CN207882551U - A kind of medium-sized bore objective system - Google Patents
A kind of medium-sized bore objective system Download PDFInfo
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- CN207882551U CN207882551U CN201721804063.8U CN201721804063U CN207882551U CN 207882551 U CN207882551 U CN 207882551U CN 201721804063 U CN201721804063 U CN 201721804063U CN 207882551 U CN207882551 U CN 207882551U
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- 238000009434 installation Methods 0.000 claims abstract description 43
- 239000003292 glue Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 230000035515 penetration Effects 0.000 claims description 6
- 239000005304 optical glass Substances 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model is related to a kind of optical lens technologies, more particularly to a kind of medium-sized bore objective system, including balsaming lens group, the balsaming lens group includes positive and negative lenses, two eyeglasses use photosensitive glue glued adhesion, make that airspace is not present between positive lens and negative lens, the diameter of the positive and negative lenses is 51.45 51.5mm, it further include the objective lens frame for installing balsaming lens group, the objective lens frame is equipped with the fixed component of fixed glued lens group, is additionally provided with the location and installation component for position objective frame.The balsaming lens of the objective system ensures image quality, is adapted to the eyepiece system that zoom multiple is 1x 2.5x, the focal length of formation is 240 ± 2mm, saves use cost, improves image quality；And the design of fixed component and location and installation component, it realizes the Fast Installation of objective system, objective lens fitting structure is avoided to interfere its performance.
Description
Technical field
The utility model is related to a kind of optical lens technology, especially a kind of medium-sized bore objective system.
Background technology
Object lens are indispensable components in landscape lens, and object lens are usually lens made of the gluing used in landscape lens
Group, objective lens are typically to be formed with two lens gluings, less with the image defects and regulated variable that overcome single lens
Situation is increased using regulated variable after two lens combinations, and then can improve the image quality of object lens.
However, the balsaming lens of object lens is designed for heavy caliber landscape lens mostly at present, for medium caliber
Small-sized landscape lens, in order to be adapted to the eyepiece system that zoom ratio is 1x-2.5x, corresponding objective lens group needs exclusively carry out
Design, it is that 200-300mm improves image quality to meet imaging needs to make the focal length of object lens；Meanwhile in small-sized landscape lens,
The installation of object lens is also not suitable for being realized with bigbore objective lens fitting structure, to avoid objective lens fitting structure to whole adjustment
Interference, even has an impact the image quality of landscape lens.
Utility model content
The goal of the invention of the utility model is：Balsaming lens for existing object lens is designed for heavy caliber landscape lens
, when facing small-sized landscape lens, in order to be adapted to the eyepiece system that zoom ratio is 1x-2.5x, corresponding objective lens group needs
The technical issues of exclusively carrying out design, and being also required to be adjusted for the objective lens fitting structure of small-sized landscape lens, provides one
The balsaming lens of the medium-sized bore objective system of kind, the objective system ensures image quality, and it is 1x-2.5x's to be adapted to zoom multiple
The focal length of eyepiece system, formation is 240 ± 2mm, saves use cost, improves image quality；And fixed component and location and installation
The Fast Installation of objective system is realized in the design of component, and objective lens fitting structure is avoided to interfere its performance.
To achieve the goals above, the technical solution adopted in the utility model is：
A kind of medium-sized bore objective system, including balsaming lens group, the balsaming lens group includes positive and negative lenses,
Two eyeglasses use photosensitive glue glued adhesion, make that airspace, the positive and negative lenses are not present between positive lens and negative lens
Diameter be 51.45-51.5mm, further include the objective lens frame for installing balsaming lens group, the objective lens frame is equipped with fixed glued
The fixed component of lens group is additionally provided with the location and installation component for position objective frame.
