Method and system for testing waterproof performance of coated lens with high friction coefficient

Abstract

The invention provides a waterproof performance testing method and system for high-friction-coefficient coated lenses, and relates to the technical field of performance tests.The method comprises the steps that multiple high-friction-coefficient coated lenses are obtained to serve as multiple samples, and the multiple samples are cleaned and subjected to pretreatment drying; performing water contact simulation treatment based on the pretreated sample, and performing friction performance test on the sample subjected to water treatment; comparing, calculating and analyzing a friction performance test result to obtain a friction performance change trend; performing contact angle testing on the surfaces of the plurality of samples, and obtaining a contact angle change trend; and evaluating the waterproof performance grades of the plurality of samples in combination with the friction performance change trend and the contact angle change trend, and generating a waterproof performance grade evaluation report. According to the invention, the technical problem that the structural stability and wear-resistant durability of the coating cannot be comprehensively reflected in the prior art can be solved, and the technical effect of improving the lens coating adaptability evaluation efficiency and reliability is achieved.

Description

Technical Field

[0001] The present application relates to the field of performance testing technology, and in particular to a method and system for testing the waterproof performance of a high-friction-coefficient coated lens. Background Art

[0002] High-friction coated lenses, due to their excellent surface properties, are widely used in areas such as anti-slip, shock absorption, and wear resistance. They are particularly important in optical instruments, sports equipment, and precision instruments. However, with the increasing complexity and variability of application environments, the waterproof performance of these coated lenses has become a key factor limiting their long-term stability and service life.

[0003] At present, traditional waterproof performance tests mostly focus on surface hydrophobicity measurements, such as contact angle tests, but ignore the dynamic changes in friction performance in water environments and cannot fully reflect the durability and stability of the coating in actual use. Although the contact angle test can effectively characterize the wettability of the surface to water, its measurement is often static and single, and cannot reveal the friction response, structural loss or adhesion changes of the coating during water contact. For example, a coating has good hydrophobicity when the initial contact angle reaches 110 degrees, but after continuous friction or repeated wetting and drying cycles, the coating may develop microcracks, delamination, or even structural migration. At this time, even if the contact angle does not change much, the friction coefficient has fluctuated greatly, resulting in its inability to maintain its original performance in real scenarios. Therefore, using contact angle as the only basis for evaluation is likely to lead to an inflated judgment, ignoring the actual degradation process of the coating under the interaction of dynamic loads and water intrusion.

[0004] In summary, the existing technology has technical problems such as the single waterproof performance testing method and the focus on static contact angle measurement, which ignores the dynamic changes in the friction performance of coated lenses in water environments. As a result, it is unable to fully reflect the structural stability and wear resistance of the coating under real wet usage conditions, further affecting the accuracy of performance evaluation of high-friction coefficient coated lenses in complex environments and the scientific nature of product quality control. Summary of the Invention

[0005] The purpose of this application is to provide a method and system for testing the waterproof performance of high-friction-coated lenses, so as to solve the technical problems in the prior art that the waterproof performance testing method is single and focuses on static contact angle measurement, ignoring the dynamic changes in the friction performance of the coated lenses in a water environment, resulting in the inability to fully reflect the structural stability and wear resistance of the coating under real wet usage conditions, further affecting the accuracy of performance evaluation of high-friction-coated lenses in complex environments and the scientific nature of product quality control.

[0006] In view of the above problems, the present application provides a method and system for testing the waterproof performance of high friction coefficient coated lenses.

[0007] In the first aspect, the present application provides a method for testing the waterproof performance of a high-friction-coated lens, which is implemented by a system for testing the waterproof performance of a high-friction-coated lens, including: obtaining multiple high-friction-coated lenses as multiple samples, cleaning the multiple samples and completing pre-treatment drying; performing water contact simulation treatment on the pre-treated samples, and performing a friction performance test on the water-treated samples; performing comparative calculation and analysis on the friction performance test results to obtain a friction performance change trend; performing contact angle tests on the surfaces of the multiple samples to obtain a contact angle change trend; and evaluating the waterproof performance levels of the multiple samples in combination with the friction performance change trend and the contact angle change trend to generate a waterproof performance level evaluation report.

