CN116893453A - Optical module and electronic device - Google Patents
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
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- 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
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Abstract
Description
技术领域Technical field
本发明涉及光学组件技术领域，尤其涉及一种光学组件和电子设备。The present invention relates to the technical field of optical components, and in particular, to an optical component and an electronic device.
背景技术Background technique
增透膜(Anti-Reflective coating，AR)是一种表面光学镀层，通常设于光学元件的表面，它通过减少反射光来增加光在光学元件的表面的透过率。在相关技术中，增透膜主要采用干涉膜结构，将干涉膜的光学厚度设置为某一光波长的四分之一，从而使得相邻的两束光的光程差为π,通过叠加使得光学表面对该波长的反射光减少。由于设置一层干涉膜只能实现单一波长的低反射，光谱一致性差，为了改善干涉膜的减反性能(即减少反射的性能)，可以通过堆叠多层介质实现更低的反射率。但当光线入射角与膜层设计的理想角度存在差异时，光学厚度将产生变化，导致低反射的波段发生偏移，从而使得减反效果较差。Anti-Reflective coating (AR) is a surface optical coating that is usually provided on the surface of optical components. It increases the transmittance of light on the surface of optical components by reducing reflected light. In related technologies, the anti-reflection coating mainly adopts an interference film structure. The optical thickness of the interference film is set to one quarter of a certain light wavelength, so that the optical path difference between two adjacent beams of light is π. Through superposition, The optical surface reflects less light at that wavelength. Since setting a layer of interference film can only achieve low reflection at a single wavelength, the spectral consistency is poor. In order to improve the anti-reflection performance (that is, the performance of reducing reflection) of the interference film, lower reflectivity can be achieved by stacking multiple layers of media. However, when the incident angle of light is different from the ideal angle of the film layer design, the optical thickness will change, causing the low-reflection band to shift, resulting in poor anti-reflection effect.
发明内容Contents of the invention
本发明公开一种光学组件和电子设备，以解决相关技术中的光学组件通过设置多层干涉膜的方式减少光线反射时，光线的入射角与膜层设计的理想角度存在差异时容易导致减反效果较差的问题。The present invention discloses an optical component and an electronic device to solve the problem that when the optical component in the related art reduces the reflection of light by setting up a multi-layer interference film, the incident angle of the light is different from the ideal angle designed by the film layer, which can easily lead to anti-reflection. less effective problem.
为了解决上述技术问题，本发明是这样实现的：In order to solve the above technical problems, the present invention is implemented as follows:
第一方面，本申请公开一种光学组件，包括光学元件和设置于所述光学元件上的微粒膜层，所述微粒膜层的折射率介于空气的折射率与所述光学元件的折射率之间，且在沿背离所述光学元件的方向上逐渐减小。In a first aspect, the present application discloses an optical component, including an optical element and a particle film layer disposed 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 in the direction away from the optical element.
第二方面，本申请还公开一种电子设备，所公开的电子设备包括第一方面所述的光学组件。In a second aspect, this application also discloses an electronic device. The disclosed electronic device includes the optical component described in the first aspect.
本发明采用的技术方案能够达到以下技术效果：The technical solution adopted by the present invention can achieve the following technical effects:
本申请实施例公开的光学组件通过在光学元件上设置微粒膜层，并使得微粒膜层的折射率介于空气的折射率与光学元件的折射率之间，且在沿背离光学元件的方向上逐渐减小，从而使得微粒膜层可以减少较宽波长范围内的光线的反射，即实现宽带减反的特性，从而可以缓解由于折射率不匹配所造成的菲涅尔反射损失现象，由于微粒膜层的折射率是渐变的，因此，光线的入射角度对微粒膜层的减少光线反射的能力影响较小，从而可以解决相关技术中的光学元件采用多层干涉膜的方式减少光线反射时，由于光线的入射角与膜层设计的理想角度存在差异时容易导致减反效果较差的问题。The optical components disclosed in the embodiments of the present application are provided with a particle film layer on the optical element, and the refractive index of the particle film layer is between the refractive index of air and the refractive index of the optical element, and in the direction away from the optical element. Gradually decrease, so that the particulate film layer can reduce the reflection of light in a wide wavelength range, that is, to achieve broadband anti-reflection characteristics, which can alleviate the Fresnel reflection loss caused by refractive index mismatch. Due to the particulate film The refractive index of the layer is gradient. Therefore, the incident angle of light has little impact on the ability of the particle coating layer to reduce light reflection, which can solve the problem when optical elements in related technologies use multi-layer interference films to reduce light reflection. When the incident angle of light is different from the ideal angle designed by the film layer, it is easy to cause the problem of poor anti-reflection effect.
