CN212586575U - Shading sheet of extinction - Google Patents
Shading sheet of extinction Download PDFInfo
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- CN212586575U CN212586575U CN202021392088.3U CN202021392088U CN212586575U CN 212586575 U CN212586575 U CN 212586575U CN 202021392088 U CN202021392088 U CN 202021392088U CN 212586575 U CN212586575 U CN 212586575U
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- antireflection
- extinction
- rete
- light
- shading sheet
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Abstract
The utility model belongs to the technical field of the optical plastic, especially, relate to a shading sheet of extinction, including shading piece membrane body with through plasma sputtering set up in extinction antireflection rete on the surface of shading piece membrane body, extinction antireflection rete is every including Ti antireflection rete and the silica antireflection rete of sputter in turn, every layer the thickness of Ti antireflection rete is 10nm-350nm, every layer the thickness of silica antireflection rete is 10nm-350 nm. Compared with the prior art, the utility model discloses a Ti antireflection coating and silicon dioxide antireflection coating have better density and hardness in the shading sheet of extinction to make shading sheet scratch resistance reinforcing after the coating film, the reflectivity reduces. And the comprehensive performances of reflection reduction, hardening, fouling prevention and the like of the coated shading sheet are improved, and the coated shading sheet can be directly assembled in various cameras, such as mobile phone cameras, computer cameras, vehicle-mounted cameras and the like.
Description
Technical Field
The utility model belongs to the technical field of the optical plastic, especially, relate to a shading sheet of extinction.
Background
The optical plastic is a sheet material used as an optical shading sheet material, is mainly characterized by good temperature resistance, and is mainly used in the aspect of large-batch thin materials, such as various foods, medicines and nontoxic and sterile packaging materials; high-grade packaging materials for textiles, precision instruments and electrical components; base materials for audio tapes, video tapes, motion picture films, computer floppy disks, metal plating films, photosensitive films, and the like; electrical insulating materials, capacitor films, flexible printed circuit boards, membrane switches and other electronic and mechanical fields. The shading sheet material is mainly applied to a camera lens, such as a mobile phone camera, a computer camera, a vehicle-mounted camera and the like.
The optical shading sheet can be applied to various optical systems by various methods such as coating, bonding, machining, electroplating, vacuum plating, printing and the like, but the substrate material is soft, so that the parts are easily scratched or polluted in use, and the like, so that the parts are damaged.
In order to improve the surface hardness of the light-shielding sheet, a method of forming a hardened layer on the surface by spraying or dip-coating a hardening liquid has been proposed, but increasing the hardened layer leads to a decrease in the image quality of the light-shielding sheet film, and an increase in the reflectance, which affects the use of the light-shielding sheet film.
In view of the above, the present inventors have made extensive studies to solve various problems of the conventional light-shielding sheet, and have developed the present invention.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: aiming at the defects of the prior art, the extinction shading sheet is provided, and the problems that the base material of the film of the shading sheet in the prior art is soft, the parts are damaged due to scratch or dirt and the like easily caused in use, and the imaging quality is reduced due to the prior hardening technology are solved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a shading sheet of extinction, including the shading sheet membrane body with through plasma sputtering set up in extinction antireflection rete on the surface of shading sheet membrane body, extinction antireflection rete includes Ti antireflection rete and the silica antireflection rete of sputtering in turn (through the method of plasma sputtering), every layer the thickness of Ti antireflection rete is 10nm-350nm, every layer the thickness of silica antireflection rete is 10nm-350 nm.
Compared with the prior art, the utility model discloses a shading sheet of extinction, including the shading sheet membrane body with through plasma sputtering set up in extinction antireflection rete on the surface of shading sheet membrane body, and extinction antireflection rete is including Ti antireflection rete and the silica antireflection rete of sputter in turn in proper order, owing to Ti antireflection rete and the silica antireflection rete that forms through plasma sputtering's method have better density and hardness to make shading sheet scratch resistance reinforcing after the coating film, the reflectivity reduces. The plasma sputtering is to deposit the material in a molecular mode, so that the coating film is thin (the total thickness is less than 1 mu m), and the surface precision of the part cannot be damaged. And the comprehensive performances of reflection reduction, hardening, fouling prevention and the like of the coated shading sheet are improved, and the coated shading sheet can be directly assembled in various cameras, such as mobile phone cameras, computer cameras, vehicle-mounted cameras and the like.