[0008] Preferably, the method for testing the waterproof performance of a high-friction-coated lens further includes: selecting a plurality of high-friction-coated lenses from a plurality of production batches as a plurality of samples; recording an initial friction performance index for each sample; recording an initial contact angle parameter for each sample; recording a surface coating structure type and process information for each sample; and establishing a sample basic information table based on the recorded results of the initial friction performance index, initial contact angle parameter, surface coating structure type and process information.

[0009] Preferably, the method for testing the waterproof performance of a high-friction-coefficient coated lens further includes: removing surface particles and oil stains from the sample surface, and cleaning the sample multiple times with a compatible cleaning agent; after cleaning, using low-temperature drying to evaporate the water, observing the surface of the dried sample, and after determining whether it meets the treatment requirements, placing the sample in a constant environment for a preset time.

[0010] Preferably, the method for testing the waterproof performance of a high-friction-coefficient coated lens further comprises: placing the plurality of samples on a simulation test platform for standardized water contact treatment simulation; performing water stain removal treatment on the samples that have completed the simulation treatment; and placing the treated samples in a non-contact area for natural cooling.

[0011] Preferably, the method for testing the waterproof performance of a high-friction-coefficient coated lens further comprises: placing the water-treated sample into a sealed drying device; setting the drying environment conditions and starting the treatment process; monitoring the changes in the sample surface during the drying process; recording the sample surface state after drying is completed; and numbering the dried sample into a warehouse and sending it to the next test process.

[0012] Preferably, the method for testing the waterproof performance of a high-friction-coefficient coated lens further includes: setting a test mode and test path for the sample, and performing a friction experiment on the sample surface using a test device; collecting friction force change data during the test, smoothing and aligning the friction force curve, and outputting the friction performance test results.

[0013] Preferably, the method for testing the waterproof performance of a high-friction-coefficient coated lens further includes: establishing a control group of friction performance test results before and after treatment, comparing changes in characteristic points in the friction performance test results, and calculating a friction performance change trend; judging whether the sample performance change meets a preset standard based on the friction performance change trend, and marking the judgment result as a performance change index.

[0014] In the second aspect, the present application also provides a waterproof performance testing system for high-friction-coated lenses, which is used to execute a waterproof performance testing method for high-friction-coated lenses as described in the first aspect, including: a sample acquisition module, the sample acquisition module is used to acquire multiple high-friction-coated lenses as multiple samples, clean the multiple samples and complete pre-treatment drying; a simulation processing module, the simulation processing module is used to perform water contact simulation treatment based on the pre-treated samples, and perform friction performance testing on the water-treated samples; a calculation and analysis module, the calculation and analysis module is used to compare and calculate the friction performance test results to obtain the friction performance change trend; a contact angle testing module, the contact angle testing module is used to perform contact angle testing on the surfaces of the multiple samples and obtain the contact angle change trend; a grade assessment module, the grade assessment module is used to assess the waterproof performance grade of the multiple samples in combination with the friction performance change trend and the contact angle change trend, and generate a waterproof performance grade evaluation report.

[0015] The technical solution provided in this application has at least the following technical effects or advantages: by achieving the technical goal of constructing a multi-dimensional dynamic waterproof performance testing system that takes into account both friction response and surface wetting characteristics, it achieves the technical effect of accurately quantifying the comprehensive performance change trend of the coating during simulated water contact treatment, and improving the efficiency and reliability of the adaptability evaluation of the lens coating in complex application scenarios.

[0016] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, which can be implemented in accordance with the contents of the description, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are specifically listed below. It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in this application or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and a person of ordinary skill in the art can obtain other drawings based on the provided drawings without creative work.

[0018] Figure 1 This is a flow chart of a method for testing the waterproof performance of a high-friction-coefficient coated lens in this application.

[0019] Figure 2 This is a schematic diagram of the structure of a waterproof performance testing system for a high-friction-coefficient coated lens in this application.

