Simulation analysis method and simulation analysis system for optical lens

Abstract

The invention relates to the technical field of optical data processing and simulation, in particular to a simulation analysis method and a simulation analysis system for an optical lens. The method comprises the following steps: collecting geometric parameters and material characteristics of an optical lens, and recording initial parameter information of the lens; based on the initial parameter information of the lens, constructing an initial simulation model of the lens through computer aided design software; acquiring feature data of the optical lens in a use scene, and recording an imaging demand and scene environment temperature and humidity of the use scene to obtain feature data of the use scene; through a data processing technology, a three-dimensional modeling technology and an optical measurement technology, lens geometric parameters and material characteristics are simulated and analyzed for use scene characteristics of the optical lens, a lens simulation optimization model is constructed, and optical performance evaluation is performed on the optical lens with specific use scene characteristics. Therefore, the simulation analysis effect of the optical lens is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of optical data processing and simulation, and in particular to a simulation analysis method and a simulation analysis system for an optical lens. Background Art

[0002] At first, the simulation analysis of optical lenses mainly focused on the optical path design, and ray tracing and imaging analysis were performed through simple geometric optical principles. With the development of finite element analysis technology, simulation analysis of the structural stability of optical lenses began to be performed to evaluate the deformation and stress distribution of lenses under different environmental conditions. The simulation analysis methods of optical lenses have become more diversified and refined, including not only optical path simulation and structural simulation, but also thermal-structural coupling analysis, optical performance optimization, and collision simulation. For example, finite element software such as ANSYS is used to perform thermal-structural coupling analysis on optical lenses to study the impact of temperature changes on the imaging quality of lenses; collision simulation is used to analyze the structural stability and optical performance changes of lenses under impact conditions. However, the existing simulation analysis technology of optical lenses makes it difficult to simulate and analyze the geometric parameters and material properties of optical lenses according to the characteristics of lens usage scenarios, and fails to evaluate the optical performance of optical lenses with specific usage scenario characteristics, resulting in poor results in the simulation analysis of optical lenses. Summary of the invention

[0003] Based on this, it is necessary to provide a simulation analysis method and a simulation analysis system for an optical lens to solve at least one of the above technical problems.

[0004] To achieve the above object, a simulation analysis method for an optical lens is provided, the method comprising the following steps: Step S1: Collecting geometric parameters and material properties of the optical lens and recording initial parameter information of the lens; constructing an initial simulation model of the lens through computer-aided design software based on the initial parameter information of the lens; Step S2: Acquire characteristic data of the optical lens in the usage scene, record the imaging requirements of the usage scene and the temperature and humidity of the scene environment, so as to obtain the usage scene characteristic data; input the usage scene characteristic data into the lens initial simulation model, simulate the optical lens imaging process, and perform optical performance evaluation on the optical lens imaging process to obtain the optical performance evaluation result; Step S3: adjusting the initial simulation model of the lens according to the optical performance evaluation result; if the optical performance evaluation result does not meet the preset performance index, adjusting the optical parameters of the initial simulation model of the lens to obtain a lens simulation optimization model; Step S4: Integrate the lens simulation optimization model into the optical lens simulation device to perform actual optical reflection monitoring to obtain actual optical reflection data; perform simulation analysis on the lens simulation optimization model according to the actual optical reflection data to generate an optical lens simulation analysis report.

[0005] The present invention collects geometric parameters and material properties of optical lenses and records the initial parameter information of the lenses in detail, providing accurate and comprehensive basic data for the construction of subsequent simulation models. The accuracy of these data directly determines the reliability of the simulation model. Based on the initial parameter information of the lenses, the initial simulation model of the lenses is constructed using computer-aided design software, which realizes the rapid transformation from theoretical design to virtual model, provides an efficient platform for subsequent performance evaluation and optimization, and greatly shortens the optical lens research and development cycle. The characteristic data of the optical lens in the use scene, including imaging requirements and scene environment temperature and humidity, is obtained to ensure that the simulation conditions are highly consistent with the actual use scene, and can effectively simulate the real working conditions of the optical lens in actual application, providing an accurate basis for subsequent performance evaluation; the use scene characteristic data is input into the initial simulation model of the lens, the optical lens imaging process is simulated, and the optical performance of the optical lens imaging process is evaluated, which can accurately evaluate the performance of the optical lens in a specific scene, and provide a clear direction for subsequent optimization and adjustment. Adjust the initial simulation model of the lens according to the results of the optical performance evaluation. If the results of the optical performance evaluation do not meet the preset performance indicators, adjust the optical parameters of the initial simulation model of the lens, which can solve the performance problems of the optical lens in specific scenarios in a targeted manner and ensure that the optimized model can meet the actual application requirements; through the adjustment of optical parameters, the obtained lens simulation optimization model can effectively improve the performance of the optical lens to meet the preset performance indicators; improve the imaging quality of the optical lens, enhance its adaptability under different environmental conditions, and lay a solid foundation for subsequent practical applications. Integrate the lens simulation optimization model into the optical lens simulation device for actual optical reflection monitoring, verify the simulation optimization model through actual monitoring data, and ensure the effectiveness of the optimization results of the model in practical applications; simulate and analyze the lens simulation optimization model according to the actual optical reflection data, which can record the performance of the optical lens in the actual use scenario in detail, provide a scientific basis for subsequent further optimization or actual production, and improve the overall efficiency and quality of optical lens research and development. Therefore, the present invention simulates and analyzes the lens geometric parameters and material properties of the optical lens usage scene characteristics through data processing technology, three-dimensional modeling technology and optical measurement technology, constructs a lens simulation optimization model, and evaluates the optical performance of the optical lens with specific usage scene characteristics, thereby improving the effect of simulation analysis of the optical lens.

[0006] Preferably, step S1 comprises the following steps: Step S11: using laser scanning technology, starting from the center of the lens, gradually scanning outwards with a step distance of 0.1-0.2 mm, and recording scanning data to obtain the diameter of the optical lens; Step S12: using a contact measuring tool, starting from the edge of the lens, gradually measuring toward the center with a step distance of 0.05-0.08 mm, and recording the measurement data to obtain the thickness of the optical lens; Step S13: using a coordinate measuring machine, placing the optical lens on a measuring platform, and measuring the offset between the center of the lens and the theoretical center to obtain the center offset of the optical lens; Step S14: combining the optical lens diameter, the optical lens thickness and the optical lens center offset into lens geometric parameters to obtain the optical lens geometric parameters.

[0007] The present invention adopts laser scanning technology to scan gradually from the center of the lens outward, records data with a step distance of 0.1-0.2 mm, and can accurately measure the diameter of the optical lens. This method has the advantage of non-contact measurement, avoids physical contact with the lens surface, ensures that the measurement process does not cause damage to the lens, and ensures high accuracy and repeatability of the measurement data; adopts a contact measurement tool to measure gradually from the edge of the lens to the center, records data with a step distance of 0.05-0.08 mm, and can accurately measure the thickness of the optical lens; the contact measurement tool can directly contact the lens surface, ensure the accuracy and reliability of the measurement data, and provide accurate thickness parameters for subsequent simulation analysis. The offset between the center of the lens and the theoretical center is measured by a coordinate measuring machine, so that the center offset of the optical lens can be accurately obtained. The coordinate measuring machine has the characteristics of high precision and high repeatability, and can effectively detect the deviation of the center position of the lens, providing key data for the subsequent integration of geometric parameters, and ensuring the precise positioning of the lens in the optical system. The optical lens diameter, optical lens thickness and optical lens center offset are combined to realize the integration of multi-dimensional data, ensure the comprehensiveness and accuracy of the optical lens geometric parameters, and improve the overall accuracy and reliability of the optical lens simulation analysis.

[0008] Preferably, step S1 further comprises the following steps: Step S15: using a densitometer, immersing the material of the optical lens in a liquid of known density, and calculating the density of the lens material by the buoyancy principle; using an Abbe refractometer, measuring the refractive index of the material of the optical lens, and measuring the refractive index of the lens material under a sodium lamp with a wavelength of 489.3-589.3 nanometers; Step S16: placing the material of the optical lens in a constant temperature box, and measuring the dimensional change of the material at 20 degrees Celsius, 40 degrees Celsius, and 60 degrees Celsius, respectively, to obtain the thermal expansion coefficient of the lens material; Step S17: combining the lens material density, the lens material refractive index and the lens material thermal expansion coefficient to obtain lens material characteristic parameters; Step S18: Mark the optical lens geometric parameters and lens material characteristic parameters as lens initial parameter information, and input the lens initial parameter information into computer-aided design software to construct an initial simulation model of the lens.

[0009] The present invention uses a densitometer to calculate the density of the lens material by the buoyancy principle, and uses an Abbe refractometer to measure the refractive index of the lens material under a sodium lamp with a wavelength of 489.3-589.3 nanometers. The method can accurately measure the key optical properties of the lens material, ensuring the accuracy and reliability of the density and refractive index data; by measuring the dimensional change of the lens material at 20 degrees Celsius, 40 degrees Celsius and 60 degrees Celsius, the thermal expansion coefficient of the lens material is obtained. The method can comprehensively evaluate the thermal expansion characteristics of the lens material under different temperature conditions, ensuring the integrity and accuracy of the material characteristic data; the lens material density, the lens material refractive index and the lens material thermal expansion coefficient are combined to obtain complete lens material characteristic parameters. The process realizes the integration of multi-dimensional material characteristic data, ensuring the comprehensiveness and systematicness of the material characteristic parameters; the optical lens geometric parameters and the lens material characteristic parameters are marked as the initial parameter information of the lens, and input into the computer-aided design software to construct the initial simulation model of the lens, realizing the organic combination of geometric parameters and material characteristic parameters, ensuring the integrity and accuracy of the simulation model.

[0010] Preferably, step S2 comprises the following steps: Step S21: placing a lens resolution test card within the imaging range of the optical lens, and recording the lens imaging resolution of the lens at a distance of 0.5-5 meters by shooting an image of the optical lens resolution test card; Step S22: placing the lens grayscale step test chart within the imaging range of the optical lens, setting a 5500-6500K test illumination interval within the imaging range, and recording the contrast of the bright and dark peaks of the grayscale step to obtain the lens contrast parameter; Step S23: placing the lens distortion test card within the imaging range of the optical lens, setting the positions of the central area, the diagonal area and the edge area within the imaging range, and measuring and recording the lens distortion values; Step S24: combining the lens imaging resolution, the lens contrast parameter and the lens distortion value into scene imaging parameters to obtain scene imaging parameters; and detecting the use scene environment parameters of the optical lens according to the scene imaging parameters to obtain scene environment parameters; Step S25: inputting the scene imaging parameters and the scene environment parameters into the initial simulation model of the lens, simulating the optical lens imaging process, and performing optical performance evaluation on the optical lens imaging process to obtain an optical performance evaluation result.

