48 results about "Zemax" patented technology

The present invention relates to the optics aspheric precision measurement field, and relates to an aspheric surface-type detection method based on the LC-SLM error compensation and digital phase shift technology. The ZEMAX software is employed to perform optics tracking to obtain the ideal wave aberration of an optics system, a series of orthogonal Zernike polynomials are employed to represent the wave aberration, the corresponding computer generated hologram is obtained and is loaded on the LC-SLM, the residual error iteration method is employed to reduce the influence of the LC-SLM curvature error, the edge field effect and the like and improve the wavefront simulation precision of the LC-SLM, and the convergent lens playing the compensation effect and digital phase shift and interference fringe analysis technology are combined to greatly improve the measurement dynamic range and realize the real-time detection of the large aspheric surface degree surface type.

The invention relates to an imaging system for a stellar field of computer simulated star sensors. The imaging system comprises an observation star database, a user input end and an extension module. The user input end is created in optical design software ZEMAX and is applicable to setting the direction of an optical axis of an optical module in the optical design software ZEMAX and the quantity and sizes of pixels of an image surface detector. The extension module is applicable to calling the optical design software ZEMAX and comprises an observation star extracting module, a visual field position computing module and a pixel gray scale computing module. The optical design software ZEMAX further comprises a ray tracing module, and the pixel gray scale computing module outputs a digital star chart according to the set quantity and the set sizes of the pixels of the image surface detector and a received energy value. By the imaging system, star chart data matched with the detector can be obtained, image surface data are sampled and quantified by the pixel gray scale computing module according to the sizes and the quantity of the pixels, the sizes and the quantity of the pixels are inputted by a user, the brightness of each pixel is computed, and the digital star chart matched with the detector can be outputted.

The invention discloses a dynamic modeling method for detecting an aspheric surface through an axial scanning optical interference method, and the method comprises the steps: building an interferometer model through zemax software; simulating a process of driving a to-be-detected aspheric mirror to axially move in the interferometer model through matlab software; carrying out the tracking, fittingand reverse tracking of light, thereby eliminating impact on the light tracking effect from lens distortion; finally building an objective image relation between the to-be-detected aspheric mirror and a CCD image element, thereby obtaining a series of interferograms which continuously change with the scanning, and improving the simulation scientificity.

The invention discloses a simulation method for a double-base disk type involute sample plate measurement optical system based on heterodyne interference. The method comprises the following steps of firstly, analyzing a principle of the double-base disk type involute sample plate measurement optical system based on the direct-reflection three-light path laser heterodyne interference; then buildingan energy simulation model of the double-base disk type involute sample plate measurement system based on the direct-reflection three-light path laser heterodyne interference by utilizing ZEMAX according to the principle of the optical system; and analyzing the influence of the non-ideal performance of each optical element in the optical system on the energy of a laser heterodyne interference signal by utilizing the energy simulation model. According to the method, the bottleneck of a double-base disk type involute sample plate sub-micron precision measurement technology is broken through; anew measurement model is built; and the influence of the non-ideal performance of each optical element on the energy of the measurement system is analyzed. The method has the guiding significance fordesigning the double-base disk type involute sample plate high-precision measurement optical system based on the direct-reflection three-light path laser heterodyne interference, selecting the opticalelements and improving the precision of the measurement system.

The invention discloses a ZEMAX simulation method for a laser tracking system based on a dual-wavelength method for compensating an air refractive index, and is used for analyzing the influence of non-ideality of each optical element in an optical system on system energy; based on an optical system principle of the laser tracking measurement system that compensates the air refractive index based on the dual-wavelength method, according to structures between various optical elements, parameters of multiple structures are set, then the parameters are sequentially adjusted, and a model of the laser tracking measurement system based on the double-wavelength method for compensating the air refractive index is established. Parameters of various optical elements are set, the interference signal stripe contrast is analyzed, the optimal parameter setting of the optical system is achieved, and the purpose of improving the measurement precision of the laser tracking measurement system is achieved, thus the ZEMAX simulation method provided by the invention has guiding significance for the design of the laser tracking measurement optical system and the selection of the optical elements.

