CN116893453A - Optical module and electronic device - Google Patents
Optical module and electronic device Download PDFInfo
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- CN116893453A CN116893453A CN202310838145.8A CN202310838145A CN116893453A CN 116893453 A CN116893453 A CN 116893453A CN 202310838145 A CN202310838145 A CN 202310838145A CN 116893453 A CN116893453 A CN 116893453A
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- film layer
- optical element
- refractive index
- microstructure
- interference
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- 230000003287 optical effect Effects 0.000 title claims abstract description 115
- 239000002245 particle Substances 0.000 claims description 51
- 239000002105 nanoparticle Substances 0.000 claims description 31
- 230000001603 reducing effect Effects 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 230000007423 decrease Effects 0.000 description 8
- 238000003384 imaging method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000011800 void material Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000011859 microparticle Substances 0.000 description 3
- 239000005083 Zinc sulfide Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 description 2
- PFNQVRZLDWYSCW-UHFFFAOYSA-N (fluoren-9-ylideneamino) n-naphthalen-1-ylcarbamate Chemical compound C12=CC=CC=C2C2=CC=CC=C2C1=NOC(=O)NC1=CC=CC2=CC=CC=C12 PFNQVRZLDWYSCW-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 239000006117 anti-reflective coating Substances 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000006059 cover glass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical group 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- UGFMBZYKVQSQFX-UHFFFAOYSA-N para-methoxy-n-methylamphetamine Chemical compound CNC(C)CC1=CC=C(OC)C=C1 UGFMBZYKVQSQFX-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/118—Anti-reflection coatings having sub-optical wavelength surface structures designed to provide an enhanced transmittance, e.g. moth-eye structures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laminated Bodies (AREA)
Abstract
An optical assembly and an electronic device are disclosed, the disclosed optical assembly comprising an optical element (100) and a particulate film layer (210) disposed on the optical element (100), the particulate film layer (210) having a refractive index between that of air and that of the optical element (100) and tapering in a direction away from the optical element (100).
Description
Technical Field
The present application relates to the field of optical assemblies, and in particular, to an optical assembly and an electronic device.
Background
An antireflection film (Anti-Reflective coating, AR) is a surface optical plating layer, typically provided on the surface of an optical element, that increases the transmittance of light at the surface of the optical element by reducing the reflected light. In the related art, an antireflection film mainly adopts an interference film structure, and the optical thickness of the interference film is set to be one quarter of a certain wavelength of light, so that the optical path difference of two adjacent light beams is pi, and the reflected light of the wavelength on the optical surface is reduced by superposition. Since the arrangement of one interference film can only realize low reflection of a single wavelength, the spectrum consistency is poor, and in order to improve the anti-reflection performance (i.e. the performance of reducing reflection) of the interference film, lower reflectivity can be realized by stacking multiple layers of media. However, when the incident angle of the light beam is different from the ideal angle of the film design, the optical thickness will change, resulting in shift of the low reflection band, and thus the antireflection effect is poor.
Disclosure of Invention
The application discloses an optical component and electronic equipment, which are used for solving the problem that the reflection reducing effect is poor when the incidence angle of light is different from the ideal angle of film design when the light reflection is reduced by arranging a plurality of layers of interference films in the optical component in the related art.
In order to solve the technical problems, the application is realized as follows:
in a first aspect, the present disclosure is directed to an optical assembly comprising an optical element and a particulate film disposed on the optical element, the particulate film having a refractive index between that of air and that of the optical element and gradually decreasing in a direction away from the optical element.
In a second aspect, the application also discloses an electronic device, which comprises the optical component of the first aspect.
The technical scheme adopted by the application can achieve the following technical effects:
according to the optical component disclosed by the embodiment of the application, the particle film layer is arranged on the optical element, the refractive index of the particle film layer is between the refractive index of air and the refractive index of the optical element and gradually decreases along the direction away from the optical element, so that the particle film layer can reduce the reflection of light rays in a wider wavelength range, namely the broadband antireflection property is realized, the Fresnel reflection loss phenomenon caused by mismatching of the refractive indexes can be relieved, and the refractive index of the particle film layer is gradually changed, so that the influence of the incident angle of the light rays on the light ray reflection reduction capability of the particle film layer is small, and the problem that the antireflection effect is poor due to the fact that the difference between the incident angle of the light rays and the ideal angle of the film layer design exists when the light ray reflection is reduced by adopting a multilayer interference film mode in the optical element in the related art can be solved.