[0020] Description of reference numerals: sample acquisition module 11, simulation processing module 12, calculation and analysis module 13, contact angle test module 14, contact angle test module 15, grade assessment module 16 DETAILED DESCRIPTION

[0021] This application provides a method and system for testing the waterproof performance of high-friction-coated lenses. This solves the technical problem in the prior art that the waterproof performance testing method is single and focuses on static contact angle measurement, ignoring the dynamic changes in the friction performance of the coated lens in a water environment. This results in an inability to fully reflect the structural stability and wear resistance of the coating under real wet use conditions, further affecting the accuracy of performance evaluation of high-friction-coated lenses in complex environments and the scientific nature of product quality control. This application achieves the technical goal of constructing a multi-dimensional dynamic waterproof performance testing system that takes into account both friction response and surface wetting characteristics, achieving the technical effect of accurately quantifying the comprehensive performance change trend of the coating during simulated water contact treatment and improving the efficiency and reliability of adaptability evaluation of lens coatings in complex application scenarios.

[0022] Below, the technical solutions in this application will be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this application, rather than all the embodiments of this application. It should be understood that this application is not limited to the example embodiments described herein. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. It should also be noted that, for the convenience of description, only the parts related to this application, rather than all of them, are shown in the accompanying drawings.

[0023] For example, see the attached Figure 1 The present application provides a method for testing the waterproof performance of a high-friction-coated lens, which is applied to a system for testing the waterproof performance of a high-friction-coated lens. The method specifically includes the following steps:

[0024] A plurality of high friction coefficient coated lenses are obtained as a plurality of samples, and the plurality of samples are cleaned and pre-treated and dried.

[0025] Specifically, several coated products with high friction properties on the surface are selected from representative optical lenses for subsequent experiments or performance tests. The high friction coefficient means that the lens generates a large resistance when sliding on the surface, which is often used in scenarios requiring anti-slip, shock resistance or high stability. The setting of multiple samples can increase the reliability of data statistics and the repeatability of results. Cleaning multiple samples means using a special cleaning method to remove dust, oil stains and microparticles on the surface of the lens to avoid impurities interfering with subsequent tests. The selection of cleaning agents needs to consider compatibility with the coating material to prevent damage to the coating structure. Pre-treatment drying is to volatilize the sample after cleaning, and use low-temperature drying or vacuum drying to avoid thermal stress or chemical changes affecting the performance of the lens, ensuring that the sample is in a stable and contamination-free state before entering the test.

[0026] Water contact simulation treatment was performed on the pretreated samples, and friction performance tests were performed on the water-treated samples.

[0027] Specifically, after cleaning and drying, the stable high-friction-coated lens samples are introduced into a simulated water environment. The simulated treatment methods may include spraying, misting, immersion or condensation. The purpose is to simulate the scene where the lens is intruded by water vapor, raindrops or liquids in actual applications. The intensity, duration and mode of action of the simulated water contact must be consistent to ensure the comparability of the tests. After the lens samples that have undergone water contact simulation are dried and recovered, the friction coefficient is measured using dedicated equipment. The test process needs to record the changes in the friction force of the samples under conditions such as loading, sliding, and repeated friction, so as to evaluate the impact of water contact on the physical properties of the coating surface. Since moisture may cause the coating structure to expand, soften or even partially fall off, thereby causing a decrease in the friction coefficient, this test can intuitively reflect the stability of the coating in a humid environment.

[0028] Compare and calculate the friction performance test results to obtain the friction performance change trend.

[0029] Specifically, the friction test data of samples before and after water treatment are quantitatively compared, and the changing characteristics of friction performance are extracted through numerical calculations. This process generally involves calculating the ratio of average friction coefficients, determining the difference in maximum friction force, and comparing the fluctuation amplitude of the friction curve. The computational analysis can effectively identify whether the coating has performance degradation in a wet environment. Based on this comparative analysis, the change data of multiple samples are summarized and fitted to determine the overall trend of performance changes with treatment intensity, time, or number of cycles. This trend can be linear, stable, or exhibit critical mutations, depending on the coating material, structural stability, and the strength of the treatment conditions.

[0030] Contact angle tests are performed on the surfaces of the multiple samples, and a contact angle variation trend is obtained.

