Extinction liquid for lens cone, extinction lens cone and preparation method and application of extinction liquid

Abstract

The invention provides an extinction liquid for a lens cone, an extinction lens cone and a preparation method and application of the extinction liquid, and belongs to the technical field of optics, the extinction liquid comprises water, an accelerant, a dispersing agent and an affinity agent.The four components are reasonably matched, so that the obtained extinction liquid has an excellent extinction effect on the inner surface of the lens cone, and the extinction effect is good. The extinction liquid can effectively avoid the problem that the lens is interfered by light reflected by the inner surface of the lens cone due to the fact that the inner surface of the lens cone of the camera has a mirror surface effect, further effectively improves the imaging quality of the lens, is relatively weak in corrosion, does not affect the appearance of the lens cone, and is environment-friendly and non-toxic at the same time.

Description

Technical Field

[0001] The invention belongs to the field of optical technology, and in particular relates to a matting liquid for a lens barrel, a matting lens barrel, and a preparation method and application thereof. Background Art

[0002] PC material, or polycarbonate resin, is a non-crystalline engineering material with excellent impact resistance and the ability to maintain integrity when impacted. Therefore, PC material is often mixed with masterbatch and processed into lens barrels of various shapes or sizes through injection molding, extrusion, blow molding, etc. to meet the needs of different optical devices, such as digital camera lens barrels, video camera lens barrels, telescope lens barrels, security surveillance camera lens barrels, head-mounted display device lens barrels, etc.

[0003] In recent years, with the rapid development of electronic technology, people have higher and higher requirements for electronic devices, and are constantly pursuing a better mobile experience. For example, people hope that the camera of electronic devices has better imaging quality; however, the inner surface of the lens barrel of the current camera is a mirror effect, and the light reflected by the inner surface of the lens barrel will interfere with the lens, seriously affecting the imaging quality of the lens.

[0004] CN113391497A discloses a matting method and a matting jig for a lens barrel, wherein a matting layer is formed on the surface of the lens barrel by immersing the lens barrel in ink or a corrosive liquid, thereby allowing the lens barrel to have a certain matting effect; however, the matting effect of the lens barrel obtained by the ink immersion method is limited and cannot meet the current market demand for the matting effect of the lens barrel, and the immersion in the corrosive liquid not only causes safety hazards, but also causes part of the lens barrel to be corroded, thereby affecting the appearance and installation and use.

[0005] Therefore, in order to solve the above problems, it is of great research value to develop a matting liquid that can effectively and safely matte the inner surface of the lens barrel. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a matting liquid for a lens barrel, a matting lens barrel, and a preparation method and application thereof. The matting liquid can effectively matte the inner surface of the lens barrel without affecting the appearance of the lens barrel, and has low corrosiveness and high operational safety.

[0007] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0008] In a first aspect, the present invention provides a matting liquid for a lens barrel, wherein the matting liquid comprises the following components in parts by weight:

[0009] Water 100 parts by weight;

[0010] 1-10 parts by weight of accelerator;

[0011] 1-20 parts by weight of dispersant;

[0012] Affinity agent 1~50 parts by weight.

[0013] The matting liquid for the lens barrel provided by the present invention comprises specific weight portions of water, a promoter, a dispersant and an affinity agent. Through the reasonable combination of the above four components, the obtained matting liquid has an excellent matting effect on the lens barrel, especially on the inner surface of the lens barrel, thereby effectively avoiding the problem that the camera is disturbed by the light reflected by the inner surface of the lens barrel due to the mirror effect of the inner surface of the lens barrel, thereby effectively improving the imaging quality of the lens. At the same time, since the matting liquid has weak corrosiveness, it will not affect the appearance of the lens barrel, and is environmentally friendly and non-toxic.

[0014] The amount of the accelerator may be 1 part by weight, 2 parts by weight, 3 parts by weight, 4 parts by weight, 5 parts by weight, 6 parts by weight, 7 parts by weight, 8 parts by weight, 9 parts by weight or 10 parts by weight.

[0015] The amount of the dispersant can be 1 part by weight, 3 parts by weight, 5 parts by weight, 7 parts by weight, 9 parts by weight, 11 parts by weight, 13 parts by weight, 15 parts by weight, 17 parts by weight, 19 parts by weight or 20 parts by weight, etc.