Drawings
FIG. 1 is a schematic diagram of a first optical component according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a second optical component according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a third optical component according to an embodiment of the present application.
Reference numerals illustrate:
100-optical element,
210-microparticle layer, 211-microstructure unit, 212-nanoparticle,
220-interference film layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The technical scheme disclosed by each embodiment of the application is described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 2, an optical assembly is disclosed in the embodiment of the present application, and the disclosed optical assembly includes an optical element 100 and a particle film layer 210 disposed on the optical element 100. The particle film layer 210 may be formed by spraying or spin coating, but may be formed by other methods, and the embodiment of the present application is not limited thereto. The optical element 100 may be a lens, an IR sheet (IR-CUT), a Cover glass, or the like, and embodiments of the present application are not limited to a specific type of optical element 100.
The refractive index of the particle film 210 is between the refractive index of air and the refractive index of the optical element 100, and gradually decreases in a direction away from the optical element 100.
It should be noted that, the light is projected onto the optical element 100 from the side where the optical element 100 is located, for example, the light a in fig. 1 represents the light projected onto the optical element 100, and part of the light in the light a may directly pass through the optical element 100 and the particle film layer 210 to be used for imaging, for example, the light b in fig. 1 represents the light directly passing through the optical element 100 and the particle film layer 210 to be used for imaging; part of the light is reflected or scattered at the optical element 100, or at the particle film layer 210, as light c in fig. 1 represents light scattered at the particle film layer 210.
According to the optical component disclosed by the embodiment of the application, the particle film layer 210 is arranged on the optical element 100, the refractive index of the particle film layer 210 is between the refractive index of air and the refractive index of the optical element 100, and gradually decreases along the direction away from the optical element 100, so that the particle film layer 210 can reduce the reflection of light rays in a wider wavelength range, namely realize the characteristic of broadband antireflection, thereby relieving the Fresnel reflection loss caused by mismatching of the refractive indexes, and the refractive index of the particle film layer 210 is gradually changed, so that the influence of the incident angle of the light rays on the light ray reflection reduction capability of the particle film layer 210 is small, and the problem that the antireflection effect is poor easily caused when the light rays are reflected by adopting a multilayer interference film mode for reducing the light rays in the optical element in the related technology due to the difference between the incident angle of the light rays and the ideal angle of the film layer design is solved.
In an alternative embodiment, the particle film layer 210 may include a plurality of microstructure elements 211, wherein a first end of the microstructure elements 211 is connected to the optical element 100, a second end of the microstructure elements 211 extends in a direction away from the optical element 100, and a gap is formed between any two adjacent microstructure elements 211, and a width of the gap gradually increases in a direction from the first end of the microstructure elements 211 to the second end of the microstructure elements 211. It should be noted that, the width direction of the gap is perpendicular to the direction from the first end of the microstructure unit 211 to the second end of the microstructure unit 211, and the width direction is perpendicular to the direction indicated by the light ray a in fig. 1.
It should be noted that, the width of the gap gradually increases in the direction from the first end of the microstructure unit 211 to the second end of the microstructure unit 211, that is, the width of the microstructure unit 211 gradually decreases in the direction from the first end of the microstructure unit 211 to the second end of the microstructure unit 211, and the microstructure unit 211 may have an inverted triangle structure. Since the width of the void on the side of the first end of the microstructure element 211 is smaller, the void on the side of the first end of the microstructure element 211 accommodates less air, and the void on the side of the second end of the microstructure element 211 is larger, the void on the side of the second end of the microstructure element 211 accommodates more air, and since the refractive index of the microstructure element 211 is larger than that of air, the microstructure element 211 and the air in the void form a structure in which the equivalent refractive index gradually decreases in the direction from the first end of the microstructure element 211 to the second end of the microstructure element 211.
