CN114277352A - Electromagnetic shielding metal mesh coating clamp for cylindrical optical window - Google Patents
Electromagnetic shielding metal mesh coating clamp for cylindrical optical window Download PDFInfo
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- CN114277352A CN114277352A CN202210005138.5A CN202210005138A CN114277352A CN 114277352 A CN114277352 A CN 114277352A CN 202210005138 A CN202210005138 A CN 202210005138A CN 114277352 A CN114277352 A CN 114277352A
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- cylindrical optical
- clamp
- fixture
- electrode
- rectangular hole
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- 230000003287 optical effect Effects 0.000 title claims abstract description 55
- 239000002184 metal Substances 0.000 title claims abstract description 36
- 238000000576 coating method Methods 0.000 title claims abstract description 32
- 239000011248 coating agent Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000001788 irregular Effects 0.000 description 4
- 239000007888 film coating Substances 0.000 description 3
- 238000009501 film coating Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The invention discloses a set of electromagnetic shielding metal mesh grid coating clamp for a cylindrical optical window, which comprises a metal film clamp, an electrode clamp and an anti-reflection film clamp, wherein the metal film clamp, the electrode clamp and the anti-reflection film clamp respectively comprise a clamp main body, a rectangular hole for placing a cylindrical optical part is formed in the clamp main body, a supporting edge for bearing the cylindrical optical part is arranged in the rectangular hole, an included angle between the extension line of the lower end of the clamp main body and the upper end of the clamp main body is 16 degrees, the clamp can be well matched with a tool disc, the edge cannot be damaged in the coating process, a diffraction edge film layer cannot fall off, and the film layer quality is good. The coating of 100% of the surface of the cylindrical optical part is realized, the coating accuracy of the cylindrical optical part is improved, and the performance of the cylindrical optical part is improved.
Description
Technical Field
The invention relates to the technical field of cylindrical optical element tool fixtures, in particular to a set of cylindrical optical window electromagnetic shielding metal mesh coating fixture.
Background
The cylindrical optical part is irregular in shape, the gravity center is not located at the geometric center of the part, the clamping difficulty is high, the sharp corner of the part is easy to knock and damage in the clamping process, and a common cylindrical tool clamp is difficult to be matched with a tool tray of a film coating machine.
In the coating rotation process of the cylindrical optical part, due to the influence of centrifugal force, the stress of the part in all directions is not uniform, and the edge of the part can be damaged due to the continuous change of the bearing point of the clamp, so that the diffraction edge of the part is stripped, and the film quality of the part is influenced.
The coating film effective aperture required by the cylindrical optical part is special, and the common coating film tool clamp cannot meet the requirement. The coating clamp manufactured by adopting the common four-point contact mode has the advantages of complex processing, small contact area, unstable part placement, easy falling, quick clamp abrasion and high replacement frequency.
A metal mesh grid which can efficiently transmit infrared radiation in a working waveband and can efficiently shield electromagnetic waves is prepared on a window of a cylindrical optical part, and a metal film, an electrode and an anti-reflection film which meet index requirements are prepared in 3 different areas of the cylindrical optical part. The shapes of the metal film, the electrode and the antireflection film are irregular, so that the film plating with the effective aperture of 100 percent is difficult to realize, and the electromagnetic shielding performance of the window is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a set of clamp for coating electromagnetic shielding metal grids of cylindrical optical windows.
The purpose of the invention is realized by the following technical scheme:
a set of electromagnetic shielding metal mesh grid coating clamp for a cylindrical optical window comprises a metal film clamp, an electrode clamp and an anti-reflection film clamp, wherein the metal film clamp, the electrode clamp and the anti-reflection film clamp respectively comprise a clamp main body, a rectangular hole used for placing a cylindrical optical part is formed in the clamp main body, a supporting edge used for bearing the cylindrical optical part is arranged in the rectangular hole, and an included angle formed between the extension line of the lower end of the clamp main body and the upper end of the clamp main body is 16 degrees.
The technical scheme is that the supporting edges of the rectangular hole in the metal film clamp comprise two wedge-shaped supporting edges and two first arc-shaped supporting edges, the two wedge-shaped supporting edges are symmetrically arranged on the left side and the right side of the rectangular hole, and the first arc-shaped supporting edges are arranged on the front side of the rectangular hole.