[0016] The amount of the affinity agent can be 1 part by weight, 5 parts by weight, 10 parts by weight, 15 parts by weight, 20 parts by weight, 25 parts by weight, 30 parts by weight, 35 parts by weight, 40 parts by weight, 45 parts by weight or 50 parts by weight, etc.

[0017] Preferably, the promoter includes limonene, 1-dodecene, 2-methyl-3-butene-2-ol, abietic acid, cycloheptene, cycloheptatriene, shikimic acid, levorotatory-beta-pinene, 3-cyclopentenecarboxylic acid, dicyclopentane, α-rosin alcohol, α-terpinene, 1,5-cyclooctadiene, 4-vinyl-1-cyclohexene, 1-cyclopentylcyclopentene, 3-cyclohexene-1-carboxylic acid, γ-terpinene, α-pinene, retinol, dicyclopentadiene, 1-cyclopentylcyclopentene, dipentene, pinene, (+)-limonene ...terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-ter Any one of a-pinene, (S)-cis-verbenol, perillyl alcohol, menthol, (1S,2S,3R,5S)-(+)-2,3-pinene, (1S,2S,3R,5S)-(+)-2,3-pinenediol, 1,4-cyclohexanediol, cis-1,2-cyclohexyl dimethanol, menthol, cyclohexyl methanol, decalin, heptane, diisobutyl ketone, 2,2,4-trimethylpentane, N,N-dimethylaniline, N,N-diethylaniline, N,N-dibutylaniline or isoheptane, or a combination of at least two thereof.

[0018] Preferably, the dispersant comprises hydroxyethyl cellulose, tristearin, pentaerythritol stearate, lauryl alcohol polyoxyethylene ether, sorbitan trioleate, Span 60, glycerol monooleate, polyethylene glycol stearate, behenamide, sorbitan monopalmitate, polyoxyethylene lauryl ether, polyoxyethylene sorbitan monopalmitate, Tween 20, polyoxyethylene ether, lauric acid glyceryl, Span 20, Tween 85, triolein, alkylphenol polyoxyethylene ether, alkyl polyglycoside, alkyl glycoside, alkylphenol formaldehyde resin polyoxyethylene ether, dodecyl glucoside, myristyl myristate, isooctyl palmitate, tripolyglycerol monooleate, Oleate, decyl oleate, tridecyl stearate, stearyl stearate, hexadecyl palmitate, hydroxyoctadecyl hydroxystearate, myristyl stearate, triisohexadecyl citrate, stearamidoethyl stearate, isocetyl stearate, oleyl oleate, hexadecyl stearate, isooctyl hydroxystearate, hexadecyl myristate, oleyl erucate, coconut fatty acid diethanolamide, ethoxylated (tallow alkyl) amine, lauroyl diethanolamine, cocoyl diethanolamine, cocoyl monoethanolamine, myristyl monoethanolamine, caprylic diethanolamine, tallow acyl diethanolamine, myristyl diethanolamine, moon Lauroyl monoethanolamine, ricinoleyl diethanolamine, isostearyl diethanolamine, stearyl monoethanolamine, linoleyl diethanolamine, oleyl diethanolamine, palm kernel oleyl diethanolamine, acetyl monoethanolamine, β-naphthol alkoxylates, nonylphenol polyoxyethylene (15) ether, nonylphenol polyoxyethylene (5) ether, oleylamine polyoxyethylene (15) ether, castor oil polyoxyethylene (10) ether, nonylphenol polyoxyethylene (10) ether, nonylphenol polyoxyethylene (40) ether, lauryl glycol ether, N,N-di(2-hydroxyethyl)oleylamine, dodecyl sulfate, linear alkylbenzene sulfonate, alkylnaphthalene sulfonate, perfluorooctane Sulfonates, disodium N-laurylaminopropionate, sodium salt of dicarboxylic acid coconut oil derivatives, perfluorobutane sulfonates, lignin sulfonates, lauramine hydrochloride, alkyl sulfosuccinates, ethylenediaminetetraacetate, linear alkyl alcohols, aromatic sulfonic acid-formaldehyde condensates, castor oil polyoxyethylene ethers, fatty alcohol polyoxyethylene ethers, nonylphenol polyoxyethylene ethers, alkyl polyethylene glycol ethers, alkylamine ethers, sorbitan fatty acid esters, lauryl sulfobetaine, dihydroxyethyl alkyl betaine, coconut oil acid amido betaine, polyethylene glycol alkyl ethers or polyoxypropylene glycol alkyl ethers, or any one or a combination of at least two thereof.