附图说明Description of the drawings
图1为本发明实施例公开的第一种光学组件的结构示意图；Figure 1 is a schematic structural diagram of the first optical component disclosed in an embodiment of the present invention;
图2为本发明实施例公开的第二种光学组件的结构示意图；Figure 2 is a schematic structural diagram of a second optical component disclosed in an embodiment of the present invention;
图3为本发明实施例公开的第三种光学组件的结构示意图。FIG. 3 is a schematic structural diagram of a third optical component disclosed in an embodiment of the present invention.
附图标记说明：Explanation of reference symbols:
100-光学元件、100-Optical components,
210-微粒膜层、211-微结构单元、212-纳米颗粒、210-particle film layer, 211-microstructural unit, 212-nanoparticles,
220-干涉膜层。220-Interference coating layer.
具体实施方式Detailed ways
为使本发明的目的、技术方案和优点更加清楚，下面将结合本发明具体实施例及相应的附图对本发明技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.
以下结合附图，详细说明本发明各个实施例公开的技术方案。The technical solutions disclosed in various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
请参考图1至图2，本发明实施例公开一种光学组件，所公开的光学组件包括光学元件100和设置于光学元件100上的微粒膜层210。微粒膜层210可以是通过喷涂或旋涂的方式形成，当然还可以通过其它方式形成，本申请实施例不作限制。光学元件100可以是镜片、IR片(IR-CUT)，Cover glass(防护玻璃片)等元件，本申请实施例不限制光学元件100的具体种类。Please refer to FIGS. 1 to 2 . An embodiment of the present invention discloses an optical component. The disclosed optical component includes an optical element 100 and a particle film layer 210 disposed on the optical element 100 . The particle film layer 210 can be formed by spraying or spin coating, and of course can also be formed by other methods, which are not limited by the embodiments of this application. The optical element 100 can be a lens, an IR cutter (IR-CUT), a cover glass (protective glass piece), etc. The embodiment of the present application does not limit the specific type of the optical element 100 .
微粒膜层210的折射率介于空气的折射率与光学元件100的折射率之间，且沿背离光学元件100的方向上逐渐减小。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 in the direction away from the optical element 100 .
需要说明的是，光线从光学元件100所在的一侧投射至光学元件100，如图1中的光线a表示投射至光学元件100上的光线，光线a中的部分光线可以直接穿过光学元件100和微粒膜层210射出，从而用于成像，如图1中的光线b表示直接穿过光学元件100和微粒膜层210射出的光线；部分光线在光学元件100、或微粒膜层210处被反射或散射，如图1中的光线c表示在微粒膜层210处散射的光线。It should be noted that light is projected to the optical element 100 from the side where the optical element 100 is located. Light a in Figure 1 represents the light projected onto the optical element 100. Part of the light in light a can directly pass through the optical element 100. and emitted from the particle film layer 210 for imaging. Light b in Figure 1 represents the light emitted directly through the optical element 100 and the particle film layer 210; part of the light is reflected at the optical element 100 or the particle film layer 210 Or scattering, the light c in Figure 1 represents the light scattered at the particle film layer 210.