The balsaming lens group of the objective system includes positive and negative lenses, and two eyeglasses use photosensitive glue glued adhesion,
The defects of making glue-line free from admixture, bubble, dust, ensures image quality；The diameter of positive and negative lenses is 51.45-
51.5mm is adapted to the eyepiece system that zoom multiple is 1x-2.5x, and the focal length of formation is 240 ± 2mm, becomes universal and fits
The objective system of Ying Yu little zoom multiple eyepiece systems saves use cost, improves image quality；And in installation balsaming lens group
Objective lens frame on the fixed glued lens group of setting fixed component, be additionally provided with location and installation component, realize the quick of objective system
Installation, avoids objective lens fitting structure from interfering its performance.Above-mentioned medium-sized bore refer to bore be 50-80mm, wherein in
Small-bore 50-60mm, Large diameter 60-80mm.
As the preferred embodiment of the utility model, the positive lens is biconvex lens, two convex surface is respectively positive lens
The second convex surface of first convex surface and positive lens, the negative lens are concave-convex lens, the concave of the negative lens and positive lens
One of crowning radius is identical, and the convex surface of the positive lens and the concave surface of negative lens are glued.The concave of the negative lens
Identical as one of positive lens crowning radius, direction when installation is on the contrary, conducive to ensureing between positive and negative lenses completely
It is bonded cementing, completely eliminates airspace, be conducive to installation in a limited space, keep overall structure compacter slim and graceful, be conducive to
Obtain stable light transmission path.
As the preferred embodiment of the utility model, the positive lens is made of crown board class optical glass material, described negative saturating
Mirror is made of flint class optical glass material.Specifically, H-BAK2 materials can be selected in positive lens, and ZF3 materials can be selected in negative lens.
As the preferred embodiment of the utility model, the center thickness of the positive lens is 9 ± 0.05mm, and positive lens two
Crowning radius is respectively the first crowning radius of positive lens 150.31mm ± 1.25 μm, the second crowning radius of positive lens 114.533mm
± 1.25 μm, the center thickness of the negative lens is 4 ± 0.05mm, and the negative lens concave on negative lens is also
114.533mm ± 1.25 μm, negative lens crowning radius are 332.51mm ± 1.25 μm.
As the preferred embodiment of the utility model, it is coated with multi-layered antireflection coating on the first convex surface of positive lens, in negative lens
Also multi-layered antireflection coating is coated on convex surface, and the light penetration of anti-reflection film is greater than or equal to 99%.On the first convex surface of positive lens and bear
Multi-layered antireflection coating is plated on the convex surface of lens, and the second convex surface of positive lens and the cooperation of the concave surface of negative lens are glued, thus make
It obtains and is equipped with anti-reflection film on the incidence surface and light-emitting surface of entire balsaming lens, increase light penetration, improve entire balsaming lens
Image quality.
As the preferred embodiment of the utility model, the wave band peak value of the anti-reflection film is 550nm, wave band 400nm-
700nm。
As the preferred embodiment of the utility model, the objective lens frame is the tubular structure being adapted with landscape lens internal diameter,
The inner wall of objective lens frame is equipped with the eyeglass cushion cap of placement balsaming lens group.Eyeglass cushion cap is easily installed and positions balsaming lens group,
Convenient for Fast Installation balsaming lens group.The external screw thread for being connect with view lens barrel inner wall is equipped on objective lens frame outer wall.
As the preferred embodiment of the utility model, the fixed component is the object lens pressure installed with objective lens frame one end fits
Circle forms the mounting structure of fixed glued lens group between the object lens trim ring and eyeglass cushion cap.The installation in objective lens frame one end
Object lens trim ring cooperatively forms the mounting structure of fixed glued lens group with eyeglass cushion cap, stablizes the position of balsaming lens group, is convenient for
The objective system of stability is obtained after assembling.
As the preferred embodiment of the utility model, to be threadedly coupled between the object lens trim ring and objective lens frame, in objective lens frame
Inner wall is equipped with object lens trim ring and installs screw thread.Screw thread is installed in objective lens frame inner wall setting object lens trim ring, then in object lens trim ring outer wall
It is equipped with connection screw thread, balsaming lens mounting structure that is easy to disassemble, also allowing for adjusting and being formed stabilization.