[0011] The present invention places a lens resolution test card within the imaging range of an optical lens and shoots an image of the test card at a distance of 0.5 meters to 5 meters, thereby accurately recording the imaging resolution of the lens. The method complies with the ISO12233 standard, and can comprehensively evaluate the resolution performance of the lens at different distances, thereby ensuring the accuracy and reliability of imaging quality data. A lens grayscale step test card is placed within the imaging range of the optical lens, and the brightness and darkness peak contrast of the grayscale step is recorded within a test illumination interval of 5500K to 6500K, thereby obtaining a lens contrast parameter. The method can effectively evaluate the contrast performance of the lens under different illumination conditions through the grayscale step test card, thereby ensuring the accuracy of the contrast parameter. A lens distortion test card is placed within the imaging range of the optical lens, and the distortion values ​​of a central area, a diagonal area, and an edge area are respectively measured. This method can comprehensively detect the distortion of the lens in different areas to ensure the accuracy and completeness of the distortion value; the lens imaging resolution, lens contrast parameters and lens distortion values ​​are combined to obtain complete scene imaging parameters, and the optical lens is further tested for the use scene environment parameters, realizing the integration of multi-dimensional imaging parameters and ensuring the comprehensiveness and systematicness of scene imaging parameters and scene environment parameters; the scene imaging parameters and scene environment parameters are input into the initial simulation model of the lens, the imaging process of the optical lens is simulated, and the optical performance is evaluated, which can accurately evaluate the performance of the optical lens in the actual use scenario and ensure the scientificity and reliability of the evaluation results.

[0012] Preferably, step S24 includes the following steps: Step S241: combining the lens imaging resolution, the lens contrast parameter and the lens distortion value into scene imaging parameters to obtain scene imaging parameters; Step S242: measuring the imaging environment temperature of the optical lens according to the scene imaging parameters, and recording the ambient temperature data proportionally every 1-10 minutes through the temperature sensor for 24 hours to obtain the ambient temperature range data; Step S243: measuring the humidity of the imaging environment of the optical lens according to the scene imaging parameters, and recording the environmental humidity data in proportion every 15-30 minutes through the humidity sensor for 48 hours to obtain the environmental humidity range data; Step S244: measuring the imaging environment light intensity of the optical lens according to the scene imaging parameters, and recording the ambient light intensity data proportionally every 30-60 minutes by means of a light intensity meter for 72 hours to obtain the ambient light intensity fluctuation value; Step S245: mapping the ambient temperature range data, the ambient humidity range data and the ambient light intensity fluctuation value to the scene imaging parameters to obtain the scene environment parameters.

[0013] The present invention combines the lens imaging resolution, lens contrast parameter and lens distortion value into scene imaging parameters to obtain scene imaging parameters. The process realizes the system integration of key parameters of optical lens imaging performance, ensures the integrity and consistency of imaging parameters, and provides basic data support for subsequent environmental parameter measurement; the imaging environment temperature of the optical lens is measured according to the scene imaging parameters, and the environmental temperature data is recorded proportionally every 1-10 minutes by a temperature sensor for 24 hours continuously, which can accurately measure the temperature variation range of the optical lens in the actual use scene, ensure the accuracy and timeliness of the environmental temperature data, and provide temperature-related imaging environment parameters for subsequent simulation; the imaging environment humidity of the optical lens is measured according to the scene imaging parameters, and the environmental temperature data is recorded proportionally every 15-30 minutes by a humidity sensor Recording environmental humidity data once for 48 hours continuously can comprehensively record the humidity variation range of the optical lens in the actual use scenario, ensuring the accuracy and completeness of the environmental humidity data; measuring the imaging environment light intensity of the optical lens according to the scene imaging parameters, and recording the environmental light intensity data proportionally every 30-60 minutes through the light intensity meter, and continuously recording for 72 hours, which can accurately measure the light intensity changes of the optical lens in the actual use scenario, ensuring the accuracy and stability of the environmental light intensity data; mapping the environmental temperature range data, environmental humidity range data and environmental light intensity fluctuation values ​​to the scene imaging parameters, realizing the organic combination of imaging parameters and environmental parameters, ensuring the comprehensiveness and systematicness of the scene environmental parameters, and improving the accuracy and reliability of the optical lens simulation analysis.

[0014] Preferably, step S25 includes the following steps: Step S251: starting the optical simulation software, creating an optical lens simulation project, and importing the initial lens simulation model into the optical lens simulation project; Step S252: input scene imaging parameters in the optical lens simulation project, set the lens aperture value to 25-35 mm, set the field of view angle to 3.5° to 10°, and set the visible light range to 486.13 nm-656.27 nm; Step S253: input scene environment parameters in the optical lens simulation project, set the ambient temperature to 10° to 40°, set the ambient humidity to 40%RH-60%RH, and set the light source type to natural light and LED light; Step S254: starting the optical lens imaging process of the optical simulation software, and continuously simulating the optical lens imaging process; fixing the lens imaging duration to 15-20 minutes, and dividing the lens imaging duration into imaging state positions every 10 seconds; Step S256: performing optical performance evaluation on the optical lens imaging process to obtain an optical performance evaluation result.

[0015] The present invention starts the optical simulation software and creates an optical lens simulation project, and imports the initial simulation model of the lens. This process ensures that the starting point of the simulation analysis is based on an accurate initial model, provides a reliable structural foundation for subsequent simulations, and improves the accuracy and efficiency of the simulation analysis; inputs the scene imaging parameters in the optical lens simulation project, sets the lens aperture value to 25-35mm, the field of view angle to 3.5° to 10°, and the visible light range to 486.13nm-656.27nm, which can fully cover the key parameter range of the optical lens in the actual use scenario, ensure that the simulation process is highly consistent with the actual imaging conditions, and provide an accurate imaging parameter environment for subsequent performance evaluation; inputs the scene environment parameters in the optical lens simulation project, sets the ambient temperature to 10° to 40°, the ambient humidity to 40%RH-60%RH, and the light source type to natural light and LE D light can fully simulate the use scenarios of optical lenses under different environmental conditions, ensure that the simulation process fully considers the impact of environmental factors on imaging performance, and improve the practicality and reliability of simulation results; start the optical lens imaging process of the optical simulation software, fix the lens imaging duration to 15-20 minutes, and divide the lens imaging duration into imaging state sites every 10 seconds. Through precise time control and state division, the continuity and integrity of the simulation are ensured, and the dynamic changes in the imaging process can be fully recorded, providing detailed time series data for subsequent performance evaluation; perform optical performance evaluation on the optical lens imaging process, which can comprehensively analyze the performance of the optical lens under simulation conditions and ensure the scientificity and objectivity of the evaluation results.

[0016] Preferably, step S256 includes the following steps: Step S2561: Start the ray tracing function of the simulation software and input the number of rays as 8000-10000; Step S2562: Detect the amount of light that the input light penetrates after passing through the optical lens to obtain the amount of light penetration; draw an optical modulation transfer function curve for the amount of light penetration to generate a modulation transfer function curve; Step S2563: Calculate the focusing conditions of the input light at different field angles, record the light focusing spot size and light focusing shape, and draw an optical spot diagram; Step S2564: performing wavefront error calculations on the input light based on the visible light wavelength ranges of 486.13 nm, 587.56 nm and 656.27 nm respectively to obtain wavefront error values; performing optical wavefront error mapping on the wavefront error values ​​to generate an optical wavefront error map; Step S2565: export the modulation transfer function curve, the optical point diagram and the optical wavefront error diagram as an optical performance evaluation image to obtain an optical performance evaluation result.

[0017] The present invention starts the ray tracing function of the simulation software and inputs 8000-10000 rays. This process can fully simulate the imaging process of the optical lens by tracing a large number of rays, ensuring the accuracy and reliability of ray tracing; detects the number of rays penetrated by the input light after passing through the optical lens, and draws the optical modulation transfer function curve. This process can accurately evaluate the light transmittance and imaging clarity of the optical lens. The modulation transfer function curve directly reflects the imaging quality of the lens at different frequencies, providing a key indicator for optical performance evaluation. The focusing of the input light at different field of view angles is calculated, the size and shape of the light focus spot are recorded, and the optical point diagram is drawn, which can comprehensively evaluate the focusing performance of the optical lens at different field of view angles. The point diagram directly shows the distribution of light focus, providing an important basis for analyzing the aberration and imaging quality of the lens. The wavefront error of the input light is calculated based on the visible light wavelength range of 486.13nm, 587.56nm and 656.27nm, and the optical wavefront error diagram is drawn, which can accurately evaluate the wavefront distortion of the optical lens at different wavelengths. The wavefront error diagram directly reflects the degree of optical distortion of the lens. The modulation transfer function curve, optical point diagram and optical wavefront error diagram are used to export the optical performance evaluation image, realizing the comprehensive evaluation of multiple optical performance indicators. Through graphical display, the imaging quality of the optical lens can be presented intuitively and comprehensively.

[0018] Preferably, step S3 comprises the following steps: Step S31: Setting standard performance indicators for the optical performance evaluation results to generate preset performance indicators; Step S32: comparing the optical performance evaluation result with the preset performance index, if the modulation transfer function curve does not meet the preset performance index, adjusting the aperture value of the optical lens within a parameter range of ±5 mm to obtain a lens aperture adjustment parameter; Step S33: comparing the optical performance evaluation result with the preset performance index, if the optical spot diagram does not meet the preset performance index, identifying the focus spot area to obtain the focus spot scattering area; adjusting the lens thickness of the optical lens within a parameter range of ±2mm according to the focus spot scattering area to obtain the lens thickness adjustment parameter; Step S34: comparing the optical performance evaluation result with the preset performance index, and if the optical wavefront error graph does not meet the preset performance index, recording that the wavefront error is out of range; adjusting the lens surface accuracy of the optical lens within the ±0.1λ parameter range according to the wavefront error being out of range, to obtain a lens accuracy adjustment parameter; Step S35: adjusting the optical parameters of the initial lens simulation model based on the lens aperture adjustment parameter, the lens thickness adjustment parameter and the lens precision adjustment parameter to obtain a lens simulation optimization model.

[0019] The present invention sets standard performance indicators for optical performance evaluation results, provides a clear benchmark for subsequent performance comparison, ensures the scientific nature and comparability of the evaluation results, and provides a target orientation for the optimization of the optical lens; compares the optical performance evaluation results with preset performance indicators, and if the modulation transfer function curve does not meet the preset performance indicators, adjusts the aperture value of the optical lens within a parameter range of ±5 mm to obtain the lens aperture adjustment parameter. The process can optimize the lens aperture in a targeted manner to ensure that the modulation transfer function curve meets the preset indicators; compare the optical performance evaluation results with the preset performance indicators. If the optical spot diagram does not meet the preset performance indicators, identify the focus spot area and obtain the focus spot scattering area; adjust the lens thickness of the optical lens according to the focus spot scattering area within the parameter range of ±2mm to obtain the lens thickness adjustment parameter, which can optimize the lens thickness in a targeted manner to ensure that the focus spot meets the preset indicators, thereby improving the focusing performance of the optical lens; compare the optical performance evaluation results with the preset performance indicators. If the optical wavefront error diagram does not meet the preset performance indicators, record the wavefront error out of range; adjust the lens surface accuracy of the optical lens according to the wavefront error out of range within the parameter range of ±0.1λ, which can optimize the lens surface accuracy in a targeted manner to ensure that the wavefront error meets the preset indicators, thereby improving the imaging quality of the optical lens; adjust the optical parameters of the initial simulation model of the lens based on the lens aperture adjustment parameters, lens thickness adjustment parameters and lens accuracy adjustment parameters, realize the coordinated optimization of multi-dimensional parameters, and ensure that the optical lens meets the preset performance indicators in terms of overall performance.