Therefore, the utility model discloses fine solution the anti-dazzling screen membrane basement material among the prior art softer, in use causes fish tail or dirty etc. easily to make the part receive destruction and current stiffened technology to lead to the problem that the imaging quality descends.
As an improvement of the light-shielding sheet of the utility model, the material of the light-shielding sheet film body is PET or PI.
As an improvement of the light-shielding sheet of the light-shielding film, the reflectivity of two surfaces of the light-shielding film body is 0.7% -1.2%.
As the utility model discloses an improvement of the shading sheet of extinction, Ti subtract reflection rete with silicon dioxide subtracts reflection rete all sets up to the three-layer, and one of them one deck Ti subtracts reflection rete and is closest to the surface of shading sheet membrane body, and outmost then subtracts reflection rete for silicon dioxide, and this layer can effectively prevent the fish tail pollution scheduling problem that external contact caused. This is a preferred configuration.
As an improvement of the light-shielding sheet material of the utility model, from inside to outside, three-layer the thickness of Ti antireflection rete is 100nm, 50.01nm and 20.36nm respectively, and the three-layer the thickness of silica antireflection rete is 222.73nm, 70.23nm and 88.31nm respectively.
As an improvement of the shading sheet of the utility model discloses the extinction, from inside to outside (use the one side that is close to the shading piece membrane body as the inboard, keep away from the one side of shading piece membrane body for the outside), the three-layer the thickness of Ti antireflection rete is 150nm, 30.31nm and 12.28nm, the three-layer the thickness of silica antireflection rete is 250.2nm, 80.96nm and 96.69nm respectively.
The two optimal thickness selections are adopted, and the film layer structure is formed by optimally combining the thicknesses of all layers, has stronger surface hardness and simultaneously has better antireflection effect.
Drawings
Fig. 1 is a schematic cross-sectional view of embodiment 1 of the present invention.
Fig. 2 is a second schematic cross-sectional view of embodiment 1 of the present invention.
Fig. 3 is a reflectance spectrum graph of the light-shielding sheet in example 1 (the ordinate represents reflectance, and the abscissa represents wavelength);
fig. 4 is a graph of transmittance spectrum of the light-shielding sheet in example 1 (the ordinate represents reflectance, and the abscissa represents wavelength);
Detailed Description
The technical solution of the present invention will be described below with reference to specific examples, but the scope of the present invention is not limited thereto.
Example 1
As shown in fig. 1 and fig. 2, the present embodiment provides an extinction light-shielding sheet, which includes a light-shielding sheet film body 1 and an extinction antireflection film layer 2 disposed on one surface of the light-shielding sheet film body 1 by plasma sputtering, wherein the extinction antireflection film layer 2 includes a Ti antireflection film layer 21 and a silicon dioxide antireflection film layer 22 alternately sputtered in sequence, the thickness of each Ti antireflection film layer 21 is 10nm to 350nm, and the thickness of each silicon dioxide antireflection film layer 22 is 10nm to 350 nm.
Specifically, the material of the light shielding film body 1 is PET, and the reflectivity of both surfaces of the light shielding film body 1 is 0.9%.
The Ti antireflection film layer 21 and the silicon dioxide antireflection film layer 22 are each provided as three layers, and one of the Ti antireflection film layers 21 is closest to the surface of the light shielding sheet film body 1.