[0031] Specifically, after the sample has completed water contact treatment and dried, a measuring instrument is used to add tiny water droplets to the lens surface. The angle formed between the droplet and the surface is recorded by an imaging device. This angle is the contact angle, which is used to reflect the wetting characteristics of the lens surface. The larger the angle, the more hydrophobic the surface, and the smaller the angle, the more hydrophilic the surface. This test usually needs to be repeated multiple times in multiple areas of the sample surface to improve the representativeness and stability of the data. The contact angle measurement data of all samples before and after treatment are compared. The average value, change range, and rate of decrease are used to analyze whether the sample's hydrophobicity changes with water contact treatment. This trend reflects the change in the surface energy of the coating after being affected by water.

[0032] The waterproof performance levels of the plurality of samples are evaluated in combination with the friction performance change trend and the contact angle change trend, and a waterproof performance level evaluation report is generated.

[0033] Specifically, after the samples have been subjected to simulated water contact, the changes in friction performance and contact angle are comprehensively analyzed. An evaluation standard system is established to grade and classify the samples' water repellency. The grades are typically based on performance retention, magnitude of change, and surface stability, ensuring that the evaluation results fully reflect the coating's actual performance in a wet environment. The comprehensive analysis results are compiled into a standardized document containing each sample's performance level, test data, trend charts, and evaluation basis to facilitate subsequent product quality control, process optimization, and application selection.

[0034] Furthermore, the present application also includes: selecting multiple high-friction coefficient coated lenses from multiple production batches as multiple samples; recording the initial friction performance index for each sample; recording the initial contact angle parameter for each sample; recording the surface coating structure type and process information for each sample; and establishing a sample basic information table based on the initial friction performance index, initial contact angle parameter, surface coating structure type and process information as the recorded results.

[0035] Specifically, multiple high-friction-coated lenses were selected from multiple production batches as samples. Samples were selected from one or more batches of lenses manufactured at different time periods or under different production conditions to ensure that the selected lenses were representative in terms of coating process, substrate material, or operating environment. High-friction-coated lenses are optical lenses with a special coating treatment that results in high friction resistance. This characteristic is typically used in applications requiring anti-slip, anti-shake, or high-grip grip. By sampling from different batches, we can more comprehensively reflect the impact of actual process fluctuations on waterproof performance test results.

[0036] Initial friction performance metrics were recorded for each sample. Before any treatment, the friction characteristics of the lens surface were quantitatively measured using a friction tester and expressed as a coefficient of friction. This initial friction performance reflects the physical frictional capacity of the coating and serves as an important benchmark for subsequent analysis of the effects of water treatment on coating stability.

[0037] The initial contact angle parameter is recorded for each sample. This parameter measures the angle formed by a droplet of liquid on the sample's surface and the lens, and is used to measure its hydrophobicity or hydrophilicity. A larger contact angle indicates a more hydrophobic surface, meaning that water droplets are less likely to spread on the lens surface; a smaller contact angle indicates a more hydrophilic surface. The initial contact angle parameter effectively describes the surface chemistry of the coating and provides a preliminary basis for evaluating water repellency.

[0038] The surface coating structure type and process information are recorded for each sample, and the coating material composition, thickness level, microstructure distribution and process route adopted on the surface of each lens are recorded in detail, such as physical vapor deposition, sol-gel method or plasma enhanced technology.

[0039] Based on the initial friction performance indicators, initial contact angle parameters, surface coating structure type, and process information, a sample basic information table is established to summarize all raw attribute data for each sample and organize them into a structured table or database format to facilitate subsequent retrieval, group statistics, or trend analysis. This basic information table is often used as a metadata collection before testing to support the integrity review and horizontal comparison of experimental data.

[0040] Furthermore, the present application also includes: removing surface particles and oil stains from the sample surface, and cleaning the sample multiple times with a compatible cleaning agent; using low-temperature drying to evaporate the water after cleaning, observing the surface of the dried sample, and after determining whether it meets the treatment requirements, placing the sample in a constant environment for a preset time.

[0041] Specifically, the sample surface is treated to remove surface particles and oil. Before subsequent testing, the coated lens surface is cleaned, focusing on removing contaminants such as dust, particles, fingerprints, and grease. Contaminants can interfere with friction performance tests or contact angle measurements, affecting data accuracy, and therefore must be thoroughly removed. Particles primarily originate from suspended matter in the air or processing residues, while oil can come from finger contact or lubricant residue and require appropriate cleaning methods.