The invention discloses a laser tracking measuring optical system energy analysis method based on ZEMAX simulation, wherein the method is used for analyzing influence of each optical element in an optical system to a laser tracking measuring system. Simulation model establishment is performed on each optical element which is required in the whole system in ZEMAX. According to an optical system principle of laser tracking measurement, sequence adjustment, setting of multiple structure parameters and structure designing between the optical elements are performed. A simulation model of the lasertracking measuring optical system is established for obtaining an energy result. According to different application conditions and environments of the optical element, setting of corresponding parameters is performed, and influence of the optical element parameters to energy of the optical system is obtained. A simulation result is utilized for performing system optimization and reliability evaluation on the optical system.

The invention relates to a computer-aided design method for a cam curve in a three-component zooming system based on ZEMAX optical design software. According to requirements of a three-component optical system to the curve track of the cam, the Gauss optics principle is applied, the macro language function of the ZEMAX is adopted, and the 3-CAM-ZPL procedure is compiled, through the operation of the procedure, the number of sampling points of the cam curve and a curve coefficient K of moving track of a second zooming group are only input, that is, the value scope and the value quantity of the K value are automatically confirmed and comparatively analyzed through the 3-CAM-ZPL procedure, and the optimal design graphic of the cam curve can be obtained through adjusting the number of sampling points and the K value. The method can automatically generate and display graphics according to the design data of the cam curve, so that the design effect is intuitive, the modification is convenient, the design speed of the cam curve and the performance of products of cams are greatly improved, the development period of products is shortened, and the design cost is reduced.

The invention discloses a polarizer grating (PVG) diffracted ray tracing simulation system and method based on RCWA. According to the invention, the RCWA analysis theory is utilized, the anisotropic periodic grating structure is expanded into Fourier series, the diffraction characteristic of the incident light is solved by utilizing the boundary condition, and then the Monte Carlo method is combined to optimize the light tracing algorithm, so that the simulation precision and the operation speed are improved. The model can quickly calculate the diffraction characteristics of the grating undergiven parameters, including diffraction order, propagation direction, diffraction efficiency and polarization state analysis, has good portability, and can be applied to commercial optical simulationsoftware ZEMAX through a dynamic link library (DLL) to achieve ray tracing simulation.

The invention discloses an adjustment method based on a second-order sensitivity matrix method. The method comprises the steps of: building an off-axis reflection telescope model through Zemax, and obtaining a Zernike coefficient corresponding to a system through changing the spatial positions of other reflectors except a main mirror; obtaining multiple groups of misalignment errors and corresponding Zernike coefficients by repeating the above step, and then obtaining a curve relation function of the misalignment errors and the Zernike coefficients according to the principle of a least squaremethod; and solving a second-order derivative about the offset by using the obtained curve function so as to obtain a second-order sensitivity matrix, and finally guiding the assembling and adjustmentof an off-axis optical system by using the second-order sensitivity matrix. The method is suitable for a large error range, has higher precision than a traditional sensitivity matrix, can be better used for actual adjustment engineering, and improves the final imaging quality of the optical system.

On the basis of a customized human eye model, the invention designs an optimized ablation mode for a refractive surgery to correct out-of-focus, astigmatism and other aberrations, and belongs to the technical field of orthoptics of human eyes. The design uses actually-measured human eye wavefront aberrations, cornea characteristic parameters and axial spacing data of each part in eyes in construction of the customized human eye model, and acquires respectively MTF of a whole eye, the cornea and crystalline lens through the optimization function of Zemax software. The design acquires the customized visual function through correlation between the aberration and a contrast sensitivity function, designs the optimized customized ablation so as to acquire the optimized visual quality. The customized visual quality can better meet the requirement of an operative patient on visual quality.