[0020] Preferably, step S4 comprises the following steps: Step S41: exporting the lens simulation optimization model from the computer-aided design software and converting the model format to obtain a lens simulation optimization model file, and loading the lens simulation optimization model file into the optical lens simulation device; Step S42: monitoring the actual reflection of the optical lens according to the optical lens simulation device, collecting the reflected light intensity, reflection spectrum and reflection angle in proportion every 1-5 seconds to obtain actual optical reflection data; Step S43: Evaluate the simulation effect of the lens simulation optimization model according to the actual optical reflection data to obtain simulation effect evaluation data; visualize the simulation effect evaluation data to generate an optical lens simulation analysis report.

[0021] The present invention exports the lens simulation optimization model from the computer-aided design software and converts the model format to obtain the lens simulation optimization model file, and loads the file into the optical lens simulation device. This process realizes the seamless connection of the simulation model from the virtual design to the actual device, ensures that the simulation optimization model can be verified in the actual optical device, and provides a basis for subsequent monitoring and analysis; actual reflection monitoring is performed according to the optical lens simulation device, and the reflected light intensity, reflection spectrum and reflection angle are collected in proportion every 1-5 seconds, and through high-frequency and multi-dimensional data collection, the reflection characteristics of the optical lens in actual use can be fully recorded to ensure the integrity and accuracy of the actual optical reflection data; the simulation effect of the lens simulation optimization model is evaluated according to the actual optical reflection data, and the evaluation data is visualized to generate an optical lens simulation analysis report; by comparing and analyzing the actual monitoring data with the simulation model, the accuracy and reliability of the simulation model can be intuitively evaluated.

[0022] In this specification, a simulation analysis system of an optical lens is provided, which is used to perform the simulation analysis method of the optical lens. The simulation analysis system of the optical lens includes: The optical lens parameter acquisition module is used to acquire the geometric parameters and material properties of the optical lens and record the initial parameter information of the lens; based on the initial parameter information of the lens, an initial simulation model of the lens is constructed through computer-aided design software; The simulation optical performance evaluation module is used to obtain characteristic data of the optical lens in the use scene, record the imaging requirements of the use scene and the temperature and humidity of the scene environment, so as to obtain the characteristic data of the use scene; input the characteristic data of the use scene into the initial simulation model of the lens, simulate the imaging process of the optical lens, and evaluate the optical performance of the imaging process of the optical lens to obtain the optical performance evaluation result; A simulation optical parameter adjustment module is used to adjust the initial simulation model of the lens according to the optical performance evaluation result. If the optical performance evaluation result does not meet the preset performance index, the optical parameters of the initial simulation model of the lens are adjusted to obtain a lens simulation optimization model; The simulation integrated analysis module is used to integrate the lens simulation optimization model into the optical lens simulation device to perform actual optical reflection monitoring to obtain actual optical reflection data; the lens simulation optimization model is simulated and analyzed according to the actual optical reflection data to generate an optical lens simulation analysis report.

[0023] The present invention collects the geometric parameters and material properties of the optical lens through the optical lens parameter acquisition module, and records the initial parameter information of the lens in detail, providing accurate and comprehensive basic data for the construction of the subsequent simulation model, and the accuracy of these data directly determines the reliability of the simulation model; based on the initial parameter information of the lens, the initial simulation model of the lens is constructed using computer-aided design software, realizing the rapid transformation from theoretical design to virtual model, providing an efficient platform for subsequent performance evaluation and optimization, and greatly shortening the optical lens research and development cycle. Through the simulation optical performance evaluation module, the characteristic data of the optical lens in the use scene, including imaging requirements and scene environment temperature and humidity, is obtained, ensuring that the conditions of the simulation are highly consistent with the actual use scene, and can effectively simulate the real working conditions of the optical lens in actual application, providing an accurate basis for subsequent performance evaluation; the use scene characteristic data is input into the initial simulation model of the lens, the optical lens imaging process is simulated, and the optical performance of the optical lens imaging process is evaluated, which can accurately evaluate the performance of the optical lens in a specific scene, and provide a clear direction for subsequent optimization and adjustment. Through the simulation optical parameter adjustment module, the initial simulation model of the lens is adjusted according to the optical performance evaluation results. If the optical performance evaluation results do not meet the preset performance indicators, the optical parameters of the initial simulation model of the lens are adjusted, which can solve the performance problems of the optical lens in specific scenarios in a targeted manner and ensure that the optimized model can meet the actual application requirements; through the adjustment of optical parameters, the lens simulation optimization model obtained can effectively improve the performance of the optical lens to meet the preset performance indicators; improve the imaging quality of the optical lens, enhance its adaptability under different environmental conditions, and lay a solid foundation for subsequent practical applications. Through the simulation integrated analysis module, the lens simulation optimization model is integrated into the optical lens simulation device for actual optical reflection monitoring, and the simulation optimization model is verified by actual monitoring data to ensure the effectiveness of the optimization results of the model in practical applications; according to the actual optical reflection data, the lens simulation optimization model is simulated and analyzed, which can record the performance of the optical lens in the actual use scenario in detail, provide a scientific basis for subsequent further optimization or actual production, and improve the overall efficiency and quality of optical lens research and development. Therefore, the present invention simulates and analyzes the lens geometric parameters and material properties of the optical lens usage scene characteristics through data processing technology, three-dimensional modeling technology and optical measurement technology, constructs a lens simulation optimization model, and evaluates the optical performance of the optical lens with specific usage scene characteristics, thereby improving the effect of simulation analysis of the optical lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the steps of a simulation analysis method for an optical lens; Figure 2 for Figure 1Detailed implementation steps of step S2 in the flowchart; Figure 3 for Figure 2 Detailed implementation steps of step S24; The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The technical method of the present invention is described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In addition, the accompanying drawings are only schematic illustrations of the present invention and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. The functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor methods and / or microcontroller methods.

[0027] It should be understood that, although the terms "first", "second", etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are used only to distinguish one unit from another unit. For example, without departing from the scope of the exemplary embodiments, the first unit may be referred to as the second unit, and similarly the second unit may be referred to as the first unit. The term "and / or" used herein includes any and all combinations of one or more of the listed associated items.

[0028] To achieve this, please refer to Figures 1 to 3 , a simulation analysis method for an optical lens, the method comprising the following steps: Step S1: Collecting geometric parameters and material properties of the optical lens and recording initial parameter information of the lens; constructing an initial simulation model of the lens through computer-aided design software based on the initial parameter information of the lens; Step S2: Acquire characteristic data of the optical lens in the usage scene, record the imaging requirements of the usage scene and the temperature and humidity of the scene environment, so as to obtain the usage scene characteristic data; input the usage scene characteristic data into the lens initial simulation model, simulate the optical lens imaging process, and perform optical performance evaluation on the optical lens imaging process to obtain the optical performance evaluation result; Step S3: adjusting the initial simulation model of the lens according to the optical performance evaluation result; if the optical performance evaluation result does not meet the preset performance index, adjusting the optical parameters of the initial simulation model of the lens to obtain a lens simulation optimization model; Step S4: Integrate the lens simulation optimization model into the optical lens simulation device to perform actual optical reflection monitoring to obtain actual optical reflection data; perform simulation analysis on the lens simulation optimization model according to the actual optical reflection data to generate an optical lens simulation analysis report.

[0029] The present invention collects geometric parameters and material properties of optical lenses and records the initial parameter information of the lenses in detail, providing accurate and comprehensive basic data for the construction of subsequent simulation models. The accuracy of these data directly determines the reliability of the simulation model. Based on the initial parameter information of the lenses, the initial simulation model of the lenses is constructed using computer-aided design software, which realizes the rapid transformation from theoretical design to virtual model, provides an efficient platform for subsequent performance evaluation and optimization, and greatly shortens the optical lens research and development cycle. The characteristic data of the optical lens in the use scene, including imaging requirements and scene environment temperature and humidity, is obtained to ensure that the simulation conditions are highly consistent with the actual use scene, and can effectively simulate the real working conditions of the optical lens in actual application, providing an accurate basis for subsequent performance evaluation; the use scene characteristic data is input into the initial simulation model of the lens, the optical lens imaging process is simulated, and the optical performance of the optical lens imaging process is evaluated, which can accurately evaluate the performance of the optical lens in a specific scene, and provide a clear direction for subsequent optimization and adjustment. Adjust the initial simulation model of the lens according to the results of the optical performance evaluation. If the results of the optical performance evaluation do not meet the preset performance indicators, adjust the optical parameters of the initial simulation model of the lens, which can solve the performance problems of the optical lens in specific scenarios in a targeted manner and ensure that the optimized model can meet the actual application requirements; through the adjustment of optical parameters, the obtained lens simulation optimization model can effectively improve the performance of the optical lens to meet the preset performance indicators; improve the imaging quality of the optical lens, enhance its adaptability under different environmental conditions, and lay a solid foundation for subsequent practical applications. Integrate the lens simulation optimization model into the optical lens simulation device for actual optical reflection monitoring, verify the simulation optimization model through actual monitoring data, and ensure the effectiveness of the optimization results of the model in practical applications; simulate and analyze the lens simulation optimization model according to the actual optical reflection data, which can record the performance of the optical lens in the actual use scenario in detail, provide a scientific basis for subsequent further optimization or actual production, and improve the overall efficiency and quality of optical lens research and development. Therefore, the present invention simulates and analyzes the lens geometric parameters and material properties of the optical lens usage scene characteristics through data processing technology, three-dimensional modeling technology and optical measurement technology, constructs a lens simulation optimization model, and evaluates the optical performance of the optical lens with specific usage scene characteristics, thereby improving the effect of simulation analysis of the optical lens.

[0030] In the embodiment of the present invention, reference Figure 1 FIG. 1 is a schematic diagram of a step flow chart of a simulation analysis method for an optical lens of the present invention. In this example, the simulation analysis method for the optical lens includes the following steps: Step S1: Collecting geometric parameters and material properties of the optical lens and recording initial parameter information of the lens; constructing an initial simulation model of the lens through computer-aided design software based on the initial parameter information of the lens; In an embodiment of the present invention, a high-precision optical measuring device, such as an optical lens measuring instrument (e.g., OTS200), is used to measure the geometric parameters of an optical lens. The geometric parameters that can be measured by the device include the radius of curvature, thickness, inner and outer diameters of the lens barrel, and dimensions of various components of the lens. In specific operations, the optical lens to be measured is placed on a workbench of the measuring device, and the position and posture of the lens are adjusted to align with the optical axis of the measuring device. Start the measuring device, and the device will automatically scan each surface of the lens to obtain its geometric parameters such as curvature radius and thickness, and store these parameter data in the database of the device; use material testing equipment, such as refractive index meter and hardness tester, to measure the material properties of the optical lens; the measured material characteristic parameters include refractive index, Abbe number, density, elastic modulus, Poisson's ratio, etc.; for the measurement of refractive index, place the lens material sample on the measuring table of the refractive index meter, and measure it according to the operating requirements of the equipment. The equipment will automatically calculate the refractive index of the material and record the result; for the measurement of other material properties such as hardness, follow the operating procedures of the corresponding testing equipment to obtain the corresponding parameter values; organize and record the collected geometric parameters and material characteristic parameters to form complete initial parameter information of the lens; construct the initial simulation model of the lens. Use professional computer-aided design software, such as Zemax. Zemax is software used for optical system design and simulation. It can accurately construct a three-dimensional model of the optical lens and perform various optical performance analyses; open the Zemax software and enter the Lens DataEditor (LDE) interface. In LDE, according to the recorded initial parameter information of the lens, the parameters of each lens are input in sequence, including material type, curvature radius, thickness, surface type, etc. For example, for a gradient refractive index lens, the material type is input as GRIN22, the curvature radius is -100mm, and the thickness is 3mm; for structural parts such as lens barrels and spacers, the corresponding parameters are also input in LDE according to the actual size and structure form; in Zemax, by setting the relative position and assembly relationship of each component, the lens, lens barrel, spacer and other components are assembled to form a complete optical lens model; during the assembly process, ensure that the alignment and positioning of each component meet the actual assembly requirements; for structural parts such as lens barrels, according to their actual structural forms, such as straight or stepped, corresponding modeling and assembly are performed; for spacers, according to their structural type and size parameters, they are placed between lenses to ensure that the spacing and centering accuracy between lenses meet the design requirements.