本申请实施例公开的光学组件通过在光学元件100上设置微粒膜层210，并使得微粒膜层210的折射率介于空气的折射率与光学元件100的折射率之间，且在沿背离光学元件100的方向上逐渐减小，从而使得微粒膜层210可以减少较宽波长范围内的光线的反射，即实现宽带减反的特性，从而可以缓解除由于折射率不匹配所造成的菲涅尔反射损失，由于微粒膜层210的折射率是渐变的，因此，光线的入射角度对微粒膜层210的减少光线反射的能力影响较小，从而可以解决相关技术中的光学元件采用多层干涉膜的方式减少光线反射时，由于光线的入射角与膜层设计的理想角度存在差异时容易导致减反效果较差的问题。The optical component disclosed in the embodiment of the present application disposes the particle film layer 210 on the optical element 100, and makes the refractive index of the particle film layer 210 between the refractive index of air and the refractive index of the optical element 100, and along the direction away from the optical element 100, the refractive index of the particle film layer 210 is between The element 100 gradually decreases in direction, so that the particle film layer 210 can reduce the reflection of light in a wider wavelength range, that is, achieve broadband anti-reflection characteristics, thereby mitigating Fresnel reflection caused by refractive index mismatch. Reflection loss, since the refractive index of the particulate film layer 210 is gradient, the incident angle of light has a small impact on the ability of the particulate film layer 210 to reduce light reflection, which can solve the problem of using multi-layer interference films for optical elements in related technologies. When reducing light reflection, the difference between the incident angle of light and the ideal angle designed by the film layer can easily lead to poor anti-reflection effects.
一种可选的实施例，微粒膜层210可以包括多个微结构单元211，微结构单元211的第一端与光学元件100连接，微结构单元211的第二端沿背离光学元件100的方向延伸，任意相邻的两个微结构单元211之间具有空隙，空隙的宽度在微结构单元211的第一端至微结构单元211的第二端的方向上逐渐增大。需要说明的是，空隙的宽度方向是与微结构单元211的第一端至微结构单元211的第二端的方向相垂直，宽度方向与图1中光线a所指的方向相垂直。In an optional embodiment, the particle film layer 210 may include a plurality of microstructural units 211, the first end of the microstructural unit 211 is connected to the optical element 100, and the second end of the microstructural unit 211 is in a direction away from the optical element 100. Extending, there is a gap between any two adjacent microstructure units 211 , and 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 . 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 pointed by light a in FIG. 1 .
需要说明的是，在微结构单元211的第一端至微结构单元211的第二端的方向上空隙的宽度逐渐增大，即在微结构单元211的第一端至微结构单元211的第二端的方向上，微结构单元211的宽度逐渐减小，微结构单元211可以呈倒三角形结构。由于在微结构单元211的第一端的一侧空隙的宽度较小，那么在微结构单元211的第一端的一侧的空隙容纳的空气较少，在微结构单元211的第二端的一侧空隙的宽度较大，那么在微结构单元211的第二端的一侧的空隙容纳的空气较多，由于微结构单元211的折射率大于空气的折射率，因此，在微结构单元211的第一端至微结构单元211的第二端的方向上，微结构单元211与空隙内的空气共同形成等效折射率逐渐降低的结构。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, from the first end of the microstructure unit 211 to the second end of the microstructure unit 211 , the width of the gap gradually increases. In the direction of the end, the width of the microstructure unit 211 gradually decreases, and the microstructure unit 211 may have an inverted triangle structure. Since the width of the gap on one side of the first end of the microstructure unit 211 is smaller, the gap on one side of the first end of the microstructure unit 211 holds less air, and the gap on one side of the second end of the microstructure unit 211 holds less air. The width of the side gap is larger, so the gap on one side of the second end of the microstructure unit 211 holds more air. Since the refractive index of the microstructure unit 211 is greater than the refractive index of air, therefore, at the second end of the microstructure unit 211 In the direction from one end to the second end of the microstructure unit 211, the microstructure unit 211 and the air in the gap together form a structure in which the equivalent refractive index gradually decreases.