The invention discloses a method for calibrating the focal plane of an invisible light transmission optical system through a supplementary lens. The method specifically comprises the steps that 1, the position of the focal plane or the total optical length of a lens to be calibrated or the optical system to be calibrated at the invisible light wavelength band is calculated through ZEMAX software; 2, a ZEMAX multiple structure module is used for designing the supplementary lens, and the total optical length of the optical system or the supplementary back focal length total optical thickness is equal to the back focal length of the lens to be calibrated or the system to be calibrated; 3, the supplementary lens is machined, and optical parameters are measured; 4, an auto-collimation light path is established; 5, the focal plane is calibrated through the auto-collimation light path. The invention provides the method for directly determining the invisible light focal plane. The method is applicable to the design of a focal plane adjusting light path with a broad spectral range. The method has the advantages that the structure is simple, adaptability is high, cost is low, the adjustment method is reasonable and reliable, and operability is high.

The invention discloses an energy calculation method for a polarized light imaging system in complex weather, which belongs to the field of optical detection theory research and comprises the following steps: determining polarized light imaging conditions and environmental conditions and target and detector parameters in complex weather; calculating the irradiance of the solar radiation energy on the target in the response wave band of the detector; determining a target polarization reflectivity by using a 6S atmospheric radiation transmission model; acquiring the brightness of target indirect radiation; using Modtrans4.0 software to determine the atmospheric average transmittance of the detector response wave band; determining the transmittance of the optical system by using zemax software; acquiring detector image plane center illumination, light energy at an entrance pupil of an optical system, the number of electrons generated by a target on the detector, total system noise and a signal-to-noise ratio; utilizing matlab / VC + + programming software, compiling software according to the process, and carrying out analysis and optimization iteration; finally, forming a polarized light imaging system meeting the energy requirement and the signal-to-noise ratio requirement.

The invention discloses a digital microscopic optical imaging device with a long working distance, which consists of a microscope imaging light path and an industrial camera and belongs to the technical field of detection equipment. According to the invention, by simulating an optical imaging effect by utilizing optical design software ZEMAX, it provides a digital microscopic optical imaging device with a working distance of 400 mm, a view field range diameter of 4 mm, a working waveband of visible light, and a microscope optical system with a resolution of 10 [mu]m. The optical system has thecharacteristics of long working distance, high-resolution imaging and the like, and can be applied to non-contact detection in the industrial field.

The invention discloses an arbitrary shape grating simulation system based on ZEMAX. The system comprises a dynamic link library (DLL) interface, a calculation module, an acceleration method, a database module, a search module and an interpolation module, wherein the dynamic link library interface is used for embedding an algorithm into optical simulation software ZEMAX, so that the ZMEAX can calla self-defined grating model; a theoretical model adopts three-dimensional rigorous coupled wave analysis (RCWA) and is used for calculating diffraction characteristics of gratings in any shape undergiven parameters; the acceleration method uses the GPU acceleration principle, achieves rapid operation of RCWA through the powerful parallel operation capacity of a GPU, and the purpose of preliminarily accelerating an optimization algorithm; the database module is composed of a plurality of records, each record is marked by a diffraction parameter set, and diffraction characteristics under given parameters are recorded; the search module adopts a hash table method and is used for quickly searching for records corresponding to given parameters to realize further acceleration of a simulationalgorithm; and the interpolation module is used for calculating diffraction characteristics of non-recording parameters. The model can quickly calculate the diffraction characteristics of the gratingunder given parameters, and can be applied to ZEMAX to realize ray tracing imaging simulation.

The invention discloses a method for inhibiting the influence of non-uniformity of an optical material in a large-aperture interferometer. The method provides an analog simulation and correction scheme for the influence of material heterogeneity of a large-aperture collimating lens and a TF standard flat plate in the large-aperture interferometer. The method comprises the following steps: establishing a beam expanding system model in optical design software Zemax; adopting a polynomial to represent the refractive index non-uniformity of the large-aperture optical material; realizing modeling of a large-aperture collimating lens with three-dimensional refractive index distribution and a standard flat plate by adopting a self-defined surface type in Zemax, and simulating and analyzing the influence of non-uniformity of the refractive index of a large-aperture material. On the basis of accurate modeling of a beam expanding system, the influence of non-uniformity of a large-aperture optical material is suppressed by optimizing surface shape parameters of the front surfaces of a small-aperture collimating mirror and a TF standard flat plate. Three-dimensional distribution of the refractive index of the large-aperture optical material is accurately modeled, the influence of non-uniformity of the large-aperture optical material is suppressed by optimizing parameters of the small-aperture collimating mirror, and the method is high in precision and good in practicability.

