Multilayer composite diamond anti-fog transparent lens

Abstract

The utility model discloses a multilayer composite diamond anti-fog transparent lens, and belongs to the technical field of optical lenses. Comprises: a base layer as a lens main body; the transparent electrode layer has a power-on heating function; a diamond film layer; the base body layer, the flexible electrode layer and the diamond film layer are sequentially arranged in a stacked mode, one face of the flexible electrode layer is attached to the base body layer, and the other face of the flexible electrode layer is attached to the diamond film layer. Compared with the prior art, by arranging the diamond film layer and the transparent electrode layer, the transparent electrode layer can rapidly emit heat and conduct heat to the diamond film layer after being electrified, and the diamond film layer has excellent heat conductivity and can be matched with the transparent electrode layer to rapidly eliminate water mist on the lens; therefore, high wear resistance and long-acting anti-fog performance of the lens are realized; meanwhile, as the diamond film layer has excellent wear resistance, the diamond film layer can be set to be thinner, so that the lens can realize light weight and has better optical stability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to optical lens technical field, especially relate to a multilayer composite diamond anti-fog transparent lens. BACKGROUND

[0002] Ordinary lens can produce fog under the condition of temperature difference or humidity, and it is easy to cause blurred vision, in order to solve this problem, the market appears anti-fog lens.

[0003] The anti-fog lens on the market at present mainly adopts anti-fog coating, and the anti-fog coating is generally hydrophobic coating, such as SiO2 Nano coating, and the initial contact angle can reach 110 °, but the contact angle is reduced to below 80 ° after 500 times of wiping, and the anti-fog performance is reduced by 60 %, and the anti-fog coating is poor in wear resistance, and the pencil hardness is generally less than or equal to 3H, and the light transmittance loss of ultraviolet aging test is greater than or equal to 15 % after 1000 hours of use.

[0004] Therefore, how to design a lens with long-acting anti-fog and high wear resistance, while maintaining the light weight and optical stability of the lens, is a problem existing in the prior art. UTILITY MODEL CONTENT

[0005] In order to solve the above problems, the utility model provides a multilayer composite diamond anti-fog transparent lens, which has excellent anti-fog, wear resistance and optical stability.

[0006] Another object of the utility model is to provide a multilayer composite diamond anti-fog transparent lens, which can realize the light weight of the lens.

[0007] In order to achieve the above object, the technical scheme of the utility model is as follows:

[0008] The utility model provides a multilayer composite diamond anti-fog transparent lens, which comprises:

[0009] The base layer is the main body of the lens;

[0010] The transparent electrode layer has the function of heating when electrified;

[0011] The diamond thin film layer;

[0012] The base layer, the flexible electrode layer and the diamond thin film layer are sequentially stacked, and one side of the flexible electrode layer is attached to the base layer, and the other side is attached to the diamond thin film layer.

[0013] Further, the material with the functions of heating when electrified and electrochromic is one of ITO, graphene or metal nanowire network.

[0014] Further, the transparent electrode layer is coated with a color-changing material.

[0015] Further, the color-changing material is one of metal oxide, PB, PBA and MEPE.

[0016] Further, the thickness of the transparent electrode layer is 50-200nm.

[0017] Further, the thickness of the diamond film layer is 0.1-5um, and the surface roughness Ra is less than or equal to 50nm.

[0018] Further, the substrate layer is made of transparent material with wear resistance and high temperature resistance.

[0019] Further, the transparent material with wear resistance and high temperature resistance is one of quartz and glass.

[0020] Further, the transparent electrode layer is deposited on the substrate layer by magnetron sputtering or chemical vapor deposition, and the diamond film layer is bonded to the transparent electrode layer by the adhesive layer.

[0021] Further, the adhesive layer is one of methyl methacrylate or UV glue.

[0022] Compared with the prior art, the diamond film layer and the transparent electrode layer are arranged, the transparent electrode layer can quickly heat after being powered on, the heat is conducted to the diamond film layer, the diamond film layer has excellent heat conductivity, can cooperate with the transparent electrode layer to quickly eliminate the water mist on the lens, and the long-acting anti-fog performance of the lens is realized; meanwhile, the diamond film layer has excellent wear resistance, can be arranged to be relatively thin, the lens can realize light weight, and has good optical stability. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of a diamond anti-fog transparent lens.

[0024] In the figure: 1, substrate layer; 2, transparent electrode layer; 3, diamond film layer. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0026] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0027] Referring to Figure 1 The embodiment provides a multi-layer composite diamond anti-fog transparent lens which comprises:

[0028] a base layer 1 as a lens body;

[0029] a transparent electrode layer 2 having a function of heating by electrification;

[0030] a diamond film layer 3;

[0031] The base layer 1, the flexible electrode layer and the diamond film layer 3 are sequentially stacked, and one side of the flexible electrode layer is attached to the base layer 1, and the other side is attached to the diamond film layer 3.

[0032] In the present application, the diamond film layer 3 as an outer layer of the transparent lens has a thermal conductivity of ≥1000 W / m·K, a Vickers surface hardness of 80 GPa, and a roughness increase of only 2 nm after Taber abrasion resistance test (1000 cycles), has excellent thermal conductivity and abrasion resistance, can accelerate the diffusion of surface heat, and can realize rapid defogging in cooperation with the transparent electrode layer 2.

[0033] Further, the transparent electrode layer 2 is made of ITO, graphene or metal nanowire network and the like, which has a low working voltage and power density, a working voltage of 1.5-5V and a power density of only 0.8W / cm 2 , a heating rate of ≥3℃ / s and a small power consumption, which can be powered by a small battery such as a button cell, which can be installed on the product body such as glasses frame, without increasing the thickness of the lens, so as to realize the lightweight of the lens; at the same time, ITO, graphene or metal nanowire network and the like can be quickly heated after electrification, and in cooperation with the high thermal conductivity of the diamond film layer 3, rapid defogging can be realized.