[0042] After basic decontamination, the sample is rinsed or soaked multiple times with a cleaning solution that does not damage the coating itself. Compatible cleaning solutions are those that effectively remove contaminants without corrosive or physically damaging the coating structure, such as anhydrous ethanol, deionized water, or specialized optical cleaning solutions. Multiple cleaning cycles improve sample processing consistency and reproducibility, reducing the potential for residual variation from single washes.

[0043] After cleaning, the next test phase cannot be immediately initiated. Any residual moisture or cleaning agent on the lens surface must be evaporated. Low-temperature drying is typically accomplished in a hot air oven, vacuum dryer, or through natural ventilation in a cleanroom. Compared to high-temperature treatment, this method is more effective in preventing thermal stress damage to the lens coating and maintaining its physical structural stability.

[0044] After the drying process is complete, inspect the sample surface using a microscope or the naked eye to check for water stains, detergent residue, or residual particles. Surface inspection is crucial to ensure that the sample remains in the same initial condition as before testing. Only samples that meet these standards are allowed to proceed to the next stage of the process.

[0045] The lenses that pass the inspection are pre-treated and then stored so that their surface state is maintained under constant conditions such as temperature, humidity, and airflow for a period of time to reach a stable state. This eliminates short-term fluctuations caused by surface tension or environmental disturbances after cleaning and drying, and ensures that the samples are in a representative physical state when they enter the testing phase.

[0046] Furthermore, the present application also includes: placing the multiple samples on a simulation test platform for standardized water contact treatment simulation; performing water stain residue removal treatment on the samples that have completed the simulation treatment; and placing the treated samples in a non-contact area for natural cooling.

[0047] Specifically, multiple cleaned and dried high-friction coated lens samples were placed in a device with uniform testing conditions. A consistent water spray pattern, droplet distribution, and wet contact state were then applied to simulate a water environment. The simulation test platform features constant-pressure water supply, uniform spraying, and controllable angles to simulate the wet conditions encountered in common application scenarios, including natural rainfall, mist, condensation, or short-term immersion. Standardization ensures that all samples are consistent in parameters such as time, water flow rate, and spray direction to ensure comparable test results.

[0048] After the sample has been exposed to water, irregular water droplets, water films, or mineral deposits may remain on the surface, requiring appropriate cleaning. Typically, this is done using absorbent paper, clean air drying, or low-speed spin drying to prevent secondary contamination or alteration of the surface coating structure. Failure to promptly remove residual water stains can interfere with subsequent friction coefficient or contact angle measurements, causing measurement deviations. Therefore, this step is crucial to test accuracy.

[0049] After water stains are removed, samples are not directly tested. Instead, they are transferred to an area free from external interference and heat radiation, allowing them to recover their temperature and surface conditions at room temperature. This non-contact area is typically a closed, clean, low-airflow, constant-temperature space to prevent external dust adhesion or contact disturbances during the cooling process from affecting test results. Natural cooling, compared to forced drying, maintains the sample's thermal equilibrium better, thus helping to restore its true material properties.

[0050] Furthermore, the present application also includes: placing the water-treated sample into a sealed drying device; setting the drying environment conditions and starting the treatment process; monitoring the changes in the sample surface during the drying process; recording the surface status of the sample after drying is completed; numbering the dried sample into storage and sending it to the next test process.

[0051] Specifically, high-friction-coated lens samples, which have undergone water contact simulation and preliminary cleaning, are transferred to a sealed drying facility for dehumidification. Sealed drying equipment typically features a temperature control system, airflow regulation, and anti-contamination mechanisms to prevent particles, moisture, or organic vapors from interfering with the sample surface, ensuring controllable drying and consistent sample cleanliness.

[0052] Before drying begins, appropriate parameters such as temperature, humidity, wind speed, or vacuum level are set based on the physical properties and thermal stability of the sample coating. Drying conditions must be designed to effectively remove moisture without damaging the coating structure or inducing stress deformation. For example, some nano-hydrophobic coatings may peel or crack at high temperatures, necessitating a low-temperature, slow-speed, and long-duration drying process. Starting the process means enabling the device to execute the pre-set program and enter the formal drying phase.