As the preferred embodiment of the utility model, the location and installation component is the objective lens frame being connect with the objective lens frame other end
Locating ring, the objective lens frame locating ring include the linkage section and locating ring of integral type, and the objective lens frame inner wall is equipped with for connecting
The locating ring of section installation installs screw thread.The locating ring installation of setting installation objective lens frame locating ring on the inner wall of the objective lens frame other end
Screw thread is correspondingly arranged connection screw thread on the linkage section outer wall of objective lens frame locating ring, and realization is stably connected with structure, then passes through positioning
Ring realizes positioning, and the position of entire objective system is locked.
As the preferred embodiment of the utility model, the locating ring extends radially outwardly along objective lens frame locating ring, in object lens
Frame locating ring end forms hook arrangement, and when installing on objective system to landscape lens lens barrel, the locating ring is resisted against view
The end of mirror lens barrel.The locating ring of objective lens frame locating ring extends radially outwardly along objective lens frame locating ring, and forms hook arrangement, closes
Reason design extension size can form the location structure of objective system with landscape lens lens barrel when installing objective system, ensure object
While the stability of mirror system, system good appearance is allowed.
In conclusion by adopting the above-described technical solution, the utility model has the beneficial effects that：
1, the balsaming lens of the objective system ensures image quality, is adapted to the eyepiece system that zoom multiple is 1x-2.5x,
The focal length of formation is 240 ± 2mm, saves use cost, improves image quality；And fixed component and location and installation component are set
Meter, realizes the Fast Installation of objective system, objective lens fitting structure is avoided to interfere its performance；
2, one of the concave of negative lens and positive lens crowning radius are identical, and direction is on the contrary, be conducive to when installation
Ensure to be bonded completely cementing between positive and negative lenses, completely eliminate airspace, is conducive to installation in a limited space, makes
Overall structure is compacter slim and graceful, conducive to stable light transmission path is obtained；
3, plate multi-layered antireflection coating on the first convex surface of positive lens and the convex surface of negative lens, and the second convex surface of positive lens and
The concave surface cooperation of negative lens is glued, allows for being equipped with anti-reflection film on the incidence surface and light-emitting surface of entire balsaming lens in this way, increase
Add light penetration, improves the image quality of entire balsaming lens；
4, screw thread is installed in objective lens frame inner wall setting object lens trim ring, then connection screw thread is equipped in object lens trim ring outer wall,
Balsaming lens mounting structure that is easy to disassemble, also allowing for adjusting and being formed stabilization；
5, the locating ring of setting installation objective lens frame locating ring installs screw thread on the inner wall of the objective lens frame other end, in objective lens frame
Connection screw thread is correspondingly arranged on the linkage section outer wall of locating ring, realization is stably connected with structure, then realizes and position by locating ring, will
The position locking of entire objective system；
6, the locating ring of objective lens frame locating ring extends radially outwardly along objective lens frame locating ring, and forms hook arrangement, rationally
Extension size is designed, the location structure of objective system can be formed with landscape lens lens barrel when installing objective system, ensure object lens
The stability of system.
Description of the drawings
Fig. 1 is the medium-sized bore objective system structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of objective lens frame in Fig. 1.
Fig. 3 is the structural schematic diagram of objective lenses group in embodiment.
Fig. 4 is the structural schematic diagram of the positive lens of objective lenses group in Fig. 3.
Fig. 5 is the structural schematic diagram of the negative lens of objective lenses group in Fig. 3.
Fig. 6 is that light passes through the transmission route figure after objective lenses group in embodiment.
Fig. 7 is the schematic diagram that medium-sized bore objective system is used for landscape lens in embodiment.
