48 results about "Zemax" patented technology

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 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 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.

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 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 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 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 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.