The optical component disclosed in the embodiment of the application is configured by arranging the particle film layer 210 to include a plurality of microstructure units 211, so that the first ends of the microstructure units 211 are connected with the optical element 100, the second ends of the microstructure units 211 extend in a direction away from the optical element 100, and the width of a gap between any two adjacent microstructure units 211 gradually increases in a direction from the first ends of the microstructure units 211 to the second ends of the microstructure units 211, so that the microstructure units 211 and the air in the gap can jointly form a structure with gradually reduced equivalent refractive index in a direction from the first ends of the microstructure units 211 to the second ends of the microstructure units 211, thereby realizing that the refractive index of the particle film layer 210 gradually decreases in a direction away from the optical element 100.
Of course, in other embodiments, the particle film layer 210 may be formed by sequentially stacking multiple layers of materials with different refractive indexes, and the refractive index of the particle film layer 210 may be gradually reduced by arranging the multiple layers of materials with different refractive indexes from the larger refractive index to the smaller refractive index. Of course, the structure for realizing the gradual decrease of the refractive index of the particle film layer 210 may be other structures, and the embodiment of the present application does not limit the structure of the particle film layer 210.
In an alternative embodiment, the plurality of microstructure elements 211 may form a microstructured layer, which may be aluminum oxide (Al 2 O 3 ) The layer, due to the chemical instability of the alumina film in the high temperature water bath, can be formed after treatmentThe random microstructure unit 211 is formed (the size is about 50nm-150nm, and the size can refer to the length, the width or the height of the microstructure unit 211), so that the particle film layer 210 with graded refractive index is realized, the broadband anti-reflection characteristic is obtained, and the microstructure layer prepared by the alumina film has the characteristics of simple preparation process, low cost and suitability for large-size elements.
Of course, in other embodiments, the microstructure layer may be formed by vapor deposition of metal oxides such as silicon oxide, zirconium oxide, etc. on the surface of the optical element 100, and the specific materials of the microstructure layer are not limited in the embodiments of the present application.
Since the gaps exist between the plurality of microstructure units 211, the particle film layer 210 is poor in rigidity and durability, and thus relatively poor in strength after being combined with the optical element 100. In order to improve the rigidity and durability of the particle film layer 210, the particle film layer 210 may optionally further include nanoparticles 212, and the nanoparticles 212 may be filled in the gaps formed between the plurality of microstructure units 211. It should be noted that, the nanoparticles 212 occupy less space in the voids, and the filling amount of the nanoparticles 212 may be adjusted so that the filled nanoparticles 212 do not affect or have less effect on the characteristic that the equivalent refractive index of the microstructure units 211 and the air in the voids gradually decreases.
According to the optical component disclosed by the embodiment of the application, the nano particles 212 are filled among the microstructure units 211, so that the nano particles 212 can effectively fill gaps among the microstructure units 211, and the nano particles 212 interact with the microstructure units 211, so that the overall structural rigidity and durability of the particle film 210 formed by at least the microstructure units 211 and the nano particles 212 are high, and the strength of the particle film 210 after being combined with the optical element 100 can be improved.
Specifically, the nanoparticles 212 may be a low refractive index material such as silica, titania, PMMA (organic glass) plastic, and the diameter of the nanoparticles 212 may be between 30nm and 100 nm.
The size of the microstructure element 211 is typically between 50nm and 150nm, and the visible light wavelength is between 390nm and 760nm, and since the size of the microstructure element 211 is small relative to the wavelength of visible light, in principle, the surface formed at the second end of the microstructure element 211 inevitably causes a certain degree of scattering of light, and the scattered light easily interferes with imaging, so that the imaging of the optical component is easily caused to be fogged. To alleviate the occurrence of the optical assembly during imaging, optionally, on the side of the microparticle film layer 210 facing away from the optical element 100, the distance between the nanoparticles 212 and the second ends of the adjacent microstructure elements 211 is smaller than a predetermined distance, so that the nanoparticles 212 may form an approximately planar structure with the second ends of the plurality of microstructure elements 211. Specifically, the preset distance may be between 10nm and 15nm, and of course, the preset distance may also be in other ranges, for example, the preset distance may be between 10nm and 20nm,15nm and 25nm, and so on.