It is marked in figure：1- positive lens, 2- negative lenses, 3- objective lens frames, 301- object lens trim rings install screw thread, and 302- eyeglasses are held
Platform, 303- locating rings install screw thread, install screw thread outside 304-, 4- object lens trim rings, 5- objective lens frame locating rings, 501- linkage sections,
502- locating rings, the medium-sized bore objective systems of 6-, 7- landscape lens lens barrels, 8- inverted images portion, 9- eyepiece systems, D- balsaming lens are straight
Diameter, t1- positive lens center thickness, t2- negative lens center thickness, the first crowning radius of R1- positive lens, R2- positive lens second are convex
Radius surface, R3- negative lens concaves.
Specific implementation mode
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only explaining this
Utility model is not used to limit the utility model.
Embodiment 1
As shown in Figure 1, the medium-sized bore objective system of the present embodiment, including balsaming lens group, the balsaming lens group packet
Positive lens 1 and negative lens 2 are included, two eyeglasses use photosensitive glue glued adhesion, make to be not present between air between positive lens 1 and negative lens 2
Every the diameter of the positive lens 1 and negative lens 2 is 51.5mm, and diameter tolerance is 0 mm to -0.05mm, convenient for assembly；Separately
Outside, further include the objective lens frame 3 for installing balsaming lens group, the objective lens frame 3 is equipped with the fixed component for fixing glued lens group, also
Equipped with the location and installation component for position objective frame 3.
The balsaming lens group of the objective system of the present embodiment includes positive and negative lenses, and two eyeglasses are using photosensitive
Glue glued adhesion, the defects of making glue-line free from admixture, bubble, dust, ensure image quality；The diameter of positive and negative lenses is
51.5mm is adapted to the eyepiece system that zoom multiple is 1x-2.5x, and the focal length of formation is 240 ± 2mm, becomes universal and fits
The objective system of Ying Yu little zoom multiple eyepiece systems saves use cost, improves image quality；And in installation balsaming lens group
Objective lens frame on the fixed glued lens group of setting fixed component, be additionally provided with location and installation component, realize the quick of objective system
Installation, avoids objective lens fitting structure from interfering its performance.The medium-sized bore of the present embodiment meaning refers to that bore is 50-
80mm。
Embodiment 2
As shown in Figures 1 to 7, according to medium-sized bore objective system described in embodiment 1, the positive lens 1 of the present embodiment is
Biconvex lens, two convex surface are respectively the second convex surface of the first convex surface of positive lens and positive lens, and the negative lens is concave-convex lens,
One of the concave of the negative lens 2 and positive lens 1 crowning radius is identical, the convex surface of the positive lens 1 with it is negative saturating
The concave surface of mirror 2 is glued.One of the concave of the negative lens and positive lens crowning radius is identical, direction phase when installation
Instead, cementing conducive to being bonded completely between guarantee positive and negative lenses, airspace is completely eliminated, is conducive in a limited space
Installation keeps overall structure compacter slim and graceful, conducive to stable light transmission path is obtained.
Specifically, the positive lens center thickness t1 is 9 ± 0.05mm, and 1 two crowning radius of positive lens are respectively just
The first crowning radius of lens R1：150.31mm ± 1.25 μm, the second crowning radius of positive lens R2：114.533mm ± 1.25 μm, institute
It is 4 ± 0.05mm to state negative center thickness t2, and the negative lens concave R2 on negative lens 2 is also ± 1.25 μ of 114.533mm
M, negative lens crowning radius is 332.51mm ± 1.25 μm.
In the present embodiment, positive lens 1 selects H-BAK2 materials to be made, and negative lens 2 selects ZF3 materials to be made.
Further, it is coated with multi-layered antireflection coating on the first convex surface of positive lens, is also coated on the convex surface of negative lens 2 more
Layer anti-reflection film, and the light penetration of anti-reflection film is 99.5%.It is plated on the first convex surface of positive lens and the convex surface of negative lens more
Layer anti-reflection film, and the second convex surface of positive lens and the cooperation of the concave surface of negative lens are glued, allow for entire balsaming lens in this way enters light
It is equipped with anti-reflection film on face and light-emitting surface, increases light penetration, improves the image quality of entire balsaming lens.
Specifically, the wave band peak value of the anti-reflection film of the present embodiment is 550nm, wave band 400nm-700nm.