The invention relates to a method for transmission light field quantitative analysis and test of a light-transmitting concrete material. The method includes: utilizing optical design software ZEMAX to establish a light-transmitting concrete model and an experiment light path, analyzing quantitatively distribution features of transmission light fields under a situation of different diffraction distances and different optical distribution, and combining with corresponding tests to finally obtain distribution situation of actual light fields. By the aid of the method, strength distribution of the transmission light fields can be obtained, and the light path can be further traced for measuring strength distribution of the transmission light fields by changing optical array structure parameters and diameter parameters of a fiber array model. A light transmitting concrete model is established through the optical design software and an experiment test is performed, and accordingly the concrete material is saved, analysis efficiency is improved, reliable data is provided for final transmission light field analysis, and a novel method is provided for the transmission light field analysis of the transmitting concrete material.

The invention provides a method for designing a focal length instrument of an electrodeless zoom lens. The method comprises the following steps of designing a free-form surface reflector structure byadopting an optical system design method, using a Zernike polynomial for representing the surface shape of the free-form surface, using ZEMAX software for fitting a polynomial coefficient corresponding to the focal length of a certain measured lens, and acquiring a surface shape structure meeting the aberration requirement, then sampling and fitting a series of Zernike polynomial coefficients corresponding to the focal length ranges from -1000 mm to -2 mm and from 2 mm to 1000 mm, and finally, establishing a micro matrix free-form surface reflector by using the obtained Zernike polynomial, controlling an electric transmission device by using a computer to realize surface shape scanning of the free-form surface reflector, and outputting a focal length value of the measured lens by using thecomputer when a clear image with the maximum image height is displayed on the CCD. The continuous zoom measurement range is improved to -1000 mm to -2 mm and 2 mm to 1000 mm; one free-form surface reflector is adopted to replace a plurality of zoom lenses, so that the assembly difficulty can be reduced, and stepless zoom can be realized.

The invention discloses a modeling method of a photographing and recording all-in-one machine optical system based on image space scanning. The method comprises the following steps: 1) calling out a focusing lens group, a zoom lens group, a compensation lens group, a diaphragm, a collimating lens group, a rear fixed lens group and a CMOS imaging assembly from an element library of ZEMAX, and carrying out aberration optimization on each lens group; 2) enabling the collimating lens to have a collimating effect; 3) adopting an ideal lens to replace the rear fixed lens group, and carrying out aberration optimization on the lens group to make the imaging quality excellent; 4) independently optimizing the rear fixed lens group again in the other working interface; and 5) combining and optimizingthe rear fixed lens group and other lens groups. According to the modeling method, the ZEMAX is used for modeling, and selection of optical elements in the optical system can be analyzed and optimized in a targeted mode, so the photographing and recording all-in-one machine optical system with the excellent imaging quality can be obtained, modeling is accurate and reliable, and the effective utilization rate and the high functional density of the optical system are improved.

The invention relates to the technical field of optical system optimization design, and discloses a fish-eye lens optical system optimization design method based on a wave aberration theory, wherein the method comprises the steps: calculating an initial structure of a fish-eye lens through employing the wave aberration theory of a plane symmetric optical system, and obtaining the wave aberration of the system and the aperture aberration component and chromatic aberration of the system; enabling the evaluation function to perform integral summation on the wave aberration and the aperture aberration in a region range covered by a light beam; developing an optimization design program in a Matlab environment through a self-adaptive normalized real number coding genetic algorithm; and carryingout modeling analysis on the system before and after optimization in Zemax, and verifying an optimization result through comparison of a modulation transfer function curve and a full-view-field pointarray diagram. According to the fish-eye lens optical system optimization method developed based on the wave aberration theory of the plane symmetric optical system, the wave aberration expression isconcise and clear, and the method can be applied to various super-large field-of-view imaging optical systems with the plane symmetric characteristic.