本申请实施例公开的光学组件通过将微粒膜层210设置为包括多个微结构单元211的结构，使得微结构单元211的第一端与光学元件100连接，微结构单元211的第二端沿背离光学元件100的方向延伸，且任意相邻的两个微结构单元211之间的空隙的宽度在微结构单元211的第一端至微结构单元211的第二端的方向上逐渐增大，从而在微结构单元211的第一端至微结构单元211的第二端的方向上，微结构单元211与空隙内的空气可以共同形成等效折射率逐渐降低的结构，从而实现微粒膜层210的折射率在背离光学元件100的方向上逐渐减小。The optical component disclosed in the embodiment of the present application sets the particle film layer 210 into a structure including a plurality of microstructure units 211, so that the first end of the microstructure unit 211 is connected to the optical element 100, and the second end of the microstructure unit 211 is connected along the Extends in the direction away from the optical element 100 , and the width of the gap between any two adjacent microstructure units 211 gradually increases in the direction from the first end of the microstructure unit 211 to the second end of the microstructure unit 211 , so that In the direction from the first end of the microstructure unit 211 to the second end of the microstructure unit 211 , the microstructure unit 211 and the air in the gap can jointly form a structure in which the equivalent refractive index gradually decreases, thereby achieving refraction of the particle film layer 210 The rate gradually decreases in the direction away from the optical element 100 .
当然，在其它实施例中，微粒膜层210可以由多层不同折射率的材料依次叠置形成，通过对多层不同折射率的材料由折射率较大至较小排布，从而可以实现微粒膜层210的折射率逐渐减小。当然，实现微粒膜层210的折射率逐渐减小的结构还可以是其它结构，本申请实施例对微粒膜层210的结构不做限制。Of course, in other embodiments, the microparticle film layer 210 can be formed by stacking multiple layers of materials with different refractive indexes in sequence. By arranging the multiple layers of materials with different refractive indexes from larger to smaller refractive indexes, microparticles can be realized. The refractive index of the film layer 210 gradually decreases. Of course, the structure that realizes the gradual reduction of the refractive index of the particulate film layer 210 can also be other structures. The embodiment of the present application does not limit the structure of the particulate film layer 210 .
一种可选的实施例中，多个微结构单元211可以形成微结构层，微结构层可以为氧化铝(Al2O3)层，由于氧化铝薄膜在高温水浴中具有化学不稳定性，通过处理后能够形成随机微结构单元211(尺寸约为50nm-150nm，尺寸可以指微结构单元211的长度、宽度或高度)，从而实现渐变折射率的微粒膜层210，从而获得宽带减反的特性，而且，通过氧化铝薄膜制备微结构层具有制备工艺简单，成本较低，且适合大尺寸元件的特性。In an optional embodiment, multiple microstructure units 211 can form a microstructure layer, and the microstructure layer can be an aluminum oxide (Al 2 O 3 ) layer. Since the aluminum oxide film is chemically unstable in a high-temperature water bath, After processing, random microstructural units 211 can be formed (the size is about 50nm-150nm, the size can refer to the length, width or height of the microstructural unit 211), thereby achieving a gradient refractive index particle film layer 210, thereby obtaining a broadband anti-reflection Moreover, the preparation of microstructure layers through aluminum oxide films has the characteristics of simple preparation process, low cost, and suitable for large-size components.
当然，在其它一些实施例中，微结构层可以是通过氧化硅、氧化锆等金属氧化物蒸镀于光学元件100的表面而成，本申请实施例不限制微结构层的具体材料。Of course, in other embodiments, the microstructure layer may be formed by evaporation of metal oxides such as silicon oxide and zirconium oxide on the surface of the optical element 100. The embodiments of the present application do not limit the specific material of the microstructure layer.