As shown in fig. 6, light passes through the light transmission figure after balsaming lens group, obtain being adapted to zoom multiple being 1x-
The object lens of 2.5x eyepiece systems, focal length are 240 ± 2mm, become the universal object for being adapted to small zoom multiple eyepiece system
Mirror system.
Embodiment 3
As shown in Figures 1 to 7, the medium-sized bore objective system according to embodiment 1 or embodiment 2, the present embodiment
Objective lens frame 3 is the tubular structure being adapted with landscape lens internal diameter, and the mirror of placement balsaming lens group is equipped on the inner wall of objective lens frame 3
Piece cushion cap 302.Eyeglass cushion cap is easily installed and positions balsaming lens group, is convenient for Fast Installation balsaming lens group.Outside objective lens frame
Wall is equipped with the external screw thread for being connect with view lens barrel inner wall.
Further, the fixed component is the object lens trim ring 4 installed with 3 one end fits of objective lens frame, the object lens trim ring 4
The mounting structure of fixed glued lens group is formed between eyeglass cushion cap 302.In the object lens trim ring and mirror of the installation of objective lens frame one end
Piece cushion cap cooperatively forms the mounting structure of fixed glued lens group, stablizes the position of balsaming lens group, steady convenient for being obtained after assembling
The objective system of qualitative energy.
In the present embodiment, to be threadedly coupled between the object lens trim ring 4 and objective lens frame 3, object is equipped on 3 inner wall of objective lens frame
Mirror trim ring installs screw thread 301.Screw thread is installed in objective lens frame inner wall setting object lens trim ring, then company is equipped in object lens trim ring outer wall
Connect screw thread, balsaming lens mounting structure that is easy to disassemble, also allowing for adjusting and being formed stabilization.
Further, the location and installation component is the objective lens frame locating ring 5 being connect with 3 other end of objective lens frame, the object
Frame locating ring 5 includes the linkage section 501 and locating ring 502 of integral type, and 3 inner wall of the objective lens frame, which is equipped with, is used for linkage section 501
The locating ring of installation installs screw thread 303.The locating ring peace of setting installation objective lens frame locating ring on the inner wall of the objective lens frame other end
Screw thread is filled, connection screw thread is correspondingly arranged on the linkage section outer wall of objective lens frame locating ring, realization is stably connected with structure, then by fixed
Position ring realizes positioning, and the position of entire objective system is locked.
Further, the locating ring 502 extends radially outwardly along objective lens frame locating ring 5, at 5 end of objective lens frame locating ring
Portion forms hook arrangement；In addition, be additionally provided with outer installation screw thread 304 on the outer wall of objective lens frame 3, for directly with landscape lens lens barrel
The screw-thread fit installation being arranged on 7 inner walls, achievees the effect that objective system stablizes installation.The locating ring of objective lens frame locating ring is along object
Frame locating ring extends radially outwardly, and forms hook arrangement, rationally design extension size, can when installing objective system, with
Landscape lens lens barrel forms the location structure of objective system, while ensureing the stability of objective system, allows system good appearance.
As shown in fig. 7, when the medium-sized bore objective system 6 of the present embodiment to be installed on landscape lens lens barrel 7, it is described fixed
Position ring 502 is resisted against the end of landscape lens lens barrel 7, and objective system stablizes installation, then by inverted image portion 8 by the imaging of objective system
It is transmitted on eyepiece system 9, the view effect of high quality is presented.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (10)
1. a kind of medium-sized bore objective system, including balsaming lens group, which is characterized in that the balsaming lens group includes positive lens
And negative lens, two eyeglasses use photosensitive glue glued adhesion, make that airspace, the positive lens are not present between positive lens and negative lens
Diameter with negative lens is 51.45-51.5mm, further includes the objective lens frame for installing balsaming lens group, and the objective lens frame is equipped with
The fixed component of fixed gluing lens group, is additionally provided with the location and installation component for position objective frame.