[0031] Step S2: Acquire characteristic data of the optical lens in the usage scene, record the imaging requirements of the usage scene and the temperature and humidity of the scene environment, so as to obtain the usage scene characteristic data; input the usage scene characteristic data into the lens initial simulation model, simulate the optical lens imaging process, and perform optical performance evaluation on the optical lens imaging process to obtain the optical performance evaluation result; In the embodiment of the present invention, professional optical measurement equipment is used to obtain characteristic data of the optical lens in the use scene, including key optical parameters of the lens such as focal length, field of view, distortion, resolution, etc. At the same time, environmental monitoring equipment is used to record the imaging requirements of the use scene and the temperature and humidity of the scene environment. For example, the ambient temperature and humidity data are obtained through the temperature and humidity sensor, and these data are sorted and recorded as the use scene characteristic data; then, the use scene characteristic data is input into the initial simulation model of the lens; in optical simulation software such as Zemax, by setting the system environmental parameters, the ambient temperature and humidity and other conditions are input. At the same time, according to the imaging requirements of the usage scenario, adjust the field of view angle, focal length and other parameters of the lens to ensure that the simulation model is consistent with the actual usage scenario; next, start the simulation, and use the ray tracing and optical performance analysis functions of the Zemax software to simulate the imaging process of the optical lens; during the simulation process, the software will calculate the propagation path of light in the lens and the imaging effect based on the input geometric parameters, material properties and usage scenario feature data; finally, perform an optical performance evaluation on the imaging process of the optical lens; calculate the optical performance indicators of the lens such as modulation transfer function (MTF), distortion, chromatic aberration, and field curvature through the analysis module of the Zemax software; and obtain the optical performance evaluation results based on the calculation results of these indicators.

[0032] Step S3: adjusting the initial simulation model of the lens according to the optical performance evaluation result; if the optical performance evaluation result does not meet the preset performance index, adjusting the optical parameters of the initial simulation model of the lens to obtain a lens simulation optimization model; In the embodiment of the present invention, according to the optical performance evaluation result, it is judged whether the performance of the optical lens meets the preset performance index. If the optical performance evaluation result does not meet the preset performance index, it is necessary to adjust the optical parameters of the initial simulation model of the lens to obtain the lens simulation optimization model; the specific operation process is as follows: in the Zemax software, the optical performance evaluation result is obtained through the analysis module, focusing on key indicators such as modulation transfer function (MTF), distortion, chromatic aberration, and field curvature. For example, if the MTF value is lower than the design requirement, or the distortion exceeds the allowable range, it indicates that the optical performance does not meet the standard; adjust the lens curvature radius: in the Lens Data Editor (LDE) of Zemax, select the lens surface to be adjusted and modify its curvature radius parameter. For example, if the distortion is large, the radius of curvature of the lens can be adjusted appropriately; for some lenses, increasing or decreasing their thickness appropriately can improve optical performance; enter a new thickness value in LDE to observe the impact on imaging quality; select a more suitable optical material based on indicators such as chromatic aberration; in Zemax, select new materials through the material library and update the material parameters in the model; adjust the field of view and focal length of the lens according to the imaging requirements of the usage scenario; modify the relevant parameters in Zemax; after completing the parameter adjustment, re-run Zemax's ray tracing and optical performance analysis functions to simulate the adjusted model. Evaluate MTF, distortion, chromatic aberration and other indicators again to ensure that the adjusted model can meet the preset performance indicators; if the adjusted model still does not meet the requirements, continue to adjust the relevant parameters until the optical performance evaluation results meet the preset performance indicators, and re-simulate and evaluate after each adjustment.

[0033] Step S4: Integrate the lens simulation optimization model into the optical lens simulation device to perform actual optical reflection monitoring to obtain actual optical reflection data; perform simulation analysis on the lens simulation optimization model according to the actual optical reflection data to generate an optical lens simulation analysis report.

[0034] In the embodiment of the present invention, a suitable light source, such as a halogen lamp or an LED light source, is selected to ensure that its spectral characteristics meet the wavelength range of the lens design, the light source is mounted on an optical platform, and its position is adjusted so that its optical axis is aligned with the optical axis of the lens; the lens simulation optimization model is mounted on the optical platform to ensure that the optical axis of the lens is aligned with the optical axis of the light source and the reflection detector. The position of the lens is adjusted so that its distance from the light source meets the design requirements; a highly sensitive reflection detector, such as a photomultiplier tube or a CCD detector, is selected and mounted on the optical platform to ensure that its optical axis is aligned with the optical axis of the lens. Adjust the position of the detector so that it can receive the light reflected from the lens; connect the output end of the reflection detector to the data acquisition and analysis module, such as an oscilloscope or a data acquisition card, to ensure that the module can collect the intensity distribution data of the reflected light in real time; turn on the light source and the reflection detector to ensure the normal operation of the system, and monitor the intensity distribution of the reflected light in real time through the data acquisition and analysis module; record the intensity distribution data of the reflected light, including information such as spectral characteristics, intensity distribution, and reflection angle, and save these data in CSV or TXT format; in Zemax optical simulation software, select "Import Data" from the "File" menu to import the actual optical reflection data into the software, and adjust the relevant parameters in the lens model according to the actual optical reflection data; for example, adjust the refractive index of the lens according to the spectral characteristics of the reflected light; adjust the surface shape of the lens according to the intensity distribution; adjust the material properties of the lens according to the reflection angle; in Zemax, select the "Ray Tracing" function in the "Analysis" menu to perform ray tracing analysis on the adjusted lens model; calculate the optical performance indicators of the lens, such as modulation transfer function (MTF), distortion, chromatic aberration, etc. through the analysis module of Zemax. The specific operations are: select "MTF Analysis" in the "Analysis" menu to calculate the MTF curve of the lens; select "Distortion Analysis" in the "Analysis" menu to calculate the distortion of the lens; select "Chromatic Aberration Analysis" in the "Analysis" menu to calculate the chromatic aberration of the lens; in Zemax, select the "Generate Report" function in the "Report" menu to generate an optical lens simulation analysis report; the report records in detail the optical performance indicators of the lens, and the comparative analysis of the actual optical reflection data and the simulated data; the specific steps are: select "System Parameter Report" in the "Report" menu to record the basic parameters of the lens; select "Aberration Analysis Report" in the "Report" menu to record performance indicators such as MTF, distortion, and chromatic aberration; select "Data Comparison Report" in the "Report" menu to record the comparative analysis of the actual optical reflection data and the simulated data; export the generated report to PDF or Excel format for further analysis and archiving.

[0035] Preferably, step S1 comprises the following steps: Step S11: using laser scanning technology, starting from the center of the lens, gradually scanning outwards with a step distance of 0.1-0.2 mm, and recording scanning data to obtain the diameter of the optical lens; Step S12: using a contact measuring tool, starting from the edge of the lens, gradually measuring toward the center with a step distance of 0.05-0.08 mm, and recording the measurement data to obtain the thickness of the optical lens; Step S13: using a coordinate measuring machine, placing the optical lens on a measuring platform, and measuring the offset between the center of the lens and the theoretical center to obtain the center offset of the optical lens; Step S14: combining the optical lens diameter, the optical lens thickness and the optical lens center offset into lens geometric parameters to obtain the optical lens geometric parameters.

[0036] In the embodiment of the present invention, a high-precision laser scanner is selected to ensure that its scanning accuracy meets the optical lens measurement requirements; the optical lens is placed on the working platform of the laser scanner to ensure that the center of the lens is aligned with the scanning path of the scanner; in the control software of the laser scanner, the scanning step distance is set to 0.1 mm, and the scanning range covers the entire diameter of the lens; the scanning is started, and the laser scanner starts from the center position of the lens and gradually scans outward to record the intensity and position information of the reflected light; after the scanning is completed, the scanning data is analyzed by the data processing software to calculate the diameter of the optical lens and save the result as a data file; a high-precision contact measuring tool, such as a micrometer or a contact probe measuring instrument, is selected; the optical lens is placed on the measuring platform to ensure that the edge position of the lens is aligned with the contact point of the measuring tool; the step distance of the measuring tool is set to 0.05 mm, and the measuring path is gradually from the edge of the lens to the center; the measuring tool is started, and the measurement is gradually measured from the edge of the lens to the center, and the thickness data of each contact point is recorded; after the measurement is completed, the measurement data is analyzed by the data processing software to obtain The thickness of the optical lens is measured and the result is saved as a data file; a high-precision coordinate measuring instrument is selected, such as a three-dimensional coordinate measuring machine (CMM); the optical lens is placed on the measuring platform of the coordinate measuring instrument to ensure that the center of the lens is aligned with the coordinate origin of the platform; in the control software of the coordinate measuring instrument, the measurement parameters, including the number and distribution of measurement points, are set; the coordinate measuring instrument is started, and the lens is measured at multiple points by a high-precision probe, and the offset between the center of the lens and the theoretical center is recorded; after the measurement is completed, the measurement data is analyzed by the data processing software, the center offset of the optical lens is calculated, and the result is saved as a data file; in the data processing software, a new data file is created, and the optical lens diameter, thickness and center offset data obtained in step S11, step S12 and step S13 are respectively imported into the corresponding fields; the data are integrated into a complete optical lens geometry parameter file through the geometry parameter merging function of the data processing software; the merged geometry parameter file is exported to a standard format (such as CSV or TXT) for subsequent optical lens simulation analysis.

[0037] Preferably, step S1 further comprises the following steps: Step S15: using a densitometer, immersing the material of the optical lens in a liquid of known density, and calculating the density of the lens material by the buoyancy principle; using an Abbe refractometer, measuring the refractive index of the material of the optical lens, and measuring the refractive index of the lens material under a sodium lamp with a wavelength of 489.3-589.3 nanometers; Step S16: placing the material of the optical lens in a constant temperature box, and measuring the dimensional change of the material at 20 degrees Celsius, 40 degrees Celsius, and 60 degrees Celsius, respectively, to obtain the thermal expansion coefficient of the lens material; Step S17: combining the lens material density, the lens material refractive index and the lens material thermal expansion coefficient to obtain lens material characteristic parameters; Step S18: Mark the optical lens geometric parameters and lens material characteristic parameters as lens initial parameter information, and input the lens initial parameter information into computer-aided design software to construct an initial simulation model of the lens.

