CN217443572U - Antireflection film - Google Patents
Antireflection film Download PDFInfo
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- CN217443572U CN217443572U CN202122931904.4U CN202122931904U CN217443572U CN 217443572 U CN217443572 U CN 217443572U CN 202122931904 U CN202122931904 U CN 202122931904U CN 217443572 U CN217443572 U CN 217443572U
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Abstract
The utility model provides an antireflection coating plates on glass substrate, and antireflection coating includes low refracting index layer and the high refracting index layer that piles up in turn, and low refracting index layer is made by silicon-aluminum oxide, and high refracting index layer is made by lanthanum titanate, along glass substrate thickness direction, and the structure on low refracting index layer and the high refracting index layer that piles up in turn includes first low refracting index layer, second high refracting index layer, third low refracting index layer, fourth high refracting index layer, fifth low refracting index layer in proper order, and total physical thickness is 303.28 nm. In addition, the high-refractive-index layer made of lanthanum titanate and the low-refractive-index layer made of silicon-aluminum oxide can improve the connection stability between the glass substrate and the plated antireflection film on the basis of meeting the light transmission performance.
Description
Technical Field
The utility model relates to a membrane technical field, concretely relates to antireflection coating.
Background
In optical components such as automobile glass, glasses, camera lenses, TFT-LCD and OLED displays, due to the reflection action of the surfaces of the optical components, certain reflection can be generated to light in the using process, so that the loss of light energy is caused, and the imaging effect of the optical components is reduced. In order to reduce the optical energy loss on the surface of the optical component and increase the imaging quality, an antireflection film is generally plated on the surface of the optical component.
However, the conventional antireflection film has poor light reflection performance and poor adhesion of a coating film layer, which results in poor performance of a component having the film layer.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide an antireflection film to solve the technical problem of improving the transmittance and adhesion of the plated film layer.
An embodiment of the utility model provides an antireflection coating, plate on glass substrate, antireflection coating includes low refractive index layer and the high refractive index layer of stacking in turn along the thickness direction of glass substrate, low refractive index layer is made by silicon-aluminum oxide, high refractive index layer is made by lanthanum titanate; the structure of the alternately stacked low refractive index layers and high refractive index layers sequentially comprises a first low refractive index layer, a second high refractive index layer, a third low refractive index layer, a fourth high refractive index layer and a fifth low refractive index layer along the thickness direction of the glass substrate; the physical thickness of the structure of the alternately stacked low refractive index layers and high refractive index layers was 303.28 nm.
The antireflection film adopts the low-refractive-index layers and the high-refractive-index layers which are alternately stacked, and the innermost side and the outermost side of the antireflection film are both the low-refractive-index layers along the thickness direction of the glass substrate, so that light rays enter the glass substrate after being refracted and reflected for many times in the antireflection film, the reflection of the light rays is reduced, and the transmissivity of the light rays is increased.
In some embodiments, the physical thickness of the first low refractive index layer is 27.44nm, the physical thickness of the second high refractive index layer is 17.46nm, the physical thickness of the third low refractive index layer is 40.07nm, the physical thickness of the fourth high refractive index layer is 129.07nm, and the physical thickness of the fifth low refractive index layer is 89.24 nm.
Therefore, the antireflection film has lower reflectivity by reasonably configuring the thickness of each refractive index layer.
In some embodiments, the structure of alternating low and high index layers has a minimum transmission of greater than 91.50% for light having a wavelength in the range of 400nm to 700 nm.
Therefore, the requirement of the optical component coated with the antireflection film on visible light can be met by reasonably setting the minimum transmissivity.
In some embodiments, the structure of alternating low and high refractive index layers has an average transmission of greater than 93.50% for light having a wavelength in the range of 400nm to 700 nm.
Therefore, the optical component plated with the antireflection film has a wider application range by reasonably setting the average transmissivity.
In some embodiments, the structure of the alternately stacked low refractive index layers and high refractive index layers is bluish in color difference value for light having a wavelength ranging from 400nm to 700 nm.
Thus, optical components such as automobile glass, glasses, camera lenses, TFT-LCD, OLED display, etc. are seen blue.
In some embodiments, the structure of the alternately stacked low refractive index layers and high refractive index layers has a maximum reflectance of ≦ 3.0% for light having a wavelength ranging from 400nm to 700nm and an incident angle ranging from 0 ° to 40 °.
Therefore, through reasonable setting of the maximum reflectivity, the phenomenon that the transmissivity of the antireflection film to visible light with the incident angle range of 0-40 degrees is too low due to too high maximum reflectivity is avoided, and the imaging quality of an optical component plated with the antireflection film is not high.
In some embodiments, the structure of the alternately stacked low refractive index layers and high refractive index layers has an average reflectance of ≦ 1.5% for light having a wavelength ranging from 400nm to 700nm and an incident angle ranging from 0 ° to 40 °.