由于多个微结构单元211之间存在空隙，从而微粒膜层210的刚性、耐久性较差，从而与光学元件100结合后的强度相对较差。为了提高微粒膜层210的刚性、耐久性，可选的，微粒膜层210还可以包括纳米颗粒212，纳米颗粒212可以填充于多个微结构单元211之间形成的空隙中。需要说明的是，纳米颗粒212只占用空隙的较少空间，可以通过调节纳米颗粒212的填充量，来使得填充的纳米颗粒212对多个微结构单元211与空隙内的空气共同形成的等效折射率逐渐降低的特性不影响或影响较小。Due to the gaps between the plurality of microstructure units 211 , the particle film layer 210 has poor rigidity and durability, and thus the strength after being combined with the optical element 100 is relatively poor. In order to improve the rigidity and durability of the particulate film layer 210 , optionally, the particulate film layer 210 may also include nanoparticles 212 , and the nanoparticles 212 may be filled in the gaps formed between the plurality of microstructural units 211 . It should be noted that the nanoparticles 212 only occupy less space in the gap, and the filling amount of the nanoparticles 212 can be adjusted to make the filled nanoparticles 212 have an equivalent effect on the multiple microstructural units 211 and the air in the gap. The characteristic of gradually decreasing refractive index has no or little effect.
本申请实施例公开的光学组件通过在多个微结构单元211之间填充纳米颗粒212，纳米颗粒212可有效填充微结构单元211之间的空隙，使得纳米颗粒212与多个微结构单元211之间相互作用，从而可以使得至少由多个微结构单元211与纳米颗粒212形成的微粒膜层210整体结构刚性及耐久性较高，从而可以提高微粒膜层210与光学元件100结合后的强度。The optical component disclosed in the embodiment of the present application fills nanoparticles 212 between multiple microstructural units 211 , and the nanoparticles 212 can effectively fill the gaps between the microstructural units 211 , so that the nanoparticles 212 and the multiple microstructural units 211 The interaction between the microstructure units 211 and the nanoparticles 212 can make the overall structural rigidity and durability of the particle film layer 210 formed by at least a plurality of microstructural units 211 and nanoparticles 212 higher, thereby improving the strength of the combination of the particle film layer 210 and the optical element 100 .
具体的，纳米颗粒212可以是二氧化硅、二氧化钛、PMMA(有机玻璃)塑料等低折射率材料，纳米颗粒212的直径可以在30nm-100nm之间。Specifically, the nanoparticles 212 can be low refractive index materials such as silicon dioxide, titanium dioxide, PMMA (organic glass) plastic, etc., and the diameter of the nanoparticles 212 can be between 30nm and 100nm.
微结构单元211的尺寸通常为50nm-150nm之间，可见光波段在390nm-760nm之间，由于微结构单元211的尺寸相对于可见光的波长较小，原理上微结构单元211的第二端形成的表面不可避免地导致光线发生一定程度的散射，散射光线容易对成像造成干扰，从而容易导致光学组件的成像产生发蒙的情况。为了缓解光学组件在成像时的发蒙情况，可选的，在微粒膜层210的背离光学元件100的一侧，纳米颗粒212与相邻的微结构单元211的第二端之间的距离小于预设距离，以使纳米颗粒212可以与多个微结构单元211的第二端形成近似平面结构。具体的，预设距离可以是10nm至15nm之间，当然，预设距离还可以是其它范围，例如预设距离可以是10nm至20nm，15nm至25nm等范围。The size of the microstructure unit 211 is usually between 50nm and 150nm, and the visible light band is between 390nm and 760nm. Since the size of the microstructure unit 211 is smaller relative to the wavelength of visible light, in principle, the second end of the microstructure unit 211 is formed The surface inevitably causes light to scatter to a certain extent. The scattered light can easily interfere with imaging, which can easily lead to blurry imaging of optical components. In order to alleviate the blurring of the optical component during imaging, optionally, on the side of the particle film layer 210 away from the optical element 100, the distance between the nanoparticles 212 and the second end of the adjacent microstructure unit 211 is less than a predetermined distance. The distance is set so that the nanoparticles 212 can form an approximately planar structure with the second ends of the plurality of microstructure units 211 . Specifically, the preset distance can be between 10nm and 15nm. Of course, the preset distance can also be in other ranges. For example, the preset distance can be in the range of 10nm to 20nm, 15nm to 25nm, etc.