[0019] Preferably, the affinity agent is an alcohol solvent and / or a carboxylic acid solvent.

[0020] Preferably, the affinity agent includes any one of methanol, ethanol, n-propanol, isopropanol, n-butanol, sec-butanol, tert-butanol, isobutanol, n-pentanol, 3-pentanol, pentanol, isopentanol, n-hexanol, cyclohexanol, n-octanol, sec-octanol, n-nonanol, benzyl alcohol, ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 1,3-butanediol, 2,3-butanediol, glycerol, 1,5-pentanediol, formic acid, acetic acid, propionic acid, oxalic acid or acrylic acid, or a combination of at least two thereof.

[0021] Preferably, the particle size range of the matting liquid is 0.1~1.5mm, for example, 0.1mm, 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1mm, 1.2mm, 1.4mm or 1.5mm; if the particle size of the matting liquid is larger than the above range, it is easy to cause the obtained matting liquid to become more corrosive, which will cause the obtained lens barrel to corrode and deform after matting treatment, affecting the installation of the lens in the lens barrel.

[0022] The matte liquid provided by the present invention is in the form of an emulsion, and its particle size refers to the particle size of the emulsion droplets, which can be obtained by testing using a Malvern Panalytical M3000 laser particle size analyzer according to a laser diffraction method.

[0023] Preferably, the material of the lens barrel includes polycarbonate resin and / or acrylonitrile-butadiene-styrene copolymer resin.

[0024] In the present invention, the preparation method of the matting liquid is not particularly limited, as long as the various components are mixed evenly and the particle size of the obtained matting liquid meets the requirements; illustratively, the matting liquid can be prepared according to the following method: a promoter, a dispersant, an affinity agent and water are mixed evenly under stirring to obtain the matting liquid.

[0025] Preferably, the mixing temperature is 0-60°C, such as 0°C, 10°C, 20°C, 30°C, 40°C, 50°C or 60°C, and more preferably 20-60°C.

[0026] Preferably, the mixing time is 0.5 to 120 min, for example, 0.1 min, 1 min, 5 min, 10 min, 20 min, 40 min, 60 min, 80 min, 100 min or 120 min, etc., more preferably 5 to 100 min.

[0027] Preferably, the mixing pressure is 0-2 MPaG, for example, 0 MPaG, 0.2 MPaG, 0.4 MPaG, 0.6 MPaG, 0.8 MPaG, 1 MPaG, 1.2 MPaG, 1.4 MPaG, 1.6 MPaG, 1.8 MPaG or 2 MPaG.

[0028] Preferably, the stirring speed is 500-25000 rpm, for example, 500 rpm, 1000 rpm, 5000 rpm, 7000 rpm, 9000 rpm, 10000 rpm, 15000 rpm, 20000 rpm or 25000 rpm.

[0029] In a second aspect, the present invention provides a matte lens barrel, which is obtained by subjecting the lens barrel to matte treatment using the matte liquid as described in the first aspect.

[0030] In a third aspect, the present invention provides a method for preparing a matte lens barrel, the preparation method comprising: immersing the lens barrel in the matte liquid as described in the first aspect to perform matte treatment, and taking it out to obtain the matte lens barrel.

[0031] Preferably, the temperature of the matting treatment is 10-100°C, for example, 10°C, 20°C, 30°C, 40°C, 50°C, 60°C, 70°C, 80°C, 90°C or 100°C, and more preferably 60-100°C.

[0032] Preferably, the extinction treatment time is 1 to 120 min, for example, 2 min, 4 min, 10 min, 20 min, 40 min, 60 min, 80 min, 100 min or 120 min, etc., more preferably 10 to 120 min.

[0033] Preferably, the taking out further includes the steps of cleaning and drying.

[0034] Preferably, the cleaning is ultrasonic cleaning.

[0035] Preferably, the temperature of the ultrasonic cleaning is 20-80°C, for example, 20°C, 30°C, 40°C, 50°C, 60°C, 70°C or 80°C.