The invention discloses an optimization method and structure of a Galileo telescope. The method is based on ZEMAX software, and the process mainly comprises the steps of optimizing the curvature radius of a mirror surface, optimizing the thickness of a lens and optimizing a glass material. The structure mainly comprises a lens cone, an objective lens group and an eyepiece group, wherein the objective lens group and the eyepiece group are arranged in the lens cone; the length of the lens cone is 250 mm; the objective lens group is a doublet objective lens and comprises a first lens and a second lens; and the eyepiece group is a symmetrical eyepiece and comprises a third lens, a fourth lens, a fifth lens and a sixth lens. The optical system of the Galileo telescope is optimized through ZEMAX software, the optimization effect is simulated, whether the optical system needs to be re-optimized or not can be further determined according to the effect shown by simulation, the Galileo telescope system designed through the method can effectively eliminate the defects of white light and the like, and the imaging quality of the image is improved.

The invention discloses a ZEMAX simulation method for a laser tracking system based on a dual-wavelength method for compensating an air refractive index, and is used for analyzing the influence of non-ideality of each optical element in an optical system on system energy; based on an optical system principle of the laser tracking measurement system that compensates the air refractive index based on the dual-wavelength method, according to structures between various optical elements, parameters of multiple structures are set, then the parameters are sequentially adjusted, and a model of the laser tracking measurement system based on the double-wavelength method for compensating the air refractive index is established. Parameters of various optical elements are set, the interference signal stripe contrast is analyzed, the optimal parameter setting of the optical system is achieved, and the purpose of improving the measurement precision of the laser tracking measurement system is achieved, thus the ZEMAX simulation method provided by the invention has guiding significance for the design of the laser tracking measurement optical system and the selection of the optical elements.

The invention discloses a light path selector based on a double liquid lens. The light path selector comprises the double liquid lens, and a transmitting end and a receiving end which are arranged at the two sides of the double liquid lens. The invention also discloses a realization method of the light path selector based on the double liquid lens. A double liquid lens model is established by adopting optical design software, and ray tracing is performed on the double liquid lens so that the convergence situation of beams is obtained; and the position of a receiver is determined according to the acquired convergence situation of the beams and the requirement for the size of convergence light spots. Voltage between all the tube walls and electrodes of conductive liquid is appropriately changed according to the requirements so that the optical axis is enabled to rotate a specific angle. The liquid lens system model is established by adopting the optical design software, such as Zemax, and ray tracing is performed on the double liquid lens system so that the position of the receiver is designed. The light path selector based on the double liquid lens is simple in structure, convenient to operate and low in cost so that an adjustable and visual model is provided for realization of the light path selector based on the double liquid lens variable optical axis technology.

The invention relates to a large-view-field high-and-low-temperature compensation method for a broadband large-zoom-ratio continuous zoom camera. The method comprises the following steps: opening the design data of an optical system of the wide-band large-zoom-ratio continuous zoom camera in zemax software, and setting the linear thermal expansion coefficient of each structural member material; adjusting a temperature to a value out of the large-view-field design temperature interval of the optical system, adjusting the working distance of a focal plane until imaging is clear, and recording the working distance of the focal plane at the moment; and calculating a focal plane change value between the focal plane working distance at the moment and a focal plane working distance under the default temperature of the optical system, and selecting a material corresponding to the linear thermal expansion coefficient according to the focal plane change value to carry out thermal compensation on an image plane. According to the method, the focal plane working distance at high and low temperatures is simulated in the zemax software, the variable quantity of the focal plane is found, materials meeting the linear thermal expansion coefficients are found and are manufactured into corresponding parts, and thermal expansion of the parts is utilized for thermal compensation of the image plane, so the phenomenon of image blurring under the condition of a large view field is perfectly solved.