In the optical component disclosed in the embodiment of the present application, the distance between the nanoparticle 212 and the second ends of the adjacent microstructure units 211 is smaller than the preset distance on the side of the particle film 210 facing away from the optical element 100, so that the nanoparticle 212 and the second ends of the plurality of microstructure units 211 form an approximately planar structure, thereby effectively alleviating the scattering of light at the second ends of the plurality of microstructure units 211, further alleviating the occurrence of the optical component during imaging, and improving the imaging quality of the optical component.
In an alternative embodiment, the optical assembly may further include an interference film 220, where the interference film 220 may be disposed between the optical element 100 and the particle film 210, and where the particle film 210 may be disposed on the optical element 100 through the interference film 220. The interference film 220 may be a film for reducing light reflection. For example, the optical thickness of the interference film layer 220 may be one-fourth of the wavelength of the corresponding visible light, such that the interference film layer 220 may reduce the reflectivity of the corresponding wavelength.
The optical component disclosed in the embodiment of the present application may further improve the ability of the optical component to reduce light reflection by providing the interference film 220 between the optical element 100 and the particle film 210.
Further, the number of the interference film layers 220 may be plural, and the plural interference film layers 220 may be sequentially stacked on the optical element 100. The optical component disclosed by the embodiment of the application can further improve the capability of antireflection of light rays in a wider wavelength range by arranging the plurality of interference film layers 220 and stacking the plurality of interference film layers 220.
Alternatively, the refractive index of the interference film 220 that is connected to the particle film 210 of the interference films 220 may be between the refractive index of air and the refractive index of the optical element 100, and the refractive index of the particle film 210 may be between the refractive index of air and the refractive index of the interference film 220 that is connected to the particle film 210 of the interference films 220. Specifically, at least some of the interference film layers 220 have different refractive indexes, and for the interference film layers 220 made of different materials, the stacking manners of the interference film layers 220 are different, and the stacking manners of the interference film layers 220 can be specifically designed according to the materials, thicknesses, and the like of the interference film layers 220. The interference film layer 220 may be magnesium fluoride, titanium dioxide, silicon dioxide, aluminum oxide, zirconium dioxide, znSe (zinc selenide), znS (zinc sulfide) ceramic infrared light reflection reducing film, vinyl silsesquioxane hybrid film, etc., and the embodiment of the application is not limited to the specific material of the interference film layer 220.
Specifically, since the refractive index of air is denoted as n, the refractive index of the optical element 100 is denoted as m, and the refractive index of the interference film 220 in contact with the fine particle film 210 is denoted as r, the refractive index r of the interference film 220 in contact with the fine particle film 210 satisfies the following condition: n < r < m, the refractive index of the particle film 210 is denoted as s, and the refractive index of the particle film 210 is between the refractive index of air and the refractive index of the interference film 220 that is in contact with the particle film 210, i.e., n < s < r.
In the optical component disclosed in the embodiment of the present application, the refractive index of the particle film layer 210 is set to be between the refractive index of air and the refractive index of the interference film layer 220 connected to the particle film layer 210 in the plurality of interference film layers 220, so that the integral structure formed by the interference film layer 220 connected to the particle film layer 210 and the particle film layer 210 can further form a structure with reduced refractive index, thereby further improving the antireflection capability of the optical component.
Referring to fig. 3, in one implementation, the optical component may include an interference film layer 220, the interference film layer 220 may be a film layer for reducing light reflection, the interference film layer 220 may be disposed between the optical element 100 and the particle film layer 210, the particle film layer 210 includes nanoparticles 212, the nanoparticles 212 may form a nanoparticle layer on a side of the interference film layer 220 facing away from the optical element 100, where a refractive index of the formed nanoparticle layer is between a refractive index of air and a refractive index of the interference film layer 220, and an integral body formed by the interference film layer 220 and the nanoparticle layer forms a structure with a refractive index gradually decreasing in a direction facing away from the optical element 100.