Therefore, by reasonably setting the average reflectivity, the antireflection film has lower reflectivity to visible light with an incidence angle ranging from 0 to 40 degrees, and the imaging quality of the optical component plated with the antireflection film is improved.
In some embodiments, the structure of the alternately stacked low refractive index layers and high refractive index layers has a maximum reflectance for light having a wavelength ranging from 400nm to 700nm of light having a wavelength ranging from 430nm to 515 nm.
Thus, the antireflection film can be applied to optical components with more visible light applications.
Drawings
Fig. 1 is a schematic cross-sectional view of an antireflection film and a glass substrate according to an embodiment of the present invention.
Description of the main component symbols
Antireflection film 10
First low refractive index layer 11
Second high refractive index layer 12
Third low refractive index layer 13
Fourth high refractive index layer 14
Fifth low refractive index layer 15
Glass substrate 20
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other or mutually interacted. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
The embodiment of the utility model provides an antireflection coating, plate on glass substrate, antireflection coating includes low refracting index layer and the high refracting index layer of stacking in turn along glass substrate thickness direction, and low refracting index layer is made by silicon-aluminum oxide, and the high refracting index layer is made by lanthanum titanate; the structure of the alternately stacked low refractive index layers and high refractive index layers is represented by (LH) × nL, where L represents a low refractive index layer, H represents a high refractive index layer, n represents the number of times the low refractive index layers and the high refractive index layers are alternately stacked, and n is an integer of 2 or more.
The antireflection film adopts the low-refractive-index layers and the high-refractive-index layers which are alternately stacked, and the innermost side and the outermost side of the antireflection film are both the low-refractive-index layers along the thickness direction of the glass substrate, so that light rays enter the glass substrate after being refracted and reflected for many times in the antireflection film, the reflection of the light rays is reduced, and the transmissivity of the light rays is increased.
It should be noted that, the glass substrate in the present invention may refer to any component related to light reflection and light transmission, for example: automotive glass, glasses, camera lenses, TFT-LCD, OLED displays, and the like.
The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention provides an antireflection film 10 plated on a glass substrate 20, where the antireflection film 10 includes low refractive index layers and high refractive index layers stacked alternately in a thickness direction of the glass substrate, the low refractive index layers are made of silicon-aluminum oxide, and the high refractive index layers are made of lanthanum titanate; the structure of the alternately stacked low refractive index layers and high refractive index layers is represented by (LH) × nL, where L represents a low refractive index layer, H represents a high refractive index layer, n represents the number of times the low refractive index layers and the high refractive index layers are alternately stacked, and n is an integer of 2 or more.
The antireflection film 10 adopts the low refractive index layers and the high refractive index layers which are alternately stacked, and the innermost side and the outermost side of the antireflection film 10 are both the low refractive index layers along the thickness direction of the glass substrate 20, so that light rays enter the glass substrate after being refracted and reflected for multiple times in the antireflection film 10, the reflection of the light rays is reduced, and the transmissivity of the light rays is increased.
In the thickness direction of the glass substrate 20, the outermost side and the innermost side of the antireflection film 10 with respect to the glass substrate 20 are low refractive index layers regardless of whether n is an even number or an odd number.
In some embodiments, n is 2, that is, in the thickness direction of the glass substrate 20, the structure of the low refractive index layers and the high refractive index layers alternately stacked includes a first low refractive index layer 11, a second high refractive index layer 12, a third low refractive index layer 13, a fourth high refractive index layer 14, and a fifth low refractive index layer 15 in this order.
Thus, the antireflection film 10 is formed by stacking twice, and the manufacturing difficulty is low.
In some embodiments, the physical thickness of the structure of the alternately stacked low refractive index layers and high refractive index layers is 303.28 nm.
Thus, by properly configuring the total thickness of the antireflection film 10, the texture of the glass substrate 20 coated with the antireflection film 10 is improved.
In some embodiments, the physical thickness d1 of the first low refractive index layer 11 is 27.44nm, the physical thickness d2 of the second high refractive index layer 12 is 17.46nm, the physical thickness d3 of the third low refractive index layer 13 is 40.07nm, the physical thickness d4 of the fourth high refractive index layer 14 is 129.07nm, and the physical thickness d5 of the fifth low refractive index layer 15 is 89.24 nm.
Thus, the antireflection film 10 has a low reflectivity by appropriately configuring the thicknesses of the refractive index layers.
In some embodiments, the structure of alternately stacked low refractive index layers and high refractive index layers has a minimum transmittance of greater than 91.50% for light having a wavelength in the range of 400nm to 700 nm.
Thus, by reasonably setting the minimum transmittance, the requirement of the optical assembly plated with the antireflection film 10 on visible light can be met.
In some embodiments, the structure of alternately stacked low refractive index layers and high refractive index layers has an average transmittance of greater than 93.50% for light having a wavelength in the range of 400nm to 700 nm.