The invention relates to a large-view-field laser alarm lens design method, and belongs to the field of laser alarm optical design. The method comprises the steps of S1, designing an optical view field according to a geometrical optical principle and a geometrical relationship among a focal length, an image height and a view field angle; S2, designing a laser alarm optical system by utilizing ZEMAX software; and S3, selecting optical materials and meeting lens processing requirements. The method has the beneficial effects that the problems of small field angle and high processing and assembling difficulty in the prior art can be avoided, and a multi-lens method is introduced, so that the difficulty can be reduced, large-field detection can be realized, and the cost can be reduced.

The invention discloses a method for calibrating the focal plane of an invisible light transmission optical system through a supplementary lens. The method specifically comprises the steps that 1, the position of the focal plane or the total optical length of a lens to be calibrated or the optical system to be calibrated at the invisible light wavelength band is calculated through ZEMAX software; 2, a ZEMAX multiple structure module is used for designing the supplementary lens, and the total optical length of the optical system or the supplementary back focal length total optical thickness is equal to the back focal length of the lens to be calibrated or the system to be calibrated; 3, the supplementary lens is machined, and optical parameters are measured; 4, an auto-collimation light path is established; 5, the focal plane is calibrated through the auto-collimation light path. The invention provides the method for directly determining the invisible light focal plane. The method is applicable to the design of a focal plane adjusting light path with a broad spectral range. The method has the advantages that the structure is simple, adaptability is high, cost is low, the adjustment method is reasonable and reliable, and operability is high.

The invention discloses a method for analyzing a position error of a primary mirror blocking mirror of a large-aperture film-based diffractive optical system. A non-sequence mode in ZEMAX is utilizedand Boolean operation is combined; a primary mirror model in a blocking form of a large-aperture film-based diffractive optical system is established; the shapes and the number of primary mirror blocking mirrors of a specific optical system are accurately represented; and a position error of an independen blocking mirror can be adjusted. And then a relationship between a position error limit of the blocking primary mirror of the large-aperture film-based diffractive optical system and a joint position error limit is established, and random errors are introduced to carry out accurate quantification to obtain various position error limits meeting the system requirements. With the system, the influence of the position error of each blocking mirror of the primary mirror of the large-aperture film-based diffractive imaging optical system on the image quality of the system can be described accurately and quantitatively.

The invention discloses a method for calculating the energy of a polarized light imaging system under complex weather, belonging to the field of optical detection theory research, including determining polarized light imaging conditions and environmental conditions, target and detector parameters under complex weather; calculating solar radiation energy in the detector The irradiance to the target in the response band; use the 6S atmospheric radiation transfer model to determine the polarized reflectance of the target; obtain the brightness of the target’s indirect radiation; use Modtran4.0 software to determine the average transmittance of the detector in the response band; use zemax software to determine The transmittance of the optical system; obtain the central illuminance of the detector image plane, the light energy at the entrance pupil of the optical system, the number of electrons generated by the target on the detector, the total noise of the system and the signal-to-noise ratio; use Matlab / VC++ programming software, according to the above The software is compiled during the process, and the analysis and optimization iterations are carried out; finally, a polarized light imaging system that meets the energy requirements and signal-to-noise ratio requirements is formed.

The invention discloses a long-working-distance high-resolution microscopic imaging device for measuring a sample in a high-low temperature box, which consists of an imaging light path and an industrial digital camera, light path design and optimization are carried out through ZEMAX software, and finally an imaging light path with the working distance of 420mm, the view field range diameter of 8mm, the resolution of 10[mu]m and various imaging indexes close to diffraction limit is obtained. The imaging device is matched with a proper industrial digital camera to form the imaging device with long working distance and high resolution. The device can be used for imaging and measuring a sample in a high-low temperature box, and can also be used for occasions where an imaging light path is faraway from the sample and high-resolution imaging needs to be carried out in the field of industrial detection.