[0053] During the drying process, non-contact or intermittent visual inspection is used to check for abnormalities such as bubbles, residual liquid, crystallization, or discoloration on the sample surface. This is achieved through window observation, image acquisition, or laser interferometry to ensure uniform and stable drying, avoiding local overheating or insufficient drying that can affect sample consistency. Monitoring can identify problems during the drying process in advance and reduce scrap rates.

[0054] After the entire drying process is completed, the integrity, cleanliness, and optical uniformity of the sample surface are inspected using a microscope, imager, or visual observation. The relevant surface conditions are recorded in the form of images, scores, or text descriptions. This is an important basis for subsequent analysis of sample performance fluctuations or traceability, and is also a key reference for evaluating the applicability of the drying process.

[0055] Samples that have been dried and are in good condition are coded and archived, and then moved on to the next performance test step, such as friction testing or contact angle measurement. This numbered storage not only ensures traceability of each sample throughout the entire process but also facilitates subsequent data management and result correlation analysis.

[0056] Furthermore, the present application also includes: setting the test method and test path of the sample, and using the test equipment to perform a friction experiment on the sample surface; collecting friction force change data during the test, smoothing and aligning the friction force curve, and outputting the friction performance test results.

[0057] Specifically, before conducting a friction test, the specific parameters and operating procedures of the friction test are determined based on the physical properties, surface configuration, and required evaluation content of the high-friction-coefficient coated lens. Testing methods typically include linear reciprocating friction, rotational friction, or point contact sliding, and different methods are suitable for different contact structures or motion models. The test path refers to the trajectory and range of movement of the friction head or contact surface on the sample surface, including the path length, number of repetitions, and direction arrangement, which significantly affects the repeatability and representativeness of the test.

[0058] Physical contact testing is performed on the sample using an instrument with standard control functions. By applying a certain normal force and moving the friction element across the sample surface, the friction coefficient or frictional resistance data under actual friction conditions is obtained. Testing equipment may include atomic force microscopes, ball-on-disc tribometers, and micro-tribometric platforms. The choice of equipment should be based on the sample size, coating material, and experimental accuracy requirements.

[0059] During the relative motion between the sample and the friction head, the friction force generated is recorded as it changes dynamically with time, displacement, or number of cycles. The collected data often exhibits some volatility, which stems from surface microstructure, material adhesion effects, or equipment precision errors, necessitating further processing of the raw data.

[0060] Mathematical algorithms are applied to the collected raw friction data to reduce noise. Data from different samples or multiple experiments are normalized on a time or path axis to ensure comparability. Common processing methods include sliding average, filtering and smoothing, and baseline calibration. The processed curves more accurately reflect the friction response characteristics of the coating under load.

[0061] After data collection and processing, the final results are output as numerical values ​​or graphical curves for subsequent comparative analysis. Test results typically include key parameters such as average friction coefficient, maximum friction force, and friction trend, which are important for evaluating the coating's wear resistance, stability, and resistance to water intrusion.

[0062] Furthermore, the present application also includes: establishing a control group of friction performance test results before and after treatment, comparing the changes in characteristic points in the friction performance test results, and calculating the friction performance change trend; judging whether the sample performance change meets the preset standard through the friction performance change trend, and marking the judgment result as a performance change index.

[0063] Specifically, the friction performance test results of samples before and after water exposure simulation were paired and categorized by a unified number or structure to form a one-to-one comparison set. The establishment of a control group effectively eliminates external variables such as batch differences and equipment errors, ensuring that the observed performance changes better reflect the actual impact of the water treatment process on the coating itself.

[0064] Key performance parameters were selected from the control group data for analysis, such as the average friction coefficient, maximum friction force, or trends in the stable range. These characteristic points reflect the frictional behavior of the sample under load. By comparing the changes in the same characteristic before and after treatment, it is possible to preliminarily determine whether the water treatment has caused degradation of the surface structure or physical properties.

[0065] Based on the changes in these characteristic points, formulas or algorithms are used to quantify the direction and magnitude of sample performance changes, forming a continuous or discrete trend line. This trend can manifest as improved performance, decreased performance, or generally stable performance, providing a reference for subsequent grading and material optimization. For example, by calculating the friction retention rate—the ratio of the friction coefficient before and after treatment—a curve showing the decline of this indicator with different treatment intensities can be obtained.

