ring, so that the image intensifier is prevented from directly receiving larger pressure, and the service life of the image intensifier is prolonged.
Description
Technical Field
The invention belongs to the technical field of sighting telescope manufacturing, and particularly relates to an image intensifier mounting structure and a low-light sighting telescope.
Background
The main gun night vision sighting telescope in China is a low-light sighting telescope, and mainly adopts a composition form of an optical mechanical mechanism and a low-light image intensifier, wherein the image intensifier is a closing device in the low-light sighting telescope and is a vacuum device, the service life of the image intensifier is directly related to the service life of the low-light sighting telescope, and in addition, the high price is a main factor for forming the cost of the low-light sighting telescope. The service life of the optical device of the low-light sighting telescope can reach 15 years, and the service life of the image intensifier is 3-5 years under the condition of good vacuum environment, so that the service life of the image intensifier is a main technical approach for improving the service life of the low-light sighting telescope.
The image intensifier is installed in the active low-light sighting telescope mainly by adopting a structure that the end face is directly pressed, the structure is simple and easy to implement, but one problem is that the image intensifier directly bears the pressing force of a pressing ring, the image intensifier is a plastic pipe wall, the wall thickness is smaller than 0.8mm, silicon rubber is injected into the image intensifier except necessary devices to ensure the vacuum degree, so that the image intensifier cannot support too high pressure, pipe wall rupture, internal silica gel deformation, vacuum degree reduction and the like occur in a large-pressure environment for a long time, and therefore, modules such as an internal power supply, an optical fiber and the like are damaged, permanent damage such as screen flashing, breakdown and the like occur, and the service life of the image intensifier is obviously reduced.
Disclosure of Invention
In order to solve the problems that in the related art, the image intensifier adopts an installation mode that the end face is directly pressed, so that the image intensifier has pipe wall fracture, internal silica gel deformation, vacuum degree reduction and the like in a high-pressure environment for a long time, the invention provides an image intensifier installation structure and a low-light sighting telescope. The specific technical scheme is as follows:
In a first aspect, an image intensifier mounting structure is provided, comprising an image intensifier spacer, an image intensifier bushing, a clamping ring and a mounting housing, wherein:
The image intensifier spacer is arranged in a space formed by a first area of the cylindrical surface of the image intensifier, a first end surface of the image intensifier adjacent to the first area and the mounting shell; the image intensifier bushing is arranged in a space formed by a second area of the cylindrical surface of the image intensifier, a second end surface of the image intensifier adjacent to the second area and the mounting shell; a gap with a preset distance exists between the image intensifier spacer and the image intensifier lining; the pressing ring is pressed against the image intensifier by the image intensifier bushing such that the first end face of the image intensifier is pressed against the inside of the mounting housing by the image intensifier spacer.
By arranging a gap with a preset distance between the image intensifier spacer and the image intensifier liner, the pressing force of the pressing ring enables the image intensifier spacer to be in contact with the end face of the image intensifier liner after the pressing force is applied, the proper pressure can meet the installation reliability of the image intensifier, and after the pressure is continuously applied, the larger pressure can be borne by the image intensifier spacer and the image intensifier liner, so that the image intensifier is prevented from being directly stressed by the larger pressure. In addition, the image intensifier mounting structure provided by the application can meet the mounting of the image intensifier in all types of low-light sighting telescope, has strong practicability and can effectively solve the problem in actual production; the structure is simple, the image intensifier is effectively ensured, the comprehensive cost of the low-light sighting telescope is reduced, and the service life of equipment is prolonged.
Optionally, a wire passing groove for laying the cable is arranged on the cylindrical surface of the lining ring of the image intensifier.
Through setting up the wire casing on the face of cylinder of image intensifier bushing for image intensifier cable routing is reasonable.
Optionally, the image intensifier spacer ring is in clearance fit with the image intensifier, the inner wall of the image intensifier spacer ring is provided with evenly distributed glue grooves, the first area of the cylindrical surface of the image intensifier is coated with anti-loose glue, and the image intensifier coated with the anti-loose glue is arranged in the image intensifier spacer ring through the glue grooves.
The glue grooves are uniformly distributed on the inner wall of the spacer ring of the image intensifier, so that the cementing force is uniform, and the loosening caused by shrinkage of the image intensifier in a low-temperature environment is solved.
Optionally, the image intensifier bushing is in interference fit with the cylindrical surface of the image intensifier, and the image intensifier bushing is in clearance fit with the second end surface of the image intensifier.
Optionally, the predetermined distance is any value between 0.12mm and 0.2 mm.
Optionally, the image intensifier mounting structure further comprises an anti-rotation pin, and the anti-rotation pin is mounted on the image intensifier bushing in an interference fit manner.
Optionally, an anti-rotation pin mounting groove is formed in the mounting housing, and when the combined image intensifier is mounted in the mounting housing, the anti-rotation pin is clamped into the anti-rotation pin mounting groove.