The utility model discloses in, extinction antireflection rete 2 of shading sheet is formed through plasma sputtering coating film under high vacuum environment, by Ti and SiO2Are alternately generated due to Ti and SiO2The film layer formed by adopting the plasma sputtering coating has better density and hardness, so that the scratch resistance of the coated shading sheet is enhanced, and the reflectivity is reduced. The plasma sputtering coating is characterized in that the material is deposited in a molecular mode, and the coating thickness is thin (the total thickness is less than 1 mu m), so that the surface accuracy of the part cannot be damaged. And the comprehensive performances of reflection reduction, hardening, fouling prevention and the like of the coated shading sheet are improved, and the coated shading sheet can be directly assembled in various cameras, such as mobile phone cameras, computer cameras, vehicle-mounted cameras and the like. When the lens is used, the vacuum suction pen is used for placing the light shading sheet between the lenses to achieve the effect.
From the inside to the outside (the side close to the light-shielding sheet film body 1 is the inside, and the side far from the light-shielding sheet film body 1 is the outside), the thicknesses of the three Ti antireflection film layers 21 are 100nm, 50.01nm and 20.36nm respectively, and the thicknesses of the three silicon dioxide antireflection film layers 22 are 222.73nm, 70.23nm and 88.31nm respectively.
Through the optimized combination of the thicknesses of all layers, the film layer structure has strong surface hardness and good antireflection effect, and the average reflectivity in an effective spectral region is lower than 0.1 percent (as shown in figures 3 and 4).
Comparative example 1
The light-shielding sheet in this comparative example included only the light-shielding sheet film body in example 1 without a matte antireflection film layer.
The reflectance was measured under the same conditions, and the results were: the average reflectivity of the optical shading sheet film in the effective spectral region is about 0.3-0.9%.
Therefore, the utility model discloses a set up extinction antireflection rete 2 at shading piece membrane body 1 body, reflectivity that can greatly reduced shading sheet.
Example 2
The difference from example 1 is: the shading sheet film body 1 is made of PI, the thicknesses of the three Ti antireflection film layers 21 are 150nm, 30.31nm and 12.28nm from inside to outside respectively, and the thicknesses of the three silicon dioxide antireflection film layers 22 are 250.2nm, 80.96nm and 96.69nm respectively.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the thickness and material of the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (6)
1. The utility model provides a shading sheet material of extinction, its characterized in that, including the shading sheet membrane body with through plasma sputtering set up in extinction antireflection rete on the surface of shading sheet membrane body, extinction antireflection rete includes alternately sputtered Ti antireflection rete and silica antireflection rete in proper order, every layer the thickness of Ti antireflection rete is 10nm-350nm, every layer the thickness of silica antireflection rete is 10nm-350 nm.
2. A matte light-shielding sheet according to claim 1, wherein the light-shielding sheet film body is made of PET or PI.
3. A matte light-screening sheet according to claim 1, wherein the reflectance of both surfaces of the light-screening sheet film body is 0.7% to 1.2%.
4. A matted light-shielding sheet according to claim 1, wherein said Ti antireflection film layer and said silica antireflection film layer are each provided as three layers, and wherein one of said Ti antireflection film layers is closest to the surface of said light-shielding sheet film body.
5. A matted light blocking sheet according to claim 4, wherein said three Ti antireflection film layers have thicknesses of 100nm, 50.01nm and 20.36nm, respectively, and said three silicon dioxide antireflection film layers have thicknesses of 222.73nm, 70.23nm and 88.31nm, respectively, from the inside to the outside.
6. The matted light shielding sheet according to claim 4, wherein three of said Ti antireflection film layers have thicknesses of 150nm, 30.31nm and 12.28nm, respectively, and three of said silicon dioxide antireflection film layers have thicknesses of 250.2nm, 80.96nm and 96.69nm, respectively, from the inside to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021392088.3U CN212586575U (en) | 2020-07-15 | 2020-07-15 | Shading sheet of extinction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021392088.3U CN212586575U (en) | 2020-07-15 | 2020-07-15 | Shading sheet of extinction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212586575U true CN212586575U (en) | 2021-02-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021392088.3U Active CN212586575U (en) | 2020-07-15 | 2020-07-15 | Shading sheet of extinction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212586575U (en) |
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2020
- 2020-07-15 CN CN202021392088.3U patent/CN212586575U/en active Active
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