I am interesting in recreating the tutorial on summing POP beams coherently in python, has anyone tried this ?Is there an equivalent ZBFSUM commant for python ? https://support.zemax.com/hc/en-us/articles/1500005487201-How-to-sum-POP-beams-coherentlyThe attachments given in the tutorial donot contain the full code file, therefore I could use some help on the revelant commands in python ? Is writing a macro more suitable for this task ? Regards, NC

That example is a Python script to convert source file between Zemax and SPEOS. To learn more about that converter, check our article: https://support.zemax.com/hc/en-us/articles/4416068530579-SPEOS-and-Zemax-Source-file-converterDownloadFor more information about Ansys optical_automation, click here. TroubleshootingIt’s possible that we get an error message:Non binary files not supported.This happens when the file is not stored in form of ones and zeros, or in some other binary (two-state) sequence.Zemax source fileFor Zemax source file, the extension SDF is recommended, and DAT is supported only for backward compatibility. The file format may be either text or binary. This is mentioned in The Setup Tab > Editors Group (Setup Tab) > Non-sequential Component Editor > Non-sequential Sources > Source File. You can put a detector close to this source file and save the ray tracing data as new source file to convert the non-binary source to a binary one.Speos source fileAs for S

This Surface Scatter DLL models a Lambertian scattering and contains a depolarization fraction parameter to depolarize part of the scattered rays. That DLL is a good example to demonstrate how to control the electric field and how to implement importance sampling. The code is based on "{Zemax}\DLL\SurfaceScatter\Lambertian.DLL".  Click here to download Date Version OpticStudio Version Comment 2019-01-13 1.0 - Creation  

Hi all, I’m not going to create a repository for this, but if you quickly need a modulo operator in your Merit Function, there you have it. Hx and Hy are the operand numbers (integer) that will be used as the numerator and denominator respectively.The relevant part of the code is self-explanatory (hopefully):int numerator = (int)TheApplication.OperandArgument1;int denominator = (int)TheApplication.OperandArgument2;...double numerator_value = TheSystem.MFE.GetOperandAt(numerator).Value;double denominator_value = TheSystem.MFE.GetOperandAt(denominator).Value;operandResults[0] = numerator_value % denominator_value;To install, download the ZIP file, extract it, and move UDOC12.exe to yourDocuments/Zemax/ZOS-API/Operandsfolder. Then, in the MFE you can do:The rest of the division of 5.00 by 2.00 is 1.00.In case you are wondering why I made this. I needed to have a linear polarization without caring about the orientation. I noticed that using CODA with data=110 (phase difference), some linea

Hi everyone,I would like to change the surface properties with Python ZOS-API.How can I change the follow parameter from “Explicit” to “ Reverse Thhis