[0036] Preferably, the ultrasonic cleaning time is 1 to 100 min, for example, 1 min, 5 min, 10 min, 20 min, 40 min, 60 min, 80 min or 100 min.

[0037] Preferably, the drying temperature is 30-80°C, for example, 30°C, 40°C, 50°C, 60°C, 70°C or 80°C.

[0038] In a fourth aspect, the present invention provides an application of a matte lens barrel, the application comprising using the matte lens barrel as described in the second aspect in a digital camera, a video camera, a telescope, a security surveillance camera or a head-mounted display device.

[0039] The numerical range described in the present invention not only includes the point values ​​listed above, but also includes any point values ​​between the above numerical ranges that are not listed. Due to space limitations and for the sake of simplicity, the present invention no longer exhaustively lists the specific point values ​​included in the range.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] (1) The matting liquid for lens barrel provided by the present invention comprises four components: a promoter, a dispersant, an affinity agent and water. By properly combining the above four components, the obtained matting liquid can effectively matte the inner surface of the lens barrel without affecting the appearance of the lens barrel.

[0042] (2) The matting liquid for the lens barrel provided by the present invention also has the characteristics of simple matting process, weak corrosiveness of the matting liquid, and environmental protection and non-toxicity. DETAILED DESCRIPTION

[0043] The technical solution of the present invention is further described below by specific implementation methods. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0044] Unless otherwise specified, the raw materials involved below are conventional materials in the art and can be purchased commercially.

[0045] Examples 1 to 7 and Comparative Examples 1 to 6

[0046] Examples 1 to 7 and Comparative Examples 1 to 6 respectively provide a matting liquid for a lens barrel, the particle size range of which is 0.1 to 1.5 mm, and the components and amounts thereof are shown in Table 1. In Table 1, the amount units of each component are all "parts by weight";

[0047] Table 1

[0048]

[0049] “ / ” in the table means not added.

[0050] The preparation method of the matting liquid for lens barrel provided in Examples 1 to 7 and Comparative Examples 1 to 6 comprises: stirring and mixing a promoter, a dispersant, a neutralizer and water at 40° C., 1 MPaG and 10,000 rpm for 50 minutes to obtain the matting liquid.

[0051] Example 8

[0052] A matting liquid for a lens barrel, with a particle size range of 1.5-5 mm, and the components and amounts thereof are the same as those in Example 2, except that the preparation method is: a promoter, a dispersant, a neutralizer and water are stirred and mixed at 400 rpm for 20 minutes to obtain the matting liquid.

[0053] Application Example 1

[0054] A matte lens barrel, the preparation method of which comprises: firstly heating the matte liquid provided in Example 1 to 85°C, then immersing a polycarbonate resin lens barrel in the matte liquid at a temperature of 85°C for matte treatment for 30 minutes, taking it out and placing it in deionized water at 60°C for ultrasonic cleaning for 60 minutes, and then placing it in an oven at 80°C for drying for 4 hours to obtain the matte lens barrel.

[0055] Application Examples 2~8

[0056] A matte lens barrel, which differs from Application Example 1 in that the matte liquid provided in Example 1 is replaced by the matte liquid provided in Examples 2 to 8, and other conditions and parameters are the same as those in Application Example 1.

[0057] Comparative Application Examples 1~6

[0058] A matte lens barrel, which differs from Application Example 1 in that the matte liquid provided by Comparative Examples 1 to 6 is used to replace the matte liquid provided by Example 1, and other conditions and parameters are the same as those of Application Example 1.

[0059] Performance Test:

[0060] (1) Appearance: Visually inspect the lens barrel after deglazing to see if there is any corrosion or deformation.

[0061] (2) Matting effect: Place the trial lens into a matting lens barrel, then install the matting lens barrel in the machine. Determine the matting effect by observing whether the inner surface of the barrel reflects light and interferes with the lens.

[0062] (3) Yield: Observe the lens shading sheet after matte treatment under a microscope to see if there is obvious corrosion, breakage or scratches. If there is no obvious corrosion, breakage or scratches, it is judged as qualified. If there is any obvious corrosion, breakage or scratches, it is judged as unqualified. The yield is the number of qualified shading sheets / the total number of experimental shading sheets × 100%.