[0038] In an embodiment of the present invention, a densitometer is used to immerse an optical lens material sample in a liquid of known density (such as water or an alcohol solution); based on the principle of buoyancy, the density of the material is calculated by measuring the weight of the material sample in the air and the weight of the material sample in the liquid; the specific calculation method is that the material density is equal to the weight of the material sample in the air divided by (the weight of the material sample in the air minus the weight of the material sample in the liquid), and the calculated material density value is recorded; an Abbe refractometer is used to place the optical lens material sample on a measuring prism, and the refractometer is placed in a constant temperature environment (such as 20.0±0.1°C) to ensure measurement accuracy; the achromatic compensator of the refractometer is adjusted to make the colored light bands in the eyepiece disappear to ensure measurement accuracy; and the refractive index value on the refractometer is read under a sodium lamp with a wavelength of 489.3-589.3 nanometers. It is usually necessary to measure multiple times and take the average value to improve the accuracy; place the optical lens material sample in a constant temperature box, prepare high-precision dimension measurement tools, such as laser interferometer or high-precision micrometer; set the temperature of the constant temperature box to 20 degrees Celsius, 40 degrees Celsius and 60 degrees Celsius respectively; at each temperature point, use the dimension measurement tool to measure the dimensional change of the material sample; record the dimensional data of the material at each temperature point; calculate the thermal expansion coefficient of the material based on the dimensional change and temperature change; specifically, the thermal expansion coefficient is equal to the length change of the material at a certain temperature divided by (the length of the material at 20 degrees Celsius multiplied by the temperature difference), and record the calculated thermal expansion coefficient value; The material density, refractive index and thermal expansion coefficient data measured in steps S15 and S16 are organized into a data file, and these parameters are merged into a complete lens material characteristic parameter file using data processing software (such as Excel or MATLAB), and the merged parameter file is saved in a CSV or TXT format; the lens material characteristic parameters obtained in step S17 are marked as lens initial parameter information, and the lens initial parameter information is input into a computer-aided design software (such as Zemax or SolidWorks); in the computer-aided design software, an initial simulation model of the lens is constructed according to the input geometric parameters and material characteristic parameters.

[0039] As an example of the present invention, refer to Figure 2 As shown, in this example, step S2 includes: Step S21: placing a lens resolution test card within the imaging range of the optical lens, and recording the lens imaging resolution of the lens at a distance of 0.5-5 meters by shooting an image of the optical lens resolution test card; Step S22: placing the lens grayscale step test chart within the imaging range of the optical lens, setting a 5500-6500K test illumination interval within the imaging range, and recording the contrast of the bright and dark peaks of the grayscale step to obtain the lens contrast parameter; Step S23: placing the lens distortion test card within the imaging range of the optical lens, setting the positions of the central area, the diagonal area and the edge area within the imaging range, and measuring and recording the lens distortion values; Step S24: combining the lens imaging resolution, the lens contrast parameter and the lens distortion value into scene imaging parameters to obtain scene imaging parameters; and detecting the use scene environment parameters of the optical lens according to the scene imaging parameters to obtain scene environment parameters; Step S25: inputting the scene imaging parameters and the scene environment parameters into the initial simulation model of the lens, simulating the optical lens imaging process, and performing optical performance evaluation on the optical lens imaging process to obtain an optical performance evaluation result.

[0040] In the embodiment of the present invention, the lighting conditions of the test environment are ensured to comply with the ISO7589 standard, and "daylight" or "tungsten lamp" is used as the light source. The lighting should be uniform to avoid direct irradiation to the lens or reflection. The lens resolution test card (such as the ISO12233 standard test card) is placed within the imaging range of the optical lens, and the test card is parallel to the focal plane of the lens, and the horizontal thick frame is parallel to the horizontal frame of the picture. According to the ISO12233 standard, the camera factory settings are used as much as possible for shooting. If the settings need to be changed, it should be noted in the test report. Images of the resolution test card are taken at a distance range of 0.5 meters to 5 meters. After each shooting, the resolution of the image is analyzed using special software (such as HYRes) to record the imaging resolution of the lens at different distances. A test lighting interval of 5500K-6500K is set within the imaging range to ensure uniform lighting. A lens grayscale step test card (such as a 48 grayscale test card) is placed within the imaging range of the optical lens. An image of the grayscale step test card is taken, and the brightness and darkness peak contrast of the grayscale step is measured using image analysis software. The calculation formula of the contrast amount is: Contrast = Bright Peak + Dark Peak Bright Peak − Dark Peak, and the obtained lens contrast parameters are recorded; a lens distortion test card (such as a grid distortion test card) is placed within the imaging range of the optical lens, and the central area, diagonal area and edge area positions are respectively set within the imaging range, and an image of the distortion test card is captured; the image is analyzed using distortion analysis software (such as a distortion correction tool based on Zhang calibration), and the distortion values ​​of the lens in different areas are measured and recorded; the lens imaging resolution obtained in step S21, the lens contrast parameter obtained in step S22, and the lens distortion value obtained in step S23 are combined to form scene imaging parameters; according to the scene imaging parameters, the optical lens is tested for the use scene environment parameters. The detection content includes ambient light intensity, temperature, humidity, etc., and these parameters are recorded as scene environment parameters; the scene imaging parameters and scene environment parameters obtained in step S24 are input into the initial simulation model of the lens; in computer-aided design software (such as Zemax), the imaging process of the optical lens is simulated according to the input parameters; through the analysis module of the simulation software, the optical performance of the optical lens imaging process is evaluated, and the performance indicators such as modulation transfer function (MTF), distortion, chromatic aberration, etc. are calculated, the evaluation results are recorded, and an optical performance evaluation report is obtained.

[0041] As an example of the present invention, refer to Figure 3 As shown, in this example, step S24 includes: Step S241: combining the lens imaging resolution, the lens contrast parameter and the lens distortion value into scene imaging parameters to obtain scene imaging parameters; Step S242: measuring the imaging environment temperature of the optical lens according to the scene imaging parameters, and recording the ambient temperature data proportionally every 1-10 minutes through the temperature sensor for 24 hours to obtain the ambient temperature range data; Step S243: measuring the humidity of the imaging environment of the optical lens according to the scene imaging parameters, and recording the environmental humidity data in proportion every 15-30 minutes through the humidity sensor for 48 hours to obtain the environmental humidity range data; Step S244: measuring the imaging environment light intensity of the optical lens according to the scene imaging parameters, and recording the ambient light intensity data proportionally every 30-60 minutes by means of a light intensity meter for 72 hours to obtain the ambient light intensity fluctuation value; Step S245: mapping the ambient temperature range data, the ambient humidity range data and the ambient light intensity fluctuation value to the scene imaging parameters to obtain the scene environment parameters.

[0042] In an embodiment of the present invention, the lens imaging resolution, lens contrast parameter and lens distortion value are organized into a data file, ensuring that the data file contains the name, value and measurement conditions of each parameter; and these parameters are merged into a complete scene imaging parameter file using data processing software (such as Excel or MATLAB). The specific operation is as follows: create a new worksheet in Excel, list the resolution, contrast and distortion values ​​in different columns, and mark the corresponding test conditions. Save the merged parameter file in the format of CSV or TXT; select a high-precision temperature sensor, such as a platinum resistance temperature sensor, and place the temperature sensor in the imaging environment of the optical lens to ensure that the sensor can accurately measure the ambient temperature. Set the sampling interval of the sensor to 5 minutes, that is, record the temperature data every 5 minutes; and continuously record the ambient temperature data for 24 hours. During the recording process, ensure that the sensor works stably to avoid external interference. Save the recorded temperature data as a data file in the format of CSV or TXT; select a high-precision humidity sensor, such as a capacitive humidity sensor, and place the humidity sensor in the imaging environment of the optical lens to ensure that the sensor can accurately measure the ambient humidity. Set the sampling interval of the sensor to 20 minutes, that is, record humidity data every 20 minutes; record environmental humidity data for 48 hours continuously. During the recording process, ensure that the sensor works stably and avoid external interference; save the recorded humidity data as a data file in the format of CSV or TXT; select a high-precision light intensity meter, such as the TSL2561 light intensity sensor, and place the light intensity meter in the imaging environment of the optical lens to ensure that the sensor can accurately measure the ambient light intensity. Set the sampling interval of the sensor to 45 minutes, that is, record light intensity data every 45 minutes; record environmental light intensity data for 72 hours continuously. During the recording process, ensure that the sensor works stably and avoid external interference. The recorded light intensity data is saved as a data file in the format of CSV or TXT; the ambient temperature range data obtained in step S242, the ambient humidity range data obtained in step S243, and the ambient light intensity fluctuation value obtained in step S244 are sorted into a data file; these parameters are mapped with scene imaging parameters using data processing software (such as Excel or MATLAB); the specific mapping method is: according to the variation range of ambient temperature, humidity and light intensity, the relevant parameters in the scene imaging parameters are adjusted to reflect the influence of environmental changes on imaging quality; the mapped parameter file is saved in the format of CSV or TXT as the scene environment parameters.

[0043] Preferably, step S25 includes the following steps: Step S251: starting the optical simulation software, creating an optical lens simulation project, and importing the initial lens simulation model into the optical lens simulation project; Step S252: input scene imaging parameters in the optical lens simulation project, set the lens aperture value to 25-35 mm, set the field of view angle to 3.5° to 10°, and set the visible light range to 486.13 nm-656.27 nm; Step S253: input scene environment parameters in the optical lens simulation project, set the ambient temperature to 10° to 40°, set the ambient humidity to 40%RH-60%RH, and set the light source type to natural light and LED light; Step S254: starting the optical lens imaging process of the optical simulation software, and continuously simulating the optical lens imaging process; fixing the lens imaging duration to 15-20 minutes, and dividing the lens imaging duration into imaging state positions every 10 seconds; Step S256: performing optical performance evaluation on the optical lens imaging process to obtain an optical performance evaluation result.

[0044] In an embodiment of the present invention, start the optical simulation software (such as Zemax or SolidWorks) and enter the main interface of the software; select the option of "New Project" or "Create New Simulation Project" in the software to create a new optical lens simulation project. After the project is created, select the function option of "Import Model" or "Import Simulation Model"; locate the file path storing the initial simulation model of the lens through the file browser, and select the corresponding file (such as .ZMX or .SLDASM format file); click the "Import" button to import the initial simulation model of the lens into the created optical lens simulation project, and ensure that the model is correctly loaded and displayed in the project interface; find the option of "Imaging Parameter Setting" or "Scene Parameter Setting" in the project setting interface of the optical simulation software; enter the lens aperture value and set its range to 25 mm to 35 mm. The specific operation is to enter the minimum value of 25 mm and the maximum value of 35 mm in the corresponding input box; set the field of view angle and set its range to 3.5 degrees to 10 degrees. In the field of view angle setting area, enter the minimum field of view angle of 3.5 degrees and the maximum field of view angle of 10 degrees; set the visible light range and set its wavelength range to 486.13 nanometers to 656.27 nanometers. In the visible light range setting area, enter the minimum wavelength of 486.13 nanometers and the maximum wavelength of 656.27 nanometers; after confirming that the settings are completed, click the "Apply" or "Save Settings" button to make the entered scene imaging parameters effective; in the project setting interface of the optical simulation software, find the "Environmental Parameter Settings" or "Scene Environment Settings" options; enter the ambient temperature range and set it to 10 degrees Celsius to 40 degrees Celsius. In the ambient temperature setting area, enter the minimum temperature of 10 degrees Celsius and the maximum temperature of 40 degrees Celsius; enter the ambient humidity range and set it to 40% relative humidity (RH) to 60% relative humidity (RH); in the ambient humidity setting area, enter the minimum humidity of 40%RH and the maximum humidity of 60%RH; set the light source type and select "natural light" and "LED light" as the light source options. In the light source type setting area, check the "natural light" and "LED light" options; after confirming the settings, click the "Apply" or "Save Settings" button to make the input scene environment parameters effective; in the simulation control interface of the optical simulation software, find the "Start Simulation" or "Start Simulation" button; click this button to start the simulation of the optical lens imaging process; in the simulation setting interface, find the "Imaging Duration Setting" or "Simulation Time Setting" option; fix the lens imaging duration to 15 minutes to 20 minutes. In the imaging duration setting area, enter the minimum duration of 15 minutes and the maximum duration of 20 minutes; set the imaging state site division, and record the imaging state of the lens imaging duration every 10 seconds.In the setting area of ​​the imaging state position division, enter the time interval as 10 seconds; after confirming the settings, click the "Apply" or "Start Simulation" button to start the continuous simulation of the optical lens imaging process; in the simulation control interface of the optical simulation software, find the "Optical Performance Evaluation" or "Imaging Quality Evaluation" option; click this option to start the optical performance evaluation function; the software will automatically evaluate the simulated optical lens imaging process, calculate and record various optical performance indicators, such as modulation transfer function (MTF), distortion, chromatic aberration, etc.; after the evaluation is completed, the software will generate an optical performance evaluation result report, which contains the specific values ​​and charts of various performance indicators; view and record the optical performance evaluation results, and save the evaluation report.