本申请实施例公开的光学组件通过在微粒膜层210的背离光学元件100的一侧使得纳米颗粒212与相邻的微结构单元211的第二端之间的距离小于预设距离，以使纳米颗粒212与多个微结构单元211的第二端形成近似平面结构，从而可以有效缓解光线在多个微结构单元211的第二端的散射，进而可以缓解光学组件在成像时的发蒙情况，改善光学组件的成像品质。The optical assembly disclosed in the embodiment of the present application makes the distance between the nanoparticles 212 and the second end of the adjacent microstructure unit 211 less than a preset distance on the side of the particle film layer 210 away from the optical element 100, so that the nanometer The particles 212 and the second ends of the plurality of microstructure units 211 form an approximately planar structure, which can effectively alleviate the scattering of light at the second ends of the plurality of microstructure units 211, thereby alleviating the fogging of the optical components during imaging and improving optics. The imaging quality of the component.
一种可选的实施例，光学组件还可以包括干涉膜层220，干涉膜层220可以设于光学元件100与微粒膜层210之间，微粒膜层210可以通过干涉膜层220设于光学元件100上。其中，干涉膜层220可以为用于减少光线反射的膜层。例如，干涉膜层220的光学厚度可以是相应可见光的波长的四分之一，使得干涉膜层220可以减少相应波长的反射率。In an optional embodiment, the optical component may further include an interference film layer 220. The interference film layer 220 may be provided between the optical element 100 and the particle film layer 210. The particle film layer 210 may be provided on the optical element through the interference film layer 220. 100 on. The interference film layer 220 may be a film layer used to reduce light reflection. For example, the optical thickness of the interference film layer 220 may be one-quarter of the wavelength of the corresponding visible light, so that the interference film layer 220 may reduce the reflectivity of the corresponding wavelength.
本申请实施例公开的光学组件通过在光学元件100与微粒膜层210之间设置干涉膜层220，可以进一步改善光学组件减少光线反射的能力。The optical component disclosed in the embodiment of the present application can further improve the ability of the optical component to reduce light reflection by disposing the interference film layer 220 between the optical element 100 and the particle film layer 210 .
进一步的，干涉膜层220可以为多个，多个干涉膜层220可以依次叠置于光学元件100。本申请实施例公开的光学组件通过将干涉膜层220设置为多个，通过多个干涉膜层220的堆叠可以进一步提升对更宽波长范围内光线的减反射的能力。Furthermore, there may be a plurality of interference film layers 220 , and the plurality of interference film layers 220 may be stacked on the optical element 100 in sequence. The optical component disclosed in the embodiment of the present application can further improve the anti-reflection capability of light in a wider wavelength range by arranging multiple interference film layers 220 and stacking multiple interference film layers 220 .
可选的，多个干涉膜层220中的与微粒膜层210相接的干涉膜层220的折射率可以介于空气的折射率与光学元件100的折射率之间，微粒膜层210的折射率可以介于空气的折射率与多个干涉膜层220中的与微粒膜层210相接的干涉膜层220的折射率之间。具体的，多个干涉膜层220中的至少部分干涉膜层220的折射率不同，对于不同材质的干涉膜层220，其堆叠方式不相同，多个干涉膜层220的堆叠方式可以根据干涉膜层220的材料、厚度等具体设计。干涉膜层220可以为氟化镁、二氧化钛、二氧化硅、三氧化二铝、二氧化锆、ZnSe(硒化锌)、ZnS(硫化锌)陶瓷红外光红外增透膜、乙烯基倍半硅氧烷杂化膜等，本申请实施例不限制干涉膜层220的具体材料。Optionally, the refractive index of the interference film layer 220 in the plurality of interference film layers 220 that is connected to the particle film layer 210 can be between the refractive index of air and the refractive index of the optical element 100. The refractive index of the particle film layer 210 is The refractive index may be between the refractive index of air and the refractive index of the interference film layer 220 in contact with the particle film layer 210 among the plurality of interference film layers 220 . Specifically, at least some of the interference film layers 220 among the plurality of interference film layers 220 have different refractive indexes. For interference film layers 220 of different materials, their stacking methods are different. The stacking method of the multiple interference film layers 220 can be based on the interference film. The material and thickness of layer 220 are specifically designed. The interference film layer 220 can be magnesium fluoride, titanium dioxide, silicon dioxide, aluminum oxide, zirconium dioxide, ZnSe (zinc selenide), ZnS (zinc sulfide) ceramic infrared light infrared anti-reflection film, vinyl sesquioxide Oxygen hybrid film, etc., the embodiment of the present application does not limit the specific material of the interference film layer 220.