Through setting up the rotation preventing pin to guarantee when the good image intensifier of combination is packed into this installation shell, this rotation preventing pin card is gone into in this rotation preventing pin mounting groove, thereby can play the rotation preventing effect.
Optionally, a fine thread with a self-locking function is formed on the outer surface of the pressing ring, which is attached to the mounting shell, and an anti-loose adhesive is coated on the fine thread.
The outer surface attached to the mounting shell through the pressing ring is provided with the fine thread with a self-locking function, and the fine thread is coated with anti-loosening glue, so that the reliability in strong impact can be ensured.
Optionally, the image intensifier spacer, and the pressing ring are made of metal.
The image intensifier spacer ring, the image intensifier lining ring and the pressing ring are all made of metal, so that the pressing ring can bear larger pressure axially when pressure is applied.
In a second aspect, a low-light scope is provided, comprising at least an image intensifier and the image intensifier mounting structure provided in the first aspect and in various possible implementations of the first aspect.
By arranging a gap with a preset distance between the image intensifier spacer and the image intensifier liner, the pressing force of the pressing ring enables the image intensifier spacer to be in contact with the end face of the image intensifier liner after the pressing force is applied, the proper pressure can meet the installation reliability of the image intensifier, and after the pressure is continuously applied, the larger pressure can be borne by the image intensifier spacer and the image intensifier liner, so that the image intensifier is prevented from being directly stressed by the larger pressure. In addition, the image intensifier mounting structure in the low-light sighting telescope can meet the requirement of mounting the image intensifier in almost all types of low-light sighting telescope, has strong practicability, and can effectively solve the problem in actual production; the structure is simple, the image intensifier is effectively ensured, the comprehensive cost of the low-light sighting telescope is reduced, and the service life of equipment is prolonged.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic cross-sectional view of an image intensifier and an image intensifier mounting structure provided in one embodiment of the present invention.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of the invention as detailed in the accompanying claims.
In order to improve the service life of the image intensifier, the application provides a low-light sighting telescope which comprises the image intensifier and conventional components, and also provides a novel image intensifier mounting structure. The image intensifier mounting structure in the present application is illustrated below with reference to fig. 1.
Fig. 1 is a schematic cross-sectional view of an image intensifier and an image intensifier mounting structure provided in one embodiment of the present invention. The image intensifier mounting structure includes an image intensifier spacer 10, an image intensifier spacer 20, a pressure ring 30 and a mounting housing 40.
The image intensifier spacer 10 is mounted in a space formed by a first region of the cylindrical surface of the image intensifier 50, a first end surface of the image intensifier 50 adjacent to the first region, and the mounting case 40. That is, the image intensifier spacer 10 includes a cylindrical surface portion filled in a space formed by a first region of the cylindrical surface of the image intensifier 50 and the mounting case 40, and an end surface portion filled in a space formed by a first end surface of the image intensifier 50 adjacent to the first region and the mounting case 40.
The first area of the cylindrical surface of the image intensifier 50 is an area on the cylindrical surface of the image intensifier 50 adjacent to the first end surface of the image intensifier 50, the second area of the cylindrical surface of the image intensifier 50 is an area on the cylindrical surface of the image intensifier 50 adjacent to the second end surface of the image intensifier 50, and the first end surface and the second end surface are two end surfaces of the object of the image intensifier 50.
The image intensifier bushing 20 is mounted in a space formed by a second region of the cylindrical surface of the image intensifier 50, a second end surface of the image intensifier 50 adjacent to the second region, and the mounting housing 40. That is, the image intensifier bushing 20 includes a cylindrical surface portion filled in a space formed by the second region of the cylindrical surface of the image intensifier 50 and the mounting case 40, and an end surface portion filled in a space formed by the second end surface of the image intensifier 50 adjacent to the second region and the mounting case 40.
In one possible implementation, there is a gap of a predetermined distance X between the image intensifier spacer 10 and the image intensifier collar 20. Alternatively, the predetermined distance X here may take any value between 0.12mm and 0.2 mm.
The compression ring 30 is pressed against the image intensifier 50 by the image intensifier bushing 20, with the first end face of the image intensifier 50 pressed against the inside of the mounting housing 40 by the image intensifier spacer 10.
Optionally, the image intensifier spacer 10, the image intensifier spacer 20, and the compression ring 30 are made of metal. For example, the image intensifier spacer 10, the image intensifier spacer 20, and the compression ring 30 may be an aluminum alloy, such as the common aluminum alloy 2a12.