The further technical scheme is that a first contact platform for supporting the cylindrical optical part is arranged on the rear side supporting edge of the rectangular hole on the metal film clamp.
According to a further technical scheme, the inclination angle of the wedge-shaped supporting edge is 20 degrees.
The further technical scheme is that electrode hole sites are symmetrically arranged on the left and right supporting edges of the rectangular hole in the electrode clamp, the width of each electrode hole site is 1.1mm, and the inclination angle is 6.03 degrees.
According to a further technical scheme, the supporting edges of the rectangular hole in the antireflection film clamp comprise two electrode retaining edges and two second arc-shaped supporting edges, the two electrode retaining edges are symmetrically arranged on the left side and the right side of the rectangular hole, electrode retaining strips are arranged on the electrode retaining edges, the width of each electrode retaining strip is 1.1mm, the inclination angle of each electrode retaining strip is 6.03 degrees, and the second arc-shaped supporting edges are arranged on the front side of the rectangular hole.
According to a further technical scheme, a second contact table for supporting the cylindrical optical part is arranged on the rear side supporting edge of the rectangular hole of the antireflection film clamp.
The invention has the following advantages:
the utility model provides a fixture can be fine and the frock dish cooperation, and the coating film in-process edge can not impaired, and diffraction limit rete can not drop, and the rete quality is intact. The coating of 100% of the surface of the cylindrical optical part is realized, the coating accuracy of the cylindrical optical part is improved, and the performance of the cylindrical optical part is improved.
Drawings
Fig. 1 is a schematic front view of a metal film clip according to the present invention.
FIG. 2 is a schematic view of the backside structure of the metal film clamp of the present invention
FIG. 3 is a schematic cross-sectional view of a metal film holder according to the present invention
Fig. 4 is a schematic front view of the electrode holder according to the present invention.
FIG. 5 is a schematic view of the back side structure of the electrode holder of the present invention.
FIG. 6 is a schematic cross-sectional view of an electrode holder according to the present invention.
FIG. 7 is a schematic view showing a front structure of an antireflection film jig of the present invention.
FIG. 8 is a schematic view of a back side structure of an antireflection film jig of the present invention.
FIG. 9 is a schematic cross-sectional view of an antireflection film jig according to the present invention.
FIG. 10 is a schematic view of a cylindrical optical window component coated by a metal film fixture according to the present invention.
FIG. 11 is a schematic view of a cylindrical optical window component coated by the electrode holder of the present invention.
FIG. 12 is a schematic view of a cylindrical optical window part coated by an antireflection film fixture according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that the products of the present invention conventionally lay out when in use, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 12, a set of electromagnetic shielding metal mesh grid coating jig for a cylindrical optical window includes a metal film jig, an electrode jig and an antireflection film jig, each of the metal film jig, the electrode jig and the antireflection film jig includes a jig main body 1, a rectangular hole 2 for placing a cylindrical optical part is formed in the jig main body 1, a supporting edge for bearing the cylindrical optical part is formed in the rectangular hole 2, and an included angle between a lower end extension line of the jig main body 1 and an upper end of the jig main body 1 is 16 °.
The supporting edges are matched with the rectangular holes to form multi-surface contact with the cylindrical surface optical parts, particularly, the supporting edges extend downwards from four side surfaces of each rectangular hole, the supporting edges are connected in a smooth mode, and meanwhile the height of the contact surface is the same as the height of the cylindrical surface optical parts at the positions. In the coating process, the molecules of the coating material are directly deposited on the thin edge of the cylindrical optical window without diffraction phenomenon. The clamp structure is matched with the cylindrical optical window structure, so that the parts can be accurately positioned, and the problems that the cylindrical optical parts are influenced by centrifugal force because the gravity center is not at the geometric center and the stress in each direction of the parts is not uniform in the coating rotation process, and the edges of the parts are damaged due to the continuous change of the bearing points of the clamp, so that the diffraction edges of the parts are stripped to influence the film quality of the parts are solved.
Further, the support limit of rectangular hole 2 on the metal film anchor clamps is including wedge support limit 3 and first arc support limit 4, wedge support limit 3 includes two, and two 3 symmetry settings in wedge support limit the left and right sides of rectangular hole 2, first arc support limit sets up the front side of rectangular hole 2.