According to the optical component disclosed by the embodiment of the application, the interference film layer 220 is arranged on the optical element 100, so that the interference film layer 220 can reduce the reflection of light to a certain extent, and the nanoparticle layer is formed on one side of the interference film layer 220, which is far away from the optical element 100, and the refractive index of the formed nanoparticle layer is between that of air and that of the interference film layer 220, so that the whole formed by the interference film layer 220 and the nanoparticle layer can form a structure with gradually reduced refractive index in the direction, which is far away from the optical element 100, and the effect of reducing the reflection of light of the optical component can be further improved. In this case, the microparticle film layer 210 may optionally include only nanoparticles 212.
Further, the number of interference layers 220 may be plural, the plurality of interference layers 220 may be sequentially stacked on the optical element 100, and the refractive index of the nanoparticle layer may be between the refractive index of air and the refractive index of the interference layer 220 connected to the nanoparticle layer 212 among the plurality of interference layers 220.
According to the optical component disclosed by the embodiment of the application, the interference film layers 220 are arranged in a plurality, and the anti-reflection capability of light rays in a wider wavelength range can be further improved through stacking the interference film layers 220.
The embodiment of the application also discloses an electronic device, which comprises the optical component disclosed by the embodiment. The electronic equipment disclosed by the embodiment of the application can solve the problem that when the optical element in the related technology adopts a multilayer interference film to reduce light reflection, the reflection reducing effect is poor due to the fact that the incidence angle of the light is different from the ideal angle of the film design.
The electronic equipment disclosed by the embodiment of the application can be electronic equipment such as a mobile phone, a tablet, a camera and the like, and the embodiment of the application does not limit the types of the electronic equipment.
The foregoing embodiments of the present application mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in view of brevity of line text, no further description is provided herein.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
Claims (10)
1. An optical assembly comprising an optical element (100) and a particulate film layer (210) disposed on the optical element (100), the particulate film layer (210) having a refractive index between that of air and that of the optical element (100) and tapering in a direction away from the optical element (100).
2. The optical assembly according to claim 1, wherein the particulate film layer (210) comprises a plurality of microstructure elements (211), a first end of the microstructure elements (211) being connected to the optical element (100), a second end of the microstructure elements (211) extending in a direction away from the optical element (100), a gap being provided between any adjacent two of the microstructure elements (211), the width of the gap increasing in a direction from the first end of the microstructure elements (211) to the second end of the microstructure elements (211).
3. The optical assembly according to claim 2, wherein the plurality of microstructure units (211) forms a microstructure layer, the microstructure layer being an alumina layer.
4. The optical assembly of claim 2, wherein the particulate film layer (210) further comprises nanoparticles (212), the nanoparticles (212) filling in the voids formed between the plurality of microstructure elements (211).
5. The optical assembly according to claim 4, characterized in that the distance between the nanoparticle (212) and the second end of the adjacent microstructure element (211) is smaller than a preset distance at the side of the particle film layer (210) facing away from the optical element (100).
6. The optical assembly of claim 4, wherein the nanoparticles (212) have a diameter between 30nm and 100 nm.
7. The optical assembly according to any one of claims 1 to 6, further comprising an interference film layer (220), the interference film layer (220) being provided between the optical element (100) and the particle film layer (210), wherein the interference film layer (220) is a film layer for reducing light reflection.
8. The optical assembly of claim 7, wherein the interference film layer (220) is a plurality, and wherein the plurality of interference film layers (220) are sequentially stacked on the optical element (100).
9. The optical assembly of claim 8, wherein a refractive index of the interference film (220) of the plurality of interference films (220) that interfaces with the particle film (210) is between a refractive index of air and a refractive index of the optical element (100), the refractive index of the particle film (210) being between a refractive index of air and a refractive index of the interference film (220) of the plurality of interference films (220) that interfaces with the particle film (210).
10. An electronic device comprising an optical assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310838145.8A CN116893453A (en) | 2023-07-07 | 2023-07-07 | Optical module and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310838145.8A CN116893453A (en) | 2023-07-07 | 2023-07-07 | Optical module and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116893453A true CN116893453A (en) | 2023-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310838145.8A Pending CN116893453A (en) | 2023-07-07 | 2023-07-07 | Optical module and electronic device |
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| Country | Link |
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| CN (1) | CN116893453A (en) |
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- 2023-07-07 CN CN202310838145.8A patent/CN116893453A/en active Pending
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