[0045] Preferably, step S256 includes the following steps: Step S2561: Start the ray tracing function of the simulation software and input the number of rays as 8000-10000; Step S2562: Detect the amount of light that the input light penetrates after passing through the optical lens to obtain the amount of light penetration; draw an optical modulation transfer function curve for the amount of light penetration to generate a modulation transfer function curve; Step S2563: Calculate the focusing conditions of the input light at different field angles, record the light focusing spot size and light focusing shape, and draw an optical spot diagram; Step S2564: performing wavefront error calculations on the input light based on the visible light wavelength ranges of 486.13 nm, 587.56 nm and 656.27 nm respectively to obtain wavefront error values; performing optical wavefront error mapping on the wavefront error values ​​to generate an optical wavefront error map; Step S2565: export the modulation transfer function curve, the optical point diagram and the optical wavefront error diagram as an optical performance evaluation image to obtain an optical performance evaluation result.

[0046] In an embodiment of the present invention, optical simulation software (such as Zemax or SPEOS) is started to enter the simulation project interface; the "ray tracing" function module is found in the simulation software, which is usually located in the "analysis" or "simulation settings" menu; in the ray tracing setting interface, the number of rays is input as 8000 to 10000; the specific operation is to input a minimum value of 8000 and a maximum value of 10000 in the ray number setting box; after confirming the settings, click the "start tracing" or "run simulation" button to start the ray tracing function; after the ray tracing is completed, the simulation software will automatically count the number of rays penetrated by the input light after passing through the optical lens; in the analysis module of the simulation software, the "modulation transfer function (MTF) analysis" function is selected; the parameters of the MTF analysis are set, including the field of view angle range (3.5° to 10°) and the wavelength range (486.13nm to 656.27nm); the software will calculate the MTF value based on the ray tracing results and generate a modulation transfer function curve. The curve shows the MTF value at different spatial frequencies, reflecting the imaging quality of the optical system; in the simulation software, select the "spot diagram analysis" function; set the parameters of the spot diagram, including the field of view angle range (3.5° to 10°) and the wavelength range (486.13nm to 656.27nm); the software will calculate the focusing of the input light at different field of view angles and record the size and shape of the light focus spot; based on the calculation results, generate an optical spot diagram to display the distribution of light on the imaging plane. The spot diagram can intuitively reflect the imaging quality of the optical system; in the simulation software, select the "wavefront analysis" function and set the parameters of the wavefront analysis, including the wavelength range (486.13nm, 587.56nm and 6 56.27nm); the software will calculate the wavefront error of the input light at the above wavelengths respectively to obtain the wavefront error value; according to the wavefront error value, an optical wavefront error map is generated. The wavefront error map displays the wavefront distortion in the form of a contour map or a heat map, which intuitively reflects the imaging quality of the optical system; in the analysis result interface of the simulation software, select the "Export Results" or "Save Analysis Image" function, select the image type to be exported, including the modulation transfer function curve, the optical point array diagram and the optical wavefront error map, set the export format, usually PNG, JPEG or PDF format, click the "Export" or "Save" button to export the above images as optical performance evaluation results, and the exported images can be used for further analysis and reporting.

[0047] Preferably, step S3 comprises the following steps: Step S31: Setting standard performance indicators for the optical performance evaluation results to generate preset performance indicators; Step S32: comparing the optical performance evaluation result with the preset performance index, if the modulation transfer function curve does not meet the preset performance index, adjusting the aperture value of the optical lens within a parameter range of ±5 mm to obtain a lens aperture adjustment parameter; Step S33: comparing the optical performance evaluation result with the preset performance index, if the optical spot diagram does not meet the preset performance index, identifying the focus spot area to obtain the focus spot scattering area; adjusting the lens thickness of the optical lens within a parameter range of ±2mm according to the focus spot scattering area to obtain the lens thickness adjustment parameter; Step S34: comparing the optical performance evaluation result with the preset performance index, and if the optical wavefront error graph does not meet the preset performance index, recording that the wavefront error is out of range; adjusting the lens surface accuracy of the optical lens within the ±0.1λ parameter range according to the wavefront error being out of range, to obtain a lens accuracy adjustment parameter; Step S35: adjusting the optical parameters of the initial lens simulation model based on the lens aperture adjustment parameter, the lens thickness adjustment parameter and the lens precision adjustment parameter to obtain a lens simulation optimization model.

[0048] In an embodiment of the present invention, in an optical simulation software (such as Zemax), enter the "performance evaluation" or "analysis" module, in which the "standard performance index setting" or "performance index editing" function is found; according to the design requirements of the optical lens, the standard performance index of the modulation transfer function (MTF) is input, for example, the MTF value at a specific spatial frequency (such as 10 line pairs / mm) should be greater than 0.5; the standard performance index of the optical spot diagram is input, for example, the radius of the focused spot should be less than a certain specific value (such as 10 microns); the standard performance index of the optical wavefront error is input, for example, the wavefront error should be less than =λ / 4 (λ is the working wavelength); click the "Save" or "Apply" button to generate the preset performance indicators; in the optical simulation software, enter the "Performance Comparison" or "Evaluation Result Analysis" function; compare the modulation transfer function curve in the optical performance evaluation result with the preset performance indicators. If the modulation transfer function curve does not meet the preset performance indicators, enter the "Parameter Adjustment" or "Optimization Settings" function; select "Lens Aperture Value" as the adjustment parameter and set the adjustment range to ±5mm. The software will automatically adjust the lens aperture value according to the preset optimization algorithm (such as global optimization or automatic optimization) to make The MTF curve meets the preset performance index; record the adjusted lens aperture value as the lens aperture adjustment parameter; in the optical simulation software, enter the "Performance Comparison" or "Evaluation Result Analysis" function, compare the optical spot diagram in the optical performance evaluation result with the preset performance index, if the optical spot diagram does not meet the preset performance index, identify the focus spot area and determine the scattering of the focus spot; according to the scattering area of ​​the focus spot, enter the "Parameter Adjustment" or "Optimization Settings" function, select "Lens Thickness" as the adjustment parameter, and set the adjustment range to ±2mm; the software will automatically adjust the lens thickness according to the preset optimization algorithm so that the optical spot diagram meets the preset performance index; record the adjusted lens thickness value as the lens thickness adjustment parameter; in the optical simulation software, enter the "Performance Comparison" or "Evaluation Result Analysis" function, compare the optical wavefront error diagram in the optical performance evaluation result with the preset performance index, if the optical wavefront error diagram does not meet the preset performance index, record the situation where the wavefront error is out of range; according to the wavefront error being out of range, enter the "Parameter Adjustment" or "Optimization Settings" function, select "Lens Surface Accuracy" as the adjustment parameter, and set the adjustment range to ±0.1λ; the software will automatically adjust the lens surface accuracy according to the preset optimization algorithm so that the optical wavefront error diagram meets the preset performance indicators, and record the adjusted lens surface accuracy value as the lens accuracy adjustment parameter; in the optical simulation software, enter the "model adjustment" or "parameter update" function; according to the lens aperture adjustment parameters, lens thickness adjustment parameters and lens accuracy adjustment parameters obtained in steps S32 to S34, update the initial lens simulation model, enter the adjusted lens aperture value, lens thickness value and lens surface accuracy value in the model adjustment interface, click the "Update Model" or "Apply Adjustment" button to complete the optical parameter adjustment of the initial lens simulation model, save the adjusted model as the lens simulation optimization model, and use it for subsequent simulation analysis and design optimization. .

[0049] It is particularly important that step S31 includes the following steps: Step S311: determining the modulation transfer function index of the modulation transfer function curve, setting the modulation transfer function value in the range of 0.3-0.5 as the maximum field of view modulation transfer function value; setting the modulation transfer function value greater than 0.5 as the center field of view modulation transfer function value; Step S312: determining the optical spot array index of the optical spot array diagram, setting the focus spot diameter of the central field of view to be less than 10 microns; setting the focus spot diameter of the maximum field of view to be in the range of 10-15 microns; Step S313: determining an optical wavefront error index for the optical wavefront error graph, setting the RMS wavefront error of the optical wavefront error index to be less than 0.1 wavelength; and setting the PV wavefront error to be less than 0.5 wavelength.

[0050] In an embodiment of the present invention, enter the optical simulation software: start the optical simulation software (such as Zemax), open the existing optical lens simulation project; modulation transfer function curve analysis: in the simulation software, select the "modulation transfer function (MTF) analysis" function, which is usually located in the "analysis" or "performance evaluation" module; set the MTF value of the modulation transfer function value in the range of 0.3-0.5 as the maximum field of view modulation transfer function value; in the MTF analysis interface, set the field of view angle range (such as the maximum field of view angle), and mark the area with the MTF value between 0.3-0.5; set the MTF value of the modulation transfer function value greater than 0.5 as the center field of view modulation transfer function value; also in the MTF analysis interface, set the center field of view angle (such as 0°), and mark the area with the MTF value greater than 0.5; after completing the settings, click the "Save" or "Apply" button to save these index parameters as preset performance indicators; enter the optical point array diagram analysis function: in the simulation software, select "Point Diagram Analysis". "Point diagram analysis" function, usually located in the "Analysis" or "Performance Evaluation" module; set the focus spot diameter of the central field of view to less than 10 microns, select the central field of view angle (such as 0°) in the point diagram analysis interface, and set the focus spot diameter threshold to less than 10 microns; set the focus spot diameter of the maximum field of view to be in the range of 10-15 microns, select the maximum field of view angle, and set the focus spot diameter threshold range to 10-15 microns; enter the optical wavefront error analysis function: in the simulation software, select the "wavefront error analysis" function, set the RMS wavefront error of the optical wavefront error index to less than 0.1 wavelength, and set the threshold of the RMS wavefront error to less than 0.1 wavelength in the wavefront error analysis interface; set the PV wavefront error to less than 0.5 wavelength, and set the threshold of the PV (peak and valley) wavefront error to less than 0.5 wavelength; the above steps complete the setting of the optical performance evaluation index through the MTF analysis, point diagram analysis and wavefront error analysis functions of the optical simulation software.