2. medium-sized bore objective system according to claim 1, which is characterized in that the positive lens be biconvex lens, its
Two convex surfaces are respectively the second convex surface of the first convex surface of positive lens and positive lens, and the negative lens is concave-convex lens, the negative lens
One of concave and positive lens crowning radius it is identical, the convex surface of the positive lens and the concave surface of negative lens are glued.
3. medium-sized bore objective system according to claim 1, which is characterized in that the positive lens is optical glass material
It is made, the negative lens is made of optical glass material.
4. medium-sized bore objective system according to claim 2, which is characterized in that the center thickness of the positive lens is 9
± 0.05mm, and two crowning radius of positive lens are respectively the first crowning radius of positive lens 150.31mm ± 1.25 μm, positive lens
The center thickness of second crowning radius 114.533mm ± 1.25 μm, the negative lens is 4 ± 0.05mm, and negative on negative lens
It is 332.51mm ± 1.25 μm that concave lens surface radius, which is also 114.533mm ± 1.25 μm, negative lens crowning radius,.
5. medium-sized bore objective system according to claim 4, which is characterized in that be coated on the first convex surface of positive lens more
Layer anti-reflection film is also coated with multi-layered antireflection coating on the convex surface of negative lens, and the light penetration of anti-reflection film is greater than or equal to 99%.
6. the medium-sized bore objective system according to one of claim 1-5, which is characterized in that the objective lens frame is and view
The adaptable tubular structure of mirror internal diameter, is equipped with the eyeglass cushion cap of placement balsaming lens group on the inner wall of objective lens frame.
7. medium-sized bore objective system according to claim 6, which is characterized in that the fixed component be and objective lens frame one
The object lens trim ring of end cooperation installation forms the mounting structure of fixed glued lens group between the object lens trim ring and eyeglass cushion cap.
8. medium-sized bore objective system according to claim 7, which is characterized in that between the object lens trim ring and objective lens frame
To be threadedly coupled, object lens trim ring installation screw thread is equipped on objective lens frame inner wall.
9. medium-sized bore objective system according to claim 6, which is characterized in that the location and installation component is and object lens
The objective lens frame locating ring of frame other end connection, the objective lens frame locating ring includes the linkage section and locating ring of integral type, the object
Frame inner wall is equipped with installs screw thread for the locating ring of linkage section installation.
10. medium-sized bore objective system according to claim 9, which is characterized in that the locating ring is positioned along objective lens frame
Circle extends radially outwardly, and hook arrangement is formed in objective lens frame locating ring end, when installing on objective system to landscape lens lens barrel,
The locating ring is resisted against the end of landscape lens lens barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721804063.8U CN207882551U (en) | 2017-12-21 | 2017-12-21 | A kind of medium-sized bore objective system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721804063.8U CN207882551U (en) | 2017-12-21 | 2017-12-21 | A kind of medium-sized bore objective system |
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| Publication Number | Publication Date |
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| CN207882551U true CN207882551U (en) | 2018-09-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022099918A1 (en) * | 2020-11-16 | 2022-05-19 | 鄂州肯维捷斯光电科技有限公司 | Multi-lens centring apparatus and method |
-
2017
- 2017-12-21 CN CN201721804063.8U patent/CN207882551U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022099918A1 (en) * | 2020-11-16 | 2022-05-19 | 鄂州肯维捷斯光电科技有限公司 | Multi-lens centring apparatus and method |
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Address after: No. 101, 1st Floor, Building 2, Optoelectronic Industry Park, No. 187, Section 1, Changcheng Road, Xihanggang Street, Shuangliu District, Chengdu City, Sichuan Province 610200 Patentee after: Sichuan Guoke Optoelectronic Technology Factory Country or region after: China Address before: 610207 photoelectric Institute, Wenxing Town, Shuangliu County, Chengdu City, Sichuan Province Patentee before: THE OPTICAL ELEMENT FACTORY OF THE INSTITUTE OF OPTICS AND ELECTRONICS THE CHINESE ACADEMY OF SCIENCES Country or region before: China |
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