具体的，空气的折射率记为n，光学元件100的折射率记为m，与微粒膜层210相接的干涉膜层220的折射率记为r，由于空气的折射率是最小的，因此，与微粒膜层210相接的干涉膜层220的折射率r满足：n<r<m，微粒膜层210的折射率记为s，微粒膜层210的折射率介于空气的折射率和与微粒膜层210相接的干涉膜层220的折射率之间，即n<s<r。Specifically, 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 layer 220 connected to the particle film layer 210 is denoted as r. Since the refractive index of air is the smallest, therefore , the refractive index r of the interference film layer 220 connected to the particle film layer 210 satisfies: n<r<m, the refractive index of the particle film layer 210 is recorded as s, the refractive index of the particle film layer 210 is between the refractive index of air and The refractive index between the interference film layer 220 and the particle film layer 210 is between n<s<r.
本申请实施例公开的光学组件通过将微粒膜层210的折射率设置为介于空气的折射率与多个干涉膜层220中的与微粒膜层210相接的干涉膜层220的折射率之间，使得与微粒膜层210相接的干涉膜层220与微粒膜层210两者形成的整体结构可以进一步形成折射率减小的结构，从而可以进一步提升光学组件的减反能力。The optical component disclosed in the embodiment of the present application sets the refractive index of the particle film layer 210 to be between the refractive index of air and the refractive index of the interference film layer 220 in the plurality of interference film layers 220 that is connected to the particle film layer 210. time, so that the overall structure formed by the interference film layer 220 and the particle film layer 210 connected to the particle film layer 210 can further form a structure with a reduced refractive index, thereby further improving the anti-reflection capability of the optical component.
请参考图3，在一种可实现的方式中，光学组件可以包括干涉膜层220，干涉膜层220可以为用于减少光线反射的膜层，干涉膜层220可以设置于光学元件100与微粒膜层210之间，微粒膜层210包括纳米颗粒212，纳米颗粒212可以在干涉膜层220的背离光学元件100的一侧形成纳米颗粒层，其中，形成的纳米颗粒层的折射率介于空气的折射率与干涉膜层220的折射率之间，干涉膜层220与纳米颗粒层形成的整体在背离光学元件100的方向上形成折射率逐渐减小的结构。Please refer to FIG. 3 . In an implementable manner, the optical component may include an interference film layer 220 . The interference film layer 220 may be a film layer used to reduce light reflection. The interference film layer 220 may be disposed between the optical element 100 and the particles. Between the film layers 210, the particulate film layer 210 includes nanoparticles 212. The nanoparticles 212 can form a nanoparticle layer on the side of the interference film layer 220 away from the optical element 100, wherein the refractive index of the formed nanoparticle layer is between that of air. Between the refractive index of the interference film layer 220 and the refractive index of the interference film layer 220 , the interference film layer 220 and the nanoparticle layer as a whole form a structure in which the refractive index gradually decreases in the direction away from the optical element 100 .