[0051] Preferably, step S4 comprises the following steps: Step S41: exporting the lens simulation optimization model from the computer-aided design software and converting the model format to obtain a lens simulation optimization model file, and loading the lens simulation optimization model file into the optical lens simulation device; Step S42: monitoring the actual reflection of the optical lens according to the optical lens simulation device, collecting the reflected light intensity, reflection spectrum and reflection angle in proportion every 1-5 seconds to obtain actual optical reflection data; Step S43: Evaluate the simulation effect of the lens simulation optimization model according to the actual optical reflection data to obtain simulation effect evaluation data; visualize the simulation effect evaluation data to generate an optical lens simulation analysis report.

[0052] In an embodiment of the present invention, in optical simulation software such as Zemax, open an optimized optical lens simulation project, select the "Export" option in the "File" menu, and export the lens simulation optimization model to a general format (such as STL or STEP format); in the export settings, select appropriate units (such as millimeters) and precision to ensure that the model details meet the requirements; load the exported lens simulation optimization model file (such as STL or STEP format) into an optical lens simulation device, and in the software interface of the simulation device, select the "Load Model" or "Import Model" function to import the lens simulation optimization model file; ensure that the model is correctly loaded and displayed in the interface of the simulation device, adjust the alignment and position of the model to match it with the optical system of the simulation device; in the optical lens simulation device, set the parameters of reflection monitoring, including reflected light intensity, reflection spectrum and reflection angle; set the sampling interval to 1-5 seconds, and collect the reflected light intensity, reflection spectrum and reflection angle in proportion every 1-5 seconds; ensure that the monitoring equipment (such as a spectrometer, a light intensity detector) is consistent with the simulation device. The real device is correctly connected and the equipment is calibrated to ensure the accuracy of the measurement results; the optical lens simulation device is started to perform actual reflection monitoring. During the monitoring process, the simulation device will automatically collect data on reflected light intensity, reflection spectrum and reflection angle according to the set sampling interval; the collected data is saved as a data file in the format of CSV or TXT; in the optical simulation software, the collected actual optical reflection data is imported into the software, and the actual optical reflection data is compared and analyzed with the expected reflection data of the simulation model; according to the light intensity, spectrum and angle information of the actual reflection data, the accuracy of the lens simulation optimization model is evaluated to obtain simulation effect evaluation data; data visualization tools (such as Matplotlib or Excel) are used to visualize the simulation effect evaluation data, and graphs of reflected light intensity, reflection spectrum and reflection angle are drawn to intuitively show the comparison between the actual reflection data and the simulation model, and an optical lens simulation analysis report is generated, which contains graphs and data analysis results, and records the conclusions of the simulation effect evaluation in detail.

[0053] It is particularly important that step S43 includes the following steps: Step S431: setting a reflected light intensity assessment threshold, setting the reflected light intensity of the central field of view to be not less than 70%, and setting the reflected light intensity of the maximum field of view to be not less than 65%; calculating the deviation between the light intensity of the actual optical reflection data and the reflected light intensity assessment threshold, and recording the reflected light intensity deviation value; Step S432: setting a reflection spectrum evaluation threshold, setting the reflection spectrum peak value at a wavelength of 486.13nm to be no less than 75%, and setting the reflection spectrum peak value at a wavelength of 656.27nm to be no less than 80%; calculating the deviation between the spectrum of the actual optical reflection data and the reflection spectrum evaluation threshold, and recording the reflection spectrum deviation value; Step S433: setting a reflection angle assessment threshold, setting a central field reflection angle distribution range of ±2°, and setting a maximum field reflection angle distribution range of ±3°; calculating a deviation between the angle of the actual optical reflection data and the reflection angle assessment threshold, and recording the reflection angle deviation value; Step S434: Calculate the optical standard deviation of the lens simulation optimization model based on the reflected light intensity deviation value, the reflected spectrum deviation value, and the reflected angle deviation value to obtain optical standard deviation data; and evaluate the simulation effect level of the optical standard deviation data to obtain simulation effect evaluation data.

[0054] Step S435: Visualize the simulation effect evaluation data and generate an optical lens simulation analysis report.

[0055] In the embodiment of the present invention, in the optical simulation software (such as Zemax or SPEOS), enter the "Performance Evaluation" or "Analysis" module; set the reflected light intensity of the central field of view to be not less than 70%, and the reflected light intensity of the maximum field of view to be not less than 65%. In the parameter setting interface of the software, enter the corresponding threshold value; import the actual optical reflection data, the software will automatically calculate the deviation of the actual reflected light intensity from the set threshold value, record the reflected light intensity deviation value, and save it as a data file in the format of CSV or TXT; in the optical simulation software, enter the "Spectral Analysis" module, set the reflection spectrum peak value at a wavelength of 486.13nm to be not less than 75%, and the reflection spectrum peak value at a wavelength of 656.27nm to be not less than 80%; in the spectral analysis setting interface of the software, enter the corresponding threshold value; import the actual optical reflection data, the software will automatically calculate the deviation of the actual reflection spectrum from the set threshold value, record the reflection spectrum deviation value, and save it as a data file in the format of CSV or TXT; in the optical simulation software, enter the "Angle Analysis" module; set the central field of view reflection angle distribution range to ±2°, and the maximum field of view reflection angle distribution range to ±3°. In the software's angle analysis setting interface, enter the corresponding threshold value; import the actual optical reflection data, and the software will automatically calculate the deviation between the actual reflection angle and the set threshold value; record the reflection angle deviation value and save it as a data file in the format of CSV or TXT; in the optical simulation software, enter the "Standard Deviation Measurement" module, and based on the reflected light intensity deviation value, the reflected spectrum deviation value and the reflected angle deviation value, the software will automatically perform optical standard deviation measurement to obtain optical standard deviation data and save it as a data file in the format of CSV or TXT; in the software's "Effect Evaluation" module, evaluate the simulation effect level according to the optical standard deviation data, obtain simulation effect evaluation data, and save it as a data file; use data visualization tools (such as Matplotlib) to visualize the simulation effect evaluation data, draw charts of reflected light intensity, reflection spectrum and reflection angle, and intuitively display the comparison between the actual reflection data and the simulation model; organize the charts and data analysis results into an optical lens simulation analysis report, which records the conclusions of the simulation effect evaluation in detail and saves it in PDF or Word format.

[0056] It is particularly important that step S434 includes the following steps: Step S4341: performing lens imaging parameter deviation measurement on the lens simulation optimization model based on the reflected light intensity deviation value, the reflected spectrum deviation value, and the reflected angle deviation value to obtain lens imaging parameter deviation data; Step S4342: mapping the lens imaging parameter deviation data to an optical standard deviation range to obtain optical standard deviation data; Step S4343: determining the degree of deviation according to the optical standard deviation data to obtain optical deviation degree data; dividing the optical deviation degree data into degree levels to obtain optical deviation level data; Step S4344: Evaluate the simulation effect level of the lens simulation optimization model based on the optical deviation level data to obtain simulation effect evaluation data.

[0057] In an embodiment of the present invention, in an optical simulation software (such as Zemax), enter the "Data Analysis" or "Performance Evaluation" module, import the reflected light intensity deviation value, reflected spectrum deviation value and reflected angle deviation value calculated previously; select the "Imaging Parameter Deviation Measurement" function, the software will perform calculations based on the imported deviation values, and during the calculation process, the software will comprehensively consider the influence of the deviations of the reflected light intensity, spectrum and angle on the imaging quality, and obtain the lens imaging parameter deviation data; save the calculation results as a data file in the format of CSV or TXT; in the software, enter the "Standard Deviation Mapping" function, and set the range of optical standard deviation according to the lens imaging parameter deviation data; set the reflected light intensity deviation range to ±10%, the reflected spectrum deviation range to ±5%, and the reflection angle deviation range to ±1°; the software will map the lens imaging parameter deviation data according to the set range to obtain the optical standard deviation data; save the mapped optical standard deviation data in the format of CSV or TXT; in the software, enter the "Degree of Deviation Analysis" function, and determine the degree of deviation of each parameter according to the optical standard deviation data. For example, the degree of deviation is divided into slight (deviation less than 5%), medium (deviation between 5%-10%) and severe (deviation greater than 10%) to obtain the optical deviation degree data; enter the "deviation level classification" function, and divide the deviation level into level one (slight deviation), level two (medium deviation) and level three (severe deviation) according to the optical deviation degree data; in the software, enter the "simulation effect evaluation" function, and evaluate the simulation effect level of the lens simulation optimization model according to the optical deviation level data; the evaluation standard is that level one deviation corresponds to excellent level, level two deviation corresponds to good level, and level three deviation corresponds to qualified level.

[0058] In this specification, a simulation analysis system of an optical lens is provided, which is used to perform the simulation analysis method of the optical lens. The simulation analysis system of the optical lens includes: The optical lens parameter acquisition module is used to acquire the geometric parameters and material properties of the optical lens and record the initial parameter information of the lens; based on the initial parameter information of the lens, an initial simulation model of the lens is constructed through computer-aided design software; The simulation optical performance evaluation module is used to obtain characteristic data of the optical lens in the use scene, record the imaging requirements of the use scene and the temperature and humidity of the scene environment, so as to obtain the characteristic data of the use scene; input the characteristic data of the use scene into the initial simulation model of the lens, simulate the imaging process of the optical lens, and evaluate the optical performance of the imaging process of the optical lens to obtain the optical performance evaluation result; A simulation optical parameter adjustment module is used to adjust the initial simulation model of the lens according to the optical performance evaluation result. If the optical performance evaluation result does not meet the preset performance index, the optical parameters of the initial simulation model of the lens are adjusted to obtain a lens simulation optimization model; The simulation integrated analysis module is used to integrate the lens simulation optimization model into the optical lens simulation device to perform actual optical reflection monitoring to obtain actual optical reflection data; the lens simulation optimization model is simulated and analyzed according to the actual optical reflection data to generate an optical lens simulation analysis report.

[0059] The present invention collects the geometric parameters and material properties of the optical lens through the optical lens parameter acquisition module, and records the initial parameter information of the lens in detail, providing accurate and comprehensive basic data for the construction of the subsequent simulation model, and the accuracy of these data directly determines the reliability of the simulation model; based on the initial parameter information of the lens, the initial simulation model of the lens is constructed using computer-aided design software, realizing the rapid transformation from theoretical design to virtual model, providing an efficient platform for subsequent performance evaluation and optimization, and greatly shortening the optical lens research and development cycle. Through the simulation optical performance evaluation module, the characteristic data of the optical lens in the use scene, including imaging requirements and scene environment temperature and humidity, is obtained, ensuring that the conditions of the simulation are highly consistent with the actual use scene, and can effectively simulate the real working conditions of the optical lens in actual application, providing an accurate basis for subsequent performance evaluation; the use scene characteristic data is input into the initial simulation model of the lens, the optical lens imaging process is simulated, and the optical performance of the optical lens imaging process is evaluated, which can accurately evaluate the performance of the optical lens in a specific scene, and provide a clear direction for subsequent optimization and adjustment. Through the simulation optical parameter adjustment module, the initial simulation model of the lens is adjusted according to the optical performance evaluation results. If the optical performance evaluation results do not meet the preset performance indicators, the optical parameters of the initial simulation model of the lens are adjusted, which can solve the performance problems of the optical lens in specific scenarios in a targeted manner and ensure that the optimized model can meet the actual application requirements; through the adjustment of optical parameters, the lens simulation optimization model obtained can effectively improve the performance of the optical lens to meet the preset performance indicators; improve the imaging quality of the optical lens, enhance its adaptability under different environmental conditions, and lay a solid foundation for subsequent practical applications. Through the simulation integrated analysis module, the lens simulation optimization model is integrated into the optical lens simulation device for actual optical reflection monitoring, and the simulation optimization model is verified by actual monitoring data to ensure the effectiveness of the optimization results of the model in practical applications; according to the actual optical reflection data, the lens simulation optimization model is simulated and analyzed, which can record the performance of the optical lens in the actual use scenario in detail, provide a scientific basis for subsequent further optimization or actual production, and improve the overall efficiency and quality of optical lens research and development. Therefore, the present invention simulates and analyzes the lens geometric parameters and material properties of the optical lens usage scene characteristics through data processing technology, three-dimensional modeling technology and optical measurement technology, constructs a lens simulation optimization model, and evaluates the optical performance of the optical lens with specific usage scene characteristics, thereby improving the effect of simulation analysis of the optical lens.