[0063] According to the above test method, the extinction lens tubes provided in the corresponding use cases 1 to 8 and the comparative application examples 1 to 6 were tested, and the test results are shown in Table 2:

[0064] Table 2

[0065]

[0066] From the data in Table 2, we can see that:

[0067] The appearance of the matting lens barrels provided in Application Examples 1 to 7 has no obvious corrosion and deformation. After installation, there is no problem of interference with the lens due to light reflected from the inner surface of the lens barrel, and the yield is greater than 95%, indicating that the matting liquid provided in Examples 1 to 7 has a good matting effect on the lens barrel, and at the same time, it has weak corrosion to the lens barrel and will not affect the appearance of the lens barrel.

[0068] By comparing the data of Application Example 1 and Comparative Application Examples 1-2, it can be seen that if the amount of accelerant used is too low, the matting effect of the matting liquid on the lens barrel will be worse, and if the amount of accelerant used is too high, the matting liquid will be more corrosive to the lens barrel, causing corrosion and deformation of the resulting matting lens barrel, affecting the lens installation.

[0069] Comparing the data of Application Example 1 and Comparative Application Examples 3-4, it can be seen that if the amount of dispersant used is too low, the resulting matte lens barrel will also be corroded and deformed, affecting the lens installation. If the amount of dispersant used is too high, the matte effect of the resulting matte lens barrel will also deteriorate.

[0070] Further comparison of the data of Application Example 1 and Comparative Application Examples 5-6 also shows that if the amount of affinity agent used is too low, the matting effect of the matting liquid on the lens barrel will be poor, and if the amount of affinity agent used is too high, the matting liquid will be more corrosive to the lens barrel, causing corrosion and deformation of the resulting matting lens barrel, affecting the installation of the lens.

[0071] Finally, by comparing the data of Application Example 1 and Application Example 8, it can be seen that if the droplet size of the matting liquid is too large, the resulting matting liquid will be more corrosive to the lens barrel, causing corrosion and deformation of the resulting matting lens barrel, affecting the installation of the lens.

[0072] The applicant declares that the above is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention shall fall within the protection scope and disclosure scope of the present invention.

Claims

1. A matting liquid for a lens barrel, characterized in that: The matting liquid comprises the following components in parts by weight: Water 100 parts by weight; 1-10 parts by weight of accelerator; 1-20 parts by weight of dispersant; Affinity agent 1~50 parts by weight.

2. The matting liquid according to claim 1, characterized in that: The accelerators include limonene, 1-dodecene, 2-methyl-3-butene-2-ol, abietic acid, cycloheptene, cycloheptatriene, shikimic acid, levorotatory-beta-pinene, 3-cyclopentenecarboxylic acid, dicyclopentane, α-rosin alcohol, α-terpinene, 1,5-cyclooctadiene, 4-vinyl-1-cyclohexene, 1-cyclopentylcyclopentene, 3-cyclohexene-1-carboxylic acid, γ-terpinene, α-pinene, retinol, dicyclopentadiene, 1-cyclopentylcyclopentene, dipentene, pinene, (+)-limonene, levorotatory-alpha ...terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-terpinene, α-ter Any one of pinene, (S)-cis-verbenol, perillyl alcohol, menthol, (1S,2S,3R,5S)-(+)-2,3-pinane, (1S,2S,3R,5S)-(+)-2,3-pinanediol, 1,4-cyclohexanediol, cis-1,2-cyclohexyl dimethanol, menthol, cyclohexyl methanol, decalin, heptane, diisobutyl ketone, 2,2,4-trimethylpentane, N,N-dimethylaniline, N,N-diethylaniline, N,N-dibutylaniline or isoheptane, or a combination of at least two thereof.