And a first contact table 5 for supporting a cylindrical optical part is arranged on the rear side supporting edge of the rectangular hole 2 on the metal film clamp.
The angle of inclination of the wedge-shaped support edge 3 is 20 °.
Specifically, the radian and the size of the first arc-shaped supporting edge 4 are the same as those of the lower surface of the cylindrical optical component, and the height of the first contact platform 5 is the same as that of the cylindrical optical component at the position.
The irregular shape of the shaded area in fig. 10 is the effective aperture area of the metal film.
Further, electrode hole sites 6 are symmetrically arranged on the left and right supporting edges of the rectangular hole 2 on the electrode clamp, the width of each electrode hole site 6 is 1.1mm, and the inclination angle is 6.03 degrees.
The lower ends of the supporting edges of the rectangular holes 2 on the electrode clamp are plugged to ensure the support of parts, and the electrode hole positions 6 arranged on the supporting edges at the left side and the right side are convenient for realizing 100 percent coating of the effective area of the electrode position.
The hatched area irregular shapes shown on the left and right sides in fig. 11 are electrode effective aperture areas.
Furthermore, the support limit of rectangular hole 2 on the antireflection film anchor clamps is including electrode flange and second arc support limit 8, the electrode flange includes two, and two the electrode flange symmetry sets up the left and right sides of rectangular hole 2, electrode shelves strip 7 has been seted up on the electrode flange, the width of electrode shelves strip 7 is 1.1mm, and the angle of inclination is 6.03 °, second arc support limit 8 sets up the front side of rectangular hole 2.
And a second contact table 9 for supporting a cylindrical optical part is arranged on the rear side supporting edge of the rectangular hole 2 of the antireflection film clamp.
The arranged motor barrier strip 7 blocks the electrode position in the film coating process, and the antireflection film is prevented from being evaporated to the electrode area to influence the conductivity in the film coating process.
Specifically, the surface radian and the size of the second arc-shaped supporting edge 8 are the same as those of the lower surface of the cylindrical optical component.
The second contact stage 9 is at the same height as the cylindrical optical component at this position.
By adopting the coating clamp, the clamp can be well matched with a tool disc during use, the edge of the coating process cannot be damaged, the diffraction edge film layer cannot fall off, and the film layer is good in quality. The coating of 100% of the surface of the cylindrical optical part is realized, the coating accuracy of the cylindrical optical part is improved, and the performance of the cylindrical optical part is improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. One set of cylinder optical window electromagnetic shield metal mesh grid coating jig, its characterized in that: the fixture comprises a metal film fixture, an electrode fixture and an antireflection film fixture, wherein the metal film fixture, the electrode fixture and the antireflection film fixture respectively comprise a fixture main body (1), a rectangular hole (2) for placing a cylindrical optical part is formed in the fixture main body (1), a supporting edge for bearing the cylindrical optical part is arranged in the rectangular hole (2), and an included angle formed between the extension line of the lower end of the fixture main body (1) and the upper end of the fixture main body (1) is 16 degrees.
2. The set of fixture for coating electromagnetic shielding metal grids of cylindrical optical windows according to claim 1, wherein: the supporting edge of rectangular hole (2) on the metal film clamp is including wedge supporting edge (3) and first arc supporting edge (4), wedge supporting edge (3) are including two, and two wedge supporting edge (3) symmetry sets up the left and right sides of rectangular hole (2), first arc supporting edge sets up the front side of rectangular hole (2).
3. The set of fixture for coating electromagnetic shielding metal grids of cylindrical optical windows according to claim 1, wherein: and a first contact table (5) for supporting the cylindrical optical part is arranged on the rear side supporting edge of the rectangular hole (2) on the metal film clamp.
4. The set of cylindrical optical window electromagnetic shielding metal mesh coating clamp of claim 2, wherein: the angle of inclination of the wedge-shaped supporting edge (3) is 20 degrees.
5. The set of fixture for coating electromagnetic shielding metal grids of cylindrical optical windows according to claim 1, wherein: electrode hole sites (6) are symmetrically arranged on the left and right supporting edges of the rectangular hole (2) on the electrode clamp, the width of each electrode hole site (6) is 1.1mm, and the inclination angle is 6.03 degrees.