Generally, the image intensifier 50 has a cylindrical shape, and the image intensifier spacer 10 and the image intensifier bushing 20 are solid of revolution, that is, can be fitted over the outer surface of the image intensifier 50 so as to match the outer shape of the image intensifier 50. The image intensifier spacer 10 and the image intensifier spacer 20 are generally thin-walled revolution bodies, the local wall thickness is generally about 1mm, the average wall thickness is about 1.2mm, and the axial bearing pressure can reach 300MPa.
By providing the image intensifier spacer 10, the image intensifier spacer 20, and the pressing ring 30 of metal, it is ensured that the pressing ring 30 can bear a large pressure in the axial direction when a pressure is applied.
Thus, by providing a gap of a predetermined distance between the image intensifier spacer 10 and the image intensifier spacer 20, the pressing force of the pressing ring 30 will make the image intensifier spacer 10 contact with the end surface of the image intensifier spacer 20 after application, this proper pressure will satisfy the reliability of the installation of the image intensifier 50, and after continuing to apply the pressure, the larger pressure will be borne by the metal member composed of the image intensifier spacer 10 and the image intensifier spacer 20, avoiding the image intensifier 50 from directly receiving the larger pressure.
In one possible implementation, in order to make the cable routing of the image intensifier 50 reasonable, a wire-passing groove for laying the cable may be provided on the cylindrical surface of the image intensifier bushing 20 in the present application.
In practical application, in order to avoid loosening caused by shrinkage of the image intensifier 50 in a low-temperature environment, the image intensifier spacer 10 and the image intensifier 50 may be set to be in clearance fit, and uniformly distributed glue grooves are formed in the inner wall of the image intensifier spacer 10, the first area of the cylindrical surface of the image intensifier 50 is coated with anti-loose glue 6060, and the image intensifier 50 coated with the anti-loose glue 60 is installed in the image intensifier spacer 10 through the glue grooves. In this way, the glue grooves are uniformly distributed on the inner wall of the image intensifier spacer 10, so that the cementing force is uniform, and the problem of loosening caused by shrinkage of the image intensifier 50 in a low-temperature environment is well solved.
In order to solve the problem that the image intensifier 50 may break due to the fact that the expansion ratio of the image intensifier 50 is larger than that of the image intensifier bushing 20 in a high-temperature environment, the cylindrical surfaces of the image intensifier bushing 20 and the image intensifier 50 are in interference fit, and the second end surfaces of the image intensifier bushing 20 and the image intensifier 50 are in clearance fit.
In addition, the length of the mating surface between the image intensifier bushing 20 and the mounting housing 40 may be 10mm, the mating accuracy may be 7 steps, and a gap of 0.5mm is left between the non-mating surface between the image intensifier bushing 20 and the mounting housing 40 to improve the assembly manufacturability.
In one possible implementation, to prevent the combined image intensifier 50 from being mounted to rotate within the mounting housing 40, the image intensifier 50 mounting structure provided in the present application may further include an anti-rotation pin 7070, with the anti-rotation pin 70 being mounted to the image intensifier collar 20 by an interference fit.
Optionally, the mounting housing 40 is provided with an anti-rotation pin 70 mounting groove, and when the combined image intensifier 50 is mounted in the mounting housing 40, the anti-rotation pin 70 is locked into the anti-rotation pin 70 mounting groove.
In this way, by providing the rotation preventing pin 70 and securing the rotation preventing pin 70 to be engaged in the rotation preventing pin 70 mounting groove when the combined image intensifier 50 is mounted in the mounting case 40, the rotation preventing effect can be achieved.
In one possible implementation, the outer surface of the pressing ring 30, which is attached to the mounting housing 40, is formed with a fine thread having a self-locking function, and the fine thread is coated with a locking glue 60. The reliability at the time of strong impact can be ensured by forming the fine thread having a self-locking function on the outer surface of the pressing ring 30 attached to the mounting case 40 and coating the anti-loosening adhesive 60 at the fine thread.
In summary, according to the low-light level sighting telescope and the image intensifier mounting structure provided by the application, the gap with the preset distance is arranged between the image intensifier spacer and the image intensifier spacer, the pressing force of the pressing ring enables the image intensifier spacer to be in contact with the end face of the image intensifier spacer after the application, the proper pressure can meet the mounting reliability of the image intensifier, and after the application of the pressure, the image intensifier spacer and the image intensifier spacer bear the larger pressure, so that the image intensifier is prevented from being directly stressed by the larger pressure. The image intensifier mounting structure provided by the application can meet the mounting of the image intensifier in all types of low-light sighting telescope, has strong practicability, and can effectively solve the problem in actual production; the structure is simple, the image intensifier is effectively ensured, the comprehensive cost of the low-light sighting telescope is reduced, and the service life of equipment is prolonged.
In addition, the outer surface attached to the mounting shell through the pressing ring is provided with the fine thread with a self-locking function, and the fine thread is coated with anti-loosening glue, so that the reliability in strong impact can be ensured.