[0034] Further, by spin coating or dip coating metal oxide, PB, PBA, MEPE and other color-changing materials on ITO, graphene or metal nanowire network and the like, cathodic coloring is realized, a color-changing film is formed on the transparent layer substrate, which has electrochromic function, can adjust its light transmittance according to the working voltage, the greater the voltage, the higher the light transmittance, and after electrification, the light transmittance can be adjusted to 10-80%, which has the effect of preventing strong light and protecting eyes.

[0035] Further, the thickness of the transparent electrode layer 2 is 50-200nm, which has a thin thickness under the premise of ensuring excellent electric heating performance, and is convenient for realizing the lightweight of the lens.

[0036] Further, the thickness of the diamond film layer 3 is 0.1-5μm, and the surface roughness Ra is ≤50nm, which has a thin thickness and can realize the lightweight of the lens.

[0037] Further, the base layer 1 is made of transparent materials such as quartz and glass which have abrasion resistance and high temperature resistance.

[0038] Further, the preparation method of the diamond anti-fog transparent lens of the embodiment is as follows:

[0039] 1. Pretreatment of the substrate layer 1:

[0040] 1) Cutting and rough grinding: cutting the raw material into a blank and roughly grinding to approach the target curvature;

[0041] 2) Fine grinding and polishing: using a diamond grinding wheel or cerium oxide polishing liquid to make the surface roughness reach the nanometer level, ≤50 nm.

[0042] 3) Cleaning: ultrasonic cleaning to remove particulate contaminants and provide a clean surface for coating.

[0043] 2. Preparing a flexible transparent electrode layer 2 on the surface of the substrate layer 1:

[0044] 1) When metal oxide is used as the transparent electrode layer 2, a magnetron sputtering method or a chemical vapor deposition method is used to coat the transparent electrode layer 2 on the surface of the substrate layer 1;

[0045] 2) When silver nanowires are used as the transparent electrode layer 2: silver nanowires are synthesized by a solution method, and then are spin-coated, sprayed, or printed into a network structure.

[0046] 3) When graphene and carbon nanotubes (CNTs) are used as the transparent electrode layer 2: graphene / carbon nanotubes are grown by chemical exfoliation or CVD, and are transferred to the substrate layer 1 to form a conductive network.

[0047] 3. Preparing a diamond thin layer:

[0048] 1) Depositing a diamond thin film on the surface of silicon or other substrate materials by a CVD method, with a thickness of 0.1-5 um;

[0049] 2) Separating the diamond from the surface of the silicon substrate or other substrate materials by a tape (thermal release tape or photosensitive tape, with a viscosity of not less than 1.0 N / cm) or a chemical etching method;

[0050] 4. Interlayer bonding:

[0051] 1) Coating an interlayer adhesive such as polymethyl methacrylate (PMMA) or UV glue on the surface of the transparent electrode layer 2;

[0052] 2) Bonding the diamond film and the surface of the transparent electrode layer 2, placing them in a vacuum device to remove air bubbles in the bonding, and using heating or UV light irradiation to solidify the bonding layer. The thermal release tape will peel off from the surface of the diamond during the heating process; the photosensitive tape will peel off from the surface of the diamond during the UV light irradiation process.

[0053] 5. Lens surface treatment:

[0054] 1) using a diamond grinding wheel to polish the diamond upper surface of the lens;

[0055] 2) ultrasonic cleaning removes particulate contaminants, providing a clean surface for coating.

[0056] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-layered, composite, anti-fog, transparent, diamond lens, characterized in that, The application relates to a diamond film lens, which comprises the following parts: a base layer as a lens body; a transparent electrode layer with electric heating function; a diamond film layer; the base layer, the flexible electrode layer and the diamond film layer are sequentially stacked, one side of the flexible electrode layer is attached to the base layer, and the other side is attached to the diamond film layer.

2. The multi-layered composite diamond anti-fog transparent ophthalmic lens of claim 1, wherein, The material of the transparent electrode layer is one of ITO, graphene or metal nanowire network.

3. The multi-layered composite diamond anti-fog transparent ophthalmic lens of claim 2, wherein, The transparent electrode layer is coated with a color-changing material by spin coating or dip coating, and the color-changing material is one of metal oxide, PB, PBA or MEPE.

4. The multi-layered composite diamond anti-fog transparent ophthalmic lens of claim 1 or 2, wherein, The thickness of the transparent electrode layer is 50-200 nm.

5. The multi-layered composite diamond anti-fog transparent ophthalmic lens of claim 1, wherein, The thickness of the diamond film layer is 0.1-5 microns, and the surface roughness Ra is less than or equal to 50 nm.

6. The multi-layered composite diamond anti-fog transparent ophthalmic lens of claim 1, wherein, The base layer is made of transparent material with wear resistance and high-temperature resistance.

7. A multi-layered composite diamond anti-fog transparent ophthalmic lens according to claim 6, wherein, The transparent material with wear resistance and high-temperature resistance is one of quartz and glass.

8. The multi-layered composite diamond anti-fog transparent ophthalmic lens of claim 1, wherein, The transparent electrode layer is deposited on the base layer by a magnetron sputtering method or a chemical vapor deposition method, and the diamond film layer is adhered to the transparent electrode layer by an adhesive layer.

9. The multi-layered composite diamond anti-fog transparent ophthalmic lens of claim 8, wherein, The adhesive layer is one of methyl vinyl methyl acetate or UV glue.

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