本申请实施例公开的光学组件通过在光学元件100上设置干涉膜层220，使得干涉膜层220可以实现一定程度的减少光线的反射，进一步通过在干涉膜层220的背离光学元件100的一侧形成纳米颗粒层，且形成的纳米颗粒层的折射率介于空气的折射率与干涉膜层220的折射率，从而使得干涉膜层220与纳米颗粒层形成的整体可以在背离光学元件100的方向上形成折射率逐渐减小的结构，从而可以进一步提升光学组件的减少光线反射的效果。在此种情况下，可选地，微粒膜层210可以仅包括纳米颗粒212。The optical assembly disclosed in the embodiment of the present application disposes the interference film layer 220 on the optical element 100 so that the interference film layer 220 can reduce the reflection of light to a certain extent. A nanoparticle layer is formed, and the refractive index of the formed nanoparticle layer is between the refractive index of air and the refractive index of the interference film layer 220 , so that the entirety of the interference film layer 220 and the nanoparticle layer can be in the direction away from the optical element 100 A structure with a gradually decreasing refractive index is formed on the optical component, which can further improve the effect of optical components on reducing light reflection. In this case, optionally, the particulate film layer 210 may only include nanoparticles 212 .
进一步的，干涉膜层220可以为多个，多个干涉膜层220可以依次叠置于光学元件100，纳米颗粒层的折射率可以介于空气的折射率与多个干涉膜层220中的与纳米颗粒层212相接的干涉膜层220的折射率之间。Further, there may be a plurality of interference film layers 220, and the plurality of interference film layers 220 may be stacked on the optical element 100 in sequence. The refractive index of the nanoparticle layer may be between the refractive index of air and the refractive index of the plurality of interference film layers 220. The nanoparticle layer 212 is connected to the refractive index of the interference film layer 220 .
本申请实施例公开的光学组件通过将干涉膜层220设置为多个，通过多个干涉膜层220的堆叠可以进一步提升对更宽波长范围内光线的减反射能力。The optical component disclosed in the embodiment of the present application can further improve the anti-reflection capability of light in a wider wavelength range by arranging multiple interference film layers 220 and stacking multiple interference film layers 220 .
本申请实施例还公开一种电子设备，所公开的电子设备包括上述实施例公开的光学组件。本申请实施例公开的电子设备通过采用上述实施例公开的光学组件，可以解决相关技术中的光学元件采用多层干涉膜的方式减少光线反射时，由于光线的入射角与膜层设计的理想角度存在差异时容易导致减反效果较差的问题。An embodiment of the present application also discloses an electronic device. The disclosed electronic device includes the optical component disclosed in the above embodiment. By using the optical components disclosed in the above embodiments, the electronic devices disclosed in the embodiments of the present application can solve the problem that when the optical elements in the related art use multi-layer interference films to reduce light reflection, due to the incident angle of the light and the ideal angle of the film layer design When there is a difference, it is easy to cause the problem of poor anti-reflection effect.
本申请实施例公开的电子设备可以为手机、平板、照相机等电子设备，本申请实施例对电子设备的种类不做限制。The electronic devices disclosed in the embodiments of this application can be electronic devices such as mobile phones, tablets, cameras, etc. The embodiments of this application do not limit the types of electronic devices.
本发明上文实施例中重点描述的是各个实施例之间的不同，各个实施例之间不同的优化特征只要不矛盾，均可以组合形成更优的实施例，考虑到行文简洁，在此则不再赘述。The above embodiments of the present invention focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not inconsistent, they can be combined to form a better embodiment. Taking into account the simplicity of the writing, here are the No longer.
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本发明的保护之内。The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of the present invention, many forms can be made without departing from the spirit of the present invention and the scope protected by the claims, all of which fall within the protection of the present invention.
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2023
- 2023-07-07 CN CN202310838145.8A patent/CN116893453A/en active Pending
-
2024
- 2024-07-02 WO PCT/CN2024/103015 patent/WO2025011388A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025011388A1 (en) * | 2023-07-07 | 2025-01-16 | 维沃移动通信有限公司 | Optical assembly and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2025011388A1 (en) | 2025-01-16 |
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