The image intensifier spacer ring, the image intensifier lining ring and the pressing ring are all made of metal, so that the pressing ring can bear larger pressure axially when pressure is applied. Through setting up the rotation preventing pin to guarantee when the good image intensifier of combination is packed into this installation shell, this rotation preventing pin card is gone into in this rotation preventing pin mounting groove, thereby can play the rotation preventing effect.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (8)
1. An image intensifier mounting structure comprising an image intensifier spacer, a clamping ring and a mounting housing, wherein:
The image intensifier spacer is arranged in a space formed by a first area of a cylindrical surface of the image intensifier, a first end surface of the image intensifier adjacent to the first area and the installation shell;
The image intensifier bushing is arranged in a space formed by a second area of the cylindrical surface of the image intensifier, a second end surface of the image intensifier adjacent to the second area and the installation shell;
A gap with a preset distance exists between the image intensifier spacer and the image intensifier lining ring, and after the pressing force of the pressing ring is applied, the image intensifier spacer is contacted with the end face of the image intensifier lining ring;
The pressing ring is pressed against the image intensifier through the image intensifier lining ring, so that the first end face of the image intensifier is pressed against the inner side of the installation shell through the image intensifier spacer ring;
The image intensifier spacer ring is in clearance fit with the image intensifier, glue grooves which are uniformly distributed are formed in the inner wall of the image intensifier spacer ring, anti-loose glue is coated on a first area of the cylindrical surface of the image intensifier, and the image intensifier coated with the anti-loose glue is arranged in the image intensifier spacer ring through the glue grooves;
The image intensifier bushing is in interference fit with the cylindrical surface of the image intensifier, and the image intensifier bushing is in clearance fit with the second end surface of the image intensifier.
2. The image intensifier mounting structure according to claim 1, wherein a wire passing groove for laying a cable is provided on the cylindrical surface of the image intensifier bushing.
3. The image intensifier mounting structure as set forth in claim 1, wherein the predetermined distance has a value of any value between 0.12mm and 0.2 mm.
4. The image intensifier mounting structure of claim 1, further comprising an anti-rotation pin mounted to said image intensifier collar by an interference fit.
5. The image intensifier mounting structure of claim 4, wherein said mounting housing is provided with an anti-rotation pin mounting slot into which said anti-rotation pin is snapped when the assembled image intensifier is installed in said mounting housing.
6. The image intensifier mounting structure according to claim 1, wherein the outer surface of the pressing ring attached to the mounting housing is formed with a fine thread having a self-locking function, and the fine thread is coated with an anti-loose adhesive.
7. The image intensifier mounting structure according to any one of claims 1 to 6, wherein said image intensifier spacer, said image intensifier spacer and said pressing ring are made of metal.
8. A low-light level scope comprising at least an image intensifier and an image intensifier mounting structure according to any of the claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810042337.7A CN108253841B (en) | 2018-01-17 | 2018-01-17 | Image intensifier mounting structure and low-light sighting telescope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810042337.7A CN108253841B (en) | 2018-01-17 | 2018-01-17 | Image intensifier mounting structure and low-light sighting telescope |
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| Publication Number | Publication Date |
|---|---|
| CN108253841A CN108253841A (en) | 2018-07-06 |
| CN108253841B true CN108253841B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810042337.7A Active CN108253841B (en) | 2018-01-17 | 2018-01-17 | Image intensifier mounting structure and low-light sighting telescope |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109061826A (en) * | 2018-08-24 | 2018-12-21 | 深圳市荣者光电科技发展有限公司 | The packaging method of low-light picture pipe |
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| CN107462980A (en) * | 2017-09-02 | 2017-12-12 | 福建福光股份有限公司 | Wide-angle high-resolution astronomical telescope |
| CN207797880U (en) * | 2018-01-17 | 2018-08-31 | 江苏北方湖光光电有限公司 | Image intensifier mounting structure and lll sight |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7397617B2 (en) * | 2005-11-08 | 2008-07-08 | Itt Manufacturing Enterprises, Inc. | Collimated optical system |
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| US7051469B1 (en) * | 2004-12-14 | 2006-05-30 | Omnitech Partners | Night sight for use with a telescopic sight |
| CN202275216U (en) * | 2011-10-14 | 2012-06-13 | 云南云奥光电有限公司 | Double-pipe binocular night vision device |
| JP2014224983A (en) * | 2013-04-24 | 2014-12-04 | 鎌倉光機株式会社 | Image stabilizer |
| CN104345439A (en) * | 2013-08-06 | 2015-02-11 | 云南北方光电仪器有限公司 | Multifunctional twilight night viewing helmet lens |
| CN105715793A (en) * | 2014-12-05 | 2016-06-29 | 中国科学院大连化学物理研究所 | Glass window piece and pool wall metal sealing structure of alkali vapor pool |
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Also Published As
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| CN108253841A (en) | 2018-07-06 |
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