6. The set of fixture for coating electromagnetic shielding metal grids of cylindrical optical windows according to claim 1, wherein: the support limit of rectangular hole (2) on the antireflection film anchor clamps is including electrode flange and second arc support limit (8), the electrode flange includes two, and two the electrode flange symmetry sets up the left and right sides of rectangular hole (2), electrode shelves strip (7) have been seted up on the electrode flange, the width of electrode shelves strip (7) is 1.1mm, and the angle of inclination is 6.03, second arc support limit (8) set up the front side of rectangular hole (2).
7. The set of fixture for coating electromagnetic shielding metal grids of cylindrical optical windows according to claim 1, wherein: and a second contact table (9) for supporting a cylindrical optical part is arranged on the rear side supporting edge of the rectangular hole (2) of the antireflection film clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210005138.5A CN114277352A (en) | 2022-01-05 | 2022-01-05 | Electromagnetic shielding metal mesh coating clamp for cylindrical optical window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210005138.5A CN114277352A (en) | 2022-01-05 | 2022-01-05 | Electromagnetic shielding metal mesh coating clamp for cylindrical optical window |
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| Publication Number | Publication Date |
|---|---|
| CN114277352A true CN114277352A (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210005138.5A Pending CN114277352A (en) | 2022-01-05 | 2022-01-05 | Electromagnetic shielding metal mesh coating clamp for cylindrical optical window |
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| Country | Link |
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| CN (1) | CN114277352A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202017046U (en) * | 2011-02-28 | 2011-10-26 | 中国航天科工集团第三研究院第八三五八研究所 | Combined film-coating fixture |
| CN203333752U (en) * | 2013-05-27 | 2013-12-11 | 江苏宇迪光学股份有限公司 | High vacuum coating fixture for hemispherical lens |
| CN207596953U (en) * | 2017-12-07 | 2018-07-10 | 杭州秋光科技有限公司 | A kind of coating clamp component for all-pass light aperture optical mirror slip |
| CN208375106U (en) * | 2018-05-28 | 2019-01-15 | 福州弘星光电技术有限公司 | A kind of optical coating frock clamp adapting to plurality of specifications |
| US20200049859A1 (en) * | 2018-08-10 | 2020-02-13 | AAC Technologies Pte. Ltd. | Lens coating fixture |
| CN112481587A (en) * | 2020-12-04 | 2021-03-12 | 全磊光电股份有限公司 | Method and device for improving metal coverage of DFB laser |
| CN113825377A (en) * | 2021-08-27 | 2021-12-21 | 云南北方光学科技有限公司 | Method for preparing electromagnetic shielding metal mesh grid with limited space of inner concave surface |
-
2022
- 2022-01-05 CN CN202210005138.5A patent/CN114277352A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202017046U (en) * | 2011-02-28 | 2011-10-26 | 中国航天科工集团第三研究院第八三五八研究所 | Combined film-coating fixture |
| CN203333752U (en) * | 2013-05-27 | 2013-12-11 | 江苏宇迪光学股份有限公司 | High vacuum coating fixture for hemispherical lens |
| CN207596953U (en) * | 2017-12-07 | 2018-07-10 | 杭州秋光科技有限公司 | A kind of coating clamp component for all-pass light aperture optical mirror slip |
| CN208375106U (en) * | 2018-05-28 | 2019-01-15 | 福州弘星光电技术有限公司 | A kind of optical coating frock clamp adapting to plurality of specifications |
| US20200049859A1 (en) * | 2018-08-10 | 2020-02-13 | AAC Technologies Pte. Ltd. | Lens coating fixture |
| CN112481587A (en) * | 2020-12-04 | 2021-03-12 | 全磊光电股份有限公司 | Method and device for improving metal coverage of DFB laser |
| CN113825377A (en) * | 2021-08-27 | 2021-12-21 | 云南北方光学科技有限公司 | Method for preparing electromagnetic shielding metal mesh grid with limited space of inner concave surface |
Non-Patent Citations (1)
| Title |
|---|
| 光学零件工艺手册编写组: "《光学零件工艺手册（中）》", 国防工业出版社, pages: 21 - 58 * |
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Application publication date: 20220405 |