Thus, by reasonably setting the average transmittance, the optical assembly coated with the antireflection film 10 can have a wider application range.
In some embodiments, the structure of the alternately stacked low refractive index layers and high refractive index layers is bluish in color difference value for light having a wavelength ranging from 400nm to 700 nm.
The color difference value can be measured using a commercially available color difference tester. Specifically, the plated antireflection film 10 is placed in a test hole of a color difference tester, and the color difference tester irradiates the antireflection film 10 in the test hole with a light source with a specific diameter area from the color difference tester, and feeds the antireflection film back to the color difference tester in a diffuse reflection manner to calculate a color difference value. The color difference value is expressed based on, for example, the international color space Lab, where a negative b value in Lab indicates that the color difference value is bluish.
Thus, optical components such as automobile glass, glasses, camera lenses, TFT-LCD, OLED display, etc. are seen blue.
In some embodiments, the structure of the alternately stacked low refractive index layers and high refractive index layers has a maximum reflectance of ≦ 3.0% for light having a wavelength ranging from 400nm to 700nm and an incident angle ranging from 0 ° to 40 °.
Therefore, by reasonably setting the maximum reflectivity, the phenomenon that the transmissivity of the antireflection film to visible light with the incident angle range of 0-40 degrees is too low due to too high maximum reflectivity is avoided, and the imaging quality of the optical assembly plated with the antireflection film 10 is not high.
In some embodiments, the structure of the alternately stacked low refractive index layers and high refractive index layers has an average reflectance of ≦ 1.5% for light having a wavelength ranging from 400nm to 700nm and an incident angle ranging from 0 ° to 40 °.
Thus, by reasonably setting the average reflectivity, the antireflection film 10 can have a lower reflectivity for visible light with an incident angle ranging from 0 ° to 40 °, and the imaging quality of the optical assembly plated with the antireflection film 10 is improved.
In some embodiments, the structure of the alternately stacked low refractive index layers and high refractive index layers has a maximum reflectance for light having a wavelength ranging from 400nm to 700nm of light having a wavelength ranging from 430nm to 515 nm.
Thus, the antireflection film 10 can be applied to optical devices for which visible light is used in many applications.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. An antireflection film plated on a glass substrate, which is characterized in that,
the antireflection film comprises low-refractive-index layers and high-refractive-index layers which are alternately stacked in the thickness direction of the glass substrate, wherein the low-refractive-index layers are made of silicon-aluminum oxide, and the high-refractive-index layers are made of lanthanum titanate;
the structure of the alternately stacked low refractive index layers and high refractive index layers sequentially comprises a first low refractive index layer, a second high refractive index layer, a third low refractive index layer, a fourth high refractive index layer and a fifth low refractive index layer along the thickness direction of the glass substrate;
the physical thickness of the structure of the alternately stacked low refractive index layers and high refractive index layers was 303.28 nm.
2. The antireflection film of claim 1,
the physical thickness of the first low refractive index layer is 27.44nm, the physical thickness of the second high refractive index layer is 17.46nm, the physical thickness of the third low refractive index layer is 40.07nm, the physical thickness of the fourth high refractive index layer is 129.07nm, and the physical thickness of the fifth low refractive index layer is 89.24 nm.
3. The antireflection film of claim 2,
the structure of the alternately stacked low refractive index layers and high refractive index layers has a minimum transmittance of greater than 91.50% for light having a wavelength ranging from 400nm to 700 nm.
4. The antireflection film of claim 2,
the alternately stacked low refractive index layer and high refractive index layer has a structure having an average transmittance of more than 93.50% for light having a wavelength ranging from 400nm to 700 nm.
5. The antireflection film of claim 2,
the structure of the alternately stacked low refractive index layers and high refractive index layers has a color difference value of bluish with respect to light having a wavelength ranging from 400nm to 700 nm.
6. The antireflection film of claim 2,
the maximum reflectance of the structure of the alternately stacked low refractive index layers and high refractive index layers to light having a wavelength range of 400nm to 700nm and an incident angle range of 0 to 40 degrees is less than or equal to 3.0%.
7. The antireflection film of claim 2,
the average reflectivity of the structure of the alternately stacked low refractive index layers and high refractive index layers to light with a wavelength range of 400nm to 700nm and an incidence angle range of 0 to 40 degrees is less than or equal to 1.5 percent.
8. The antireflection film of claim 2,
the structure of the alternately stacked low refractive index layers and high refractive index layers has a maximum reflectance for light having a wavelength ranging from 430nm to 515nm with respect to light having a wavelength ranging from 400nm to 700 nm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122931904.4U CN217443572U (en) | 2021-11-26 | 2021-11-26 | Antireflection film |
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| CN202122931904.4U CN217443572U (en) | 2021-11-26 | 2021-11-26 | Antireflection film |
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| CN217443572U true CN217443572U (en) | 2022-09-16 |
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