[0066] Trend analysis results are compared to pre-defined evaluation criteria to determine whether the sample's performance is within acceptable limits. These criteria are typically based on material usage, safety thresholds, or industry regulations, defining what constitutes normal performance degradation and what constitutes unacceptable coating failure.

[0067] Conformance or nonconformance is recorded as numbers, grades, or identifiers, creating traceable evaluation labels for sample classification, statistical modeling, and reporting. Quantified performance change indicators can be used not only for quality monitoring but also as a direct basis for material screening and process optimization.

[0068] In summary, the method for testing the waterproof performance of a high-friction-coefficient coated lens provided in this application has the following technical effects: by achieving the technical goal of constructing a multi-dimensional dynamic waterproof performance testing system that takes into account both friction response and surface wetting characteristics, the comprehensive performance change trend of the coating during simulated water contact treatment is accurately quantified, and the efficiency and reliability of the adaptability evaluation of the lens coating in complex application scenarios are improved.

[0069] Example 2: Based on the same inventive concept as the method for testing the waterproof performance of a high-friction-coated lens in the previous example, this application also provides a system for testing the waterproof performance of a high-friction-coated lens. Figure 2 , including: a sample acquisition module 11, the sample acquisition module is used to obtain multiple high-friction coefficient coated lenses as multiple samples, clean the multiple samples and complete pre-treatment drying; a simulation processing module 12, the simulation processing module is used to perform water contact simulation processing based on the pre-treated samples, and perform friction performance testing on the water-treated samples; a calculation and analysis module 13, the calculation and analysis module is used to compare and calculate the friction performance test results to obtain the friction performance change trend; a contact angle testing module 14, the contact angle testing module is used to perform contact angle testing on the surfaces of the multiple samples and obtain the contact angle change trend; a grade assessment module 15, the grade assessment module is used to assess the waterproof performance grade of the multiple samples in combination with the friction performance change trend and the contact angle change trend, and generate a waterproof performance grade assessment report.

[0070] Furthermore, the waterproof performance testing system for a high-friction-coated lens is also used to: select multiple high-friction-coated lenses from multiple production batches as multiple samples; record an initial friction performance index for each sample; record an initial contact angle parameter for each sample; record a surface coating structure type and process information for each sample; and establish a sample basic information table based on the initial friction performance index, initial contact angle parameter, surface coating structure type and process information as the recorded results.

[0071] Furthermore, the waterproof performance testing system for a high-friction-coefficient coated lens is also used to: remove surface particles and oil stains from the sample surface, and clean the sample multiple times with a compatible cleaning agent; after cleaning, use low-temperature drying to evaporate the water, observe the surface of the dried sample, and after determining whether it meets the treatment requirements, place the sample in a constant environment for a preset time.

[0072] Furthermore, the waterproof performance testing system for high-friction-coefficient coated lenses is also used to: place the multiple samples on a simulation test platform for standardized water contact treatment simulation; perform water stain residue removal treatment on the samples that have completed the simulation treatment; and place the treated samples in a non-contact area for natural cooling.

[0073] Furthermore, the waterproof performance testing system for a high-friction-coefficient coated lens is also used to: place the water-treated sample into a sealed drying device; set the drying environment conditions and start the treatment process; monitor the changes in the sample surface during the drying process; record the surface status of the sample after drying is completed; and number the dried sample, store it in a warehouse, and send it to the next test process.

[0074] Furthermore, the waterproof performance testing system for a high-friction coefficient coated lens is also used to: set the test method and test path of the sample, and use the test equipment to perform a friction experiment on the sample surface; collect friction force change data during the test, smooth and align the friction force curve, and output the friction performance test results.

[0075] Furthermore, the waterproof performance testing system for a high-friction coefficient coated lens is also used to: establish a control group of friction performance test results before and after treatment, compare the changes in characteristic points in the friction performance test results, and calculate the friction performance change trend; judge whether the sample performance change meets the preset standard through the friction performance change trend, and mark the judgment result as a performance change index.