[0060] Therefore, the embodiments should be regarded as illustrative and non-restrictive from all points, and the scope of the present invention is limited by the appended claims rather than the above description, and it is therefore intended that all changes falling within the meaning and range of equivalent elements of the application documents are included in the present invention.

[0061] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those 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 invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features invented herein.

Claims

1. A simulation analysis method for an optical lens, characterized in that: Applied to an optical lens simulation device, the optical lens simulation analysis method comprises the following steps: Step S1: Collecting geometric parameters and material properties of the optical lens and recording initial parameter information of the lens; constructing an initial simulation model of the lens through computer-aided design software based on the initial parameter information of the lens; Step S2: Acquire characteristic data of the optical lens in the usage scene, record the imaging requirements of the usage scene and the temperature and humidity of the scene environment, so as to obtain the usage scene characteristic data; input the usage scene characteristic data into the lens initial simulation model, simulate the optical lens imaging process, and perform optical performance evaluation on the optical lens imaging process to obtain the optical performance evaluation result; Step S3: adjusting the initial simulation model of the lens according to the optical performance evaluation result; if the optical performance evaluation result does not meet the preset performance index, adjusting the optical parameters of the initial simulation model of the lens to obtain a lens simulation optimization model; Step S4: Integrate the lens simulation optimization model into the optical lens simulation device to perform actual optical reflection monitoring to obtain actual optical reflection data; perform simulation analysis on the lens simulation optimization model according to the actual optical reflection data to generate an optical lens simulation analysis report.

2. The simulation analysis method of an optical lens according to claim 1, characterized in that: Step S1 includes the following steps: Step S11: using laser scanning technology, starting from the center of the lens, gradually scanning outwards with a step distance of 0.1-0.2 mm, and recording scanning data to obtain the diameter of the optical lens; Step S12: using a contact measuring tool, starting from the edge of the lens, gradually measuring toward the center with a step distance of 0.05-0.08 mm, and recording the measurement data to obtain the thickness of the optical lens; Step S13: using a coordinate measuring machine, placing the optical lens on a measuring platform, and measuring the offset between the center of the lens and the theoretical center to obtain the center offset of the optical lens; Step S14: combining the optical lens diameter, the optical lens thickness and the optical lens center offset into lens geometric parameters to obtain the optical lens geometric parameters.

3. The simulation analysis method of an optical lens according to claim 1, characterized in that: Step S1 also includes the following steps: Step S15: using a densitometer, immersing the material of the optical lens in a liquid of known density, and calculating the density of the lens material by the buoyancy principle; using an Abbe refractometer, measuring the refractive index of the material of the optical lens, and measuring the refractive index of the lens material under a sodium lamp with a wavelength of 489.3-589.3 nanometers; Step S16: placing the material of the optical lens in a constant temperature box, and measuring the dimensional change of the material at 20 degrees Celsius, 40 degrees Celsius, and 60 degrees Celsius, respectively, to obtain the thermal expansion coefficient of the lens material; Step S17: combining the lens material density, the lens material refractive index and the lens material thermal expansion coefficient to obtain lens material characteristic parameters; Step S18: Mark the optical lens geometric parameters and lens material characteristic parameters as lens initial parameter information, and input the lens initial parameter information into computer-aided design software to construct an initial simulation model of the lens.

4. The simulation analysis method of an optical lens according to claim 1, characterized in that: Step S2 includes the following steps: Step S21: placing a lens resolution test card within the imaging range of the optical lens, and recording the lens imaging resolution of the lens at a distance of 0.5-5 meters by shooting an image of the optical lens resolution test card; Step S22: placing the lens grayscale step test chart within the imaging range of the optical lens, setting a 5500-6500K test illumination interval within the imaging range, and recording the contrast of the bright and dark peaks of the grayscale step to obtain the lens contrast parameter; Step S23: placing the lens distortion test card within the imaging range of the optical lens, setting the positions of the central area, the diagonal area and the edge area within the imaging range, and measuring and recording the lens distortion values; Step S24: combining the lens imaging resolution, the lens contrast parameter and the lens distortion value into scene imaging parameters to obtain scene imaging parameters; and detecting the use scene environment parameters of the optical lens according to the scene imaging parameters to obtain scene environment parameters; Step S25: inputting the scene imaging parameters and the scene environment parameters into the initial simulation model of the lens, simulating the optical lens imaging process, and performing optical performance evaluation on the optical lens imaging process to obtain an optical performance evaluation result.

5. The simulation analysis method of an optical lens according to claim 4, characterized in that: Step S24 includes the following steps: Step S241: combining the lens imaging resolution, the lens contrast parameter and the lens distortion value into scene imaging parameters to obtain scene imaging parameters; Step S242: measuring the imaging environment temperature of the optical lens according to the scene imaging parameters, and recording the ambient temperature data proportionally every 1-10 minutes through the temperature sensor for 24 hours to obtain the ambient temperature range data; Step S243: measuring the humidity of the imaging environment of the optical lens according to the scene imaging parameters, and recording the environmental humidity data in proportion every 15-30 minutes through the humidity sensor for 48 hours to obtain the environmental humidity range data; Step S244: measuring the imaging environment light intensity of the optical lens according to the scene imaging parameters, and recording the ambient light intensity data proportionally every 30-60 minutes by means of a light intensity meter for 72 hours to obtain the ambient light intensity fluctuation value; Step S245: mapping the ambient temperature range data, the ambient humidity range data and the ambient light intensity fluctuation value to the scene imaging parameters to obtain the scene environment parameters.

6. The simulation analysis method of an optical lens according to claim 4, characterized in that: Step S25 includes the following steps: Step S251: starting the optical simulation software, creating an optical lens simulation project, and importing the initial lens simulation model into the optical lens simulation project; Step S252: input scene imaging parameters in the optical lens simulation project, set the lens aperture value to 25-35 mm, set the field of view angle to 3.5° to 10°, and set the visible light range to 486.13 nm-656.27 nm; Step S253: input scene environment parameters in the optical lens simulation project, set the ambient temperature to 10° to 40°, set the ambient humidity to 40%RH-60%RH, and set the light source type to natural light and LED light; Step S254: starting the optical lens imaging process of the optical simulation software, and continuously simulating the optical lens imaging process; fixing the lens imaging duration to 15-20 minutes, and dividing the lens imaging duration into imaging state positions every 10 seconds; Step S256: performing optical performance evaluation on the optical lens imaging process to obtain an optical performance evaluation result.

7. The simulation analysis method of an optical lens according to claim 6, characterized in that: Step S256 includes the following steps: Step S2561: start the ray tracing function of the simulation software and input the number of rays as 8000-10000; Step S2562: Detect the amount of light that the input light penetrates after passing through the optical lens to obtain the amount of light penetration; draw an optical modulation transfer function curve for the amount of light penetration to generate a modulation transfer function curve; Step S2563: Calculate the focusing conditions of the input light at different field angles, record the light focusing spot size and light focusing shape, and draw an optical spot diagram; Step S2564: performing wavefront error calculations on the input light based on the visible light wavelength ranges of 486.13 nm, 587.56 nm and 656.27 nm respectively to obtain wavefront error values; performing optical wavefront error mapping on the wavefront error values ​​to generate an optical wavefront error map; Step S2565: export the modulation transfer function curve, the optical point diagram and the optical wavefront error diagram as an optical performance evaluation image to obtain an optical performance evaluation result.

8. The simulation analysis method of an optical lens according to claim 7, characterized in that: Step S3 includes the following steps: Step S31: Setting standard performance indicators for the optical performance evaluation results to generate preset performance indicators; Step S32: comparing the optical performance evaluation result with the preset performance index, if the modulation transfer function curve does not meet the preset performance index, adjusting the aperture value of the optical lens within a parameter range of ±5 mm to obtain a lens aperture adjustment parameter; Step S33: comparing the optical performance evaluation result with the preset performance index, if the optical spot diagram does not meet the preset performance index, identifying the focus spot area to obtain the focus spot scattering area; adjusting the lens thickness of the optical lens within a parameter range of ±2mm according to the focus spot scattering area to obtain the lens thickness adjustment parameter; Step S34: comparing the optical performance evaluation result with the preset performance index, and if the optical wavefront error graph does not meet the preset performance index, recording that the wavefront error is out of range; adjusting the lens surface accuracy of the optical lens within the ±0.1λ parameter range according to the wavefront error being out of range, to obtain a lens accuracy adjustment parameter; Step S35: adjusting the optical parameters of the initial lens simulation model based on the lens aperture adjustment parameter, the lens thickness adjustment parameter and the lens precision adjustment parameter to obtain a lens simulation optimization model.

9. The simulation analysis method of an optical lens according to claim 1, characterized in that: The step S4 comprises the following steps: Step S41: exporting the lens simulation optimization model from the computer-aided design software and converting the model format to obtain a lens simulation optimization model file, and loading the lens simulation optimization model file into the optical lens simulation device; Step S42: monitoring the actual reflection of the optical lens according to the optical lens simulation device, collecting the reflected light intensity, reflection spectrum and reflection angle in proportion every 1-5 seconds to obtain actual optical reflection data; Step S43: Evaluate the simulation effect of the lens simulation optimization model according to the actual optical reflection data to obtain simulation effect evaluation data; visualize the simulation effect evaluation data to generate an optical lens simulation analysis report.

10. A simulation analysis system for an optical lens, characterized in that: For executing the simulation analysis method of the optical lens as claimed in claim 1, the simulation analysis system of the optical lens comprises: The optical lens parameter acquisition module is used to acquire the geometric parameters and material properties of the optical lens and record the initial parameter information of the lens; based on the initial parameter information of the lens, an initial simulation model of the lens is constructed through computer-aided design software; The simulation optical performance evaluation module is used to obtain characteristic data of the optical lens in the use scene, record the imaging requirements of the use scene and the temperature and humidity of the scene environment, so as to obtain the characteristic data of the use scene; input the characteristic data of the use scene into the initial simulation model of the lens, simulate the imaging process of the optical lens, and evaluate the optical performance of the imaging process of the optical lens to obtain the optical performance evaluation result; A simulation optical parameter adjustment module is used to adjust the initial simulation model of the lens according to the optical performance evaluation result. If the optical performance evaluation result does not meet the preset performance index, the optical parameters of the initial simulation model of the lens are adjusted to obtain a lens simulation optimization model; The simulation integrated analysis module is used to integrate the lens simulation optimization model into the optical lens simulation device to perform actual optical reflection monitoring to obtain actual optical reflection data; the lens simulation optimization model is simulated and analyzed according to the actual optical reflection data to generate an optical lens simulation analysis report.

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