3. The matting liquid according to claim 1, characterized in that: The dispersant includes hydroxyethyl cellulose, tristearic acid glyceryl, pentaerythritol stearate, lauryl alcohol polyoxyethylene ether, trioleic acid sorbitan, Span 60, glycerol monooleate, polyethylene glycol stearate, behenamide, sorbitan monopalmitate, polyoxyethylene lauryl ether, polyoxyethylene sorbitan monopalmitate, Tween 20, polyoxyethylene ether, lauric acid glyceryl, Span 20, Tween 85, trioleic acid glyceryl, alkylphenol polyoxyethylene ether, alkyl polyglycoside, alkyl glycoside, alkylphenol formaldehyde resin polyoxyethylene ether, dodecyl glycoside, myristyl myristate, isooctyl palmitate, tripolyglycerol monooleate , Decyl oleate, Tridecyl stearate, Octadecyl stearate, Cetyl palmitate, Hydroxyoctadecyl hydroxystearate, Myristyl stearate, Triisohexadecyl citrate, Stearamidoethyl stearate, Isocetyl stearate, Oleyl oleate, Cetyl stearate, Isooctyl hydroxystearate, Cetyl myristate, Oleyl erucate, Coconut fatty acid diethanolamide, Ethoxylated (tallow alkyl) amine, Lauroyl diethanolamine, Cocoyl diethanolamine, Cocoyl monoethanolamine, Myristyl monoethanolamine, Caprylic diethanolamine, Tall oil diethanolamine, Myristyl diethanolamine, Lauroyl Monoethanolamine, ricinoleyl diethanolamine, isostearyl diethanolamine, stearyl monoethanolamine, linoleyl diethanolamine, oleyl diethanolamine, palm kernel oleyl diethanolamine, acetyl monoethanolamine, alkoxy compounds of β-naphthol, nonylphenol polyoxyethylene (15) ether, nonylphenol polyoxyethylene (5) ether, oleylamine polyoxyethylene (15) ether, castor oil polyoxyethylene (10) ether, nonylphenol polyoxyethylene (10) ether, nonylphenol polyoxyethylene (40) ether, lauryl glycol ether, N,N-di(2-hydroxyethyl)oleylamine, dodecyl sulfate, linear alkylbenzene sulfonate, alkylnaphthalene sulfonate, perfluorooctane sulfonate any one of or a combination of at least two of the following: acrylamide, disodium N-laurylaminopropionate, sodium salt of dicarboxylic acid coconut oil derivative, perfluorobutane sulfonate, lignin sulfonate, lauramine hydrochloride, alkyl sulfosuccinate, ethylenediaminetetraacetate, linear alkyl alcohol, aromatic sulfonic acid-formaldehyde condensate, castor oil polyoxyethylene ether, fatty alcohol polyoxyethylene ether, nonylphenol polyoxyethylene ether, alkyl polyethylene glycol ether, alkylamine ether, sorbitan fatty acid ester, lauryl sulfobetaine, dihydroxyethyl alkyl betaine, coconut oil acid amido betaine, polyethylene glycol alkyl ether or polyoxypropylene glycol alkyl ether.

4. The matting liquid according to claim 1, characterized in that: The affinity agent is an alcohol solvent and / or a carboxylic acid solvent.

5. The matte liquid according to claim 4, characterized in that: The affinity agent includes any one of methanol, ethanol, n-propanol, isopropanol, n-butanol, sec-butanol, tert-butanol, isobutanol, n-pentanol, 3-pentanol, pentanol, isopentanol, n-hexanol, cyclohexanol, n-octanol, sec-octanol, n-nonanol, benzyl alcohol, ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 1,3-butanediol, 2,3-butanediol, glycerol, 1,5-pentanediol, formic acid, acetic acid, propionic acid, oxalic acid or acrylic acid, or a combination of at least two thereof.

6. The matting liquid according to claim 1, characterized in that: The particle size of the matting liquid ranges from 0.1 to 1.5 mm.

7. A method for preparing a matting liquid, characterized in that: The preparation method comprises: mixing a promoter, a dispersant, an affinity agent and water to obtain the matte liquid according to any one of claims 1 to 6.

8. A matte lens barrel, characterized in that: The matte lens barrel is obtained by subjecting the lens barrel to matte treatment using the matte liquid as described in any one of claims 1 to 6.

9. A method for preparing a matte lens barrel, characterized in that: The preparation method comprises: immersing the lens barrel in the matting liquid as claimed in any one of claims 1 to 6 for matting treatment, and taking it out to obtain the matting lens barrel.

10. An application of a matte lens barrel, characterized in that: The application includes using the matte lens barrel as claimed in claim 8 in a digital camera, a video camera, a telescope, a security surveillance camera or a head-mounted display device.

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