[0076] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The method and specific examples for testing the waterproof performance of a high-friction-coated lens in the aforementioned embodiment 1 are also applicable to the system for testing the waterproof performance of a high-friction-coated lens in this embodiment. Through the aforementioned detailed description of the method for testing the waterproof performance of a high-friction-coated lens, those skilled in the art can clearly understand the system for testing the waterproof performance of a high-friction-coated lens in this embodiment. Therefore, for the sake of brevity of the specification, it will not be described in detail here.

[0077] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

[0078] Obviously, those skilled in the art may make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalents, the present application is intended to include these modifications and variations.

Claims

1. A method for testing the waterproof performance of a high-friction-coefficient coated lens, characterized in that: include: A plurality of high-friction-coated lenses are obtained as a plurality of samples, and the plurality of samples are cleaned and pre-treated and dried; Water contact simulation treatment is performed on the pre-treated samples, and friction performance tests are performed on the water-treated samples; Compare and calculate the friction performance test results to obtain the friction performance change trend; Performing contact angle tests on the surfaces of the multiple samples and obtaining a contact angle variation trend; The waterproof performance levels of the plurality of samples are evaluated in combination with the friction performance change trend and the contact angle change trend, and a waterproof performance level evaluation report is generated.

2. The method for testing the waterproof performance of a high-friction-coefficient coated lens according to claim 1, wherein: include: Select multiple high-friction-coated lenses from multiple production batches as multiple samples; Record the initial friction performance index for each sample; The initial contact angle parameters were recorded for each sample; Record the surface coating structure type and process information for each sample; Based on the initial friction performance index, initial contact angle parameters, surface coating structure type and process information as the recording results, a sample basic information table is established.

3. The method for testing the waterproof performance of a high-friction-coefficient coated lens according to claim 2, wherein: include: Remove surface particles and oil from the sample surface, and clean the sample multiple times with a compatible cleaning agent; After cleaning, use low-temperature drying to evaporate the water. Observe the surface of the dried sample to determine whether it meets the processing requirements. Then place the sample in a constant environment for a preset time.

4. The method for testing the waterproof performance of a high-friction-coefficient coated lens according to claim 1, wherein: include: placing the plurality of samples on a simulated test platform to perform standardized water contact treatment simulation; The samples that have completed the simulation treatment are treated to remove water stain residues; The treated samples were placed in a non-contact area for natural cooling.

5. The method for testing the waterproof performance of a high-friction-coefficient coated lens according to claim 1, wherein: include: Place the water-treated sample in a sealed drying device; Set the drying environment conditions and start the treatment process; Monitor changes in sample surface during drying; After drying, record the surface status of the sample; The dried samples are numbered and stored and sent to the next testing process.

6. The method for testing the waterproof performance of a high-friction-coefficient coated lens according to claim 1, wherein: include: Set the test method and test path of the sample, and use the test equipment to perform friction tests on the sample surface; During the test, friction force variation data is collected, the friction force curve is smoothed and aligned, and the friction performance test results are output.

7. The method for testing the waterproof performance of a high-friction-coefficient coated lens according to claim 1, wherein: include: Establishing a control group of friction performance test results before and after treatment, comparing changes in characteristic points in the friction performance test results, and calculating a trend of friction performance changes; The friction performance change trend is used to determine whether the sample performance change meets a preset standard, and the determination result is marked as a performance change indicator.

8. A waterproof performance testing system for high friction coefficient coated lenses, characterized in that: The steps for implementing the method for testing the waterproof performance of a high-friction-coefficient coated lens as claimed in any one of claims 1 to 7 include: A sample acquisition module, wherein the sample acquisition module is used to obtain a plurality of high-friction coefficient coated lenses as a plurality of samples, clean the plurality of samples and complete pre-treatment and drying; A simulation processing module, wherein the simulation processing module is used to perform water contact simulation processing on the pre-treated sample and perform friction performance testing on the water-treated sample; A calculation and analysis module, which is used to perform comparative calculation and analysis on the friction performance test results to obtain the friction performance change trend; A contact angle testing module, configured to perform contact angle testing on the surfaces of the plurality of samples and obtain a contact angle variation trend; A grade assessment module is used to assess the waterproof performance grades of the plurality of samples in combination with the friction performance change trend and the contact angle change trend, and generate a waterproof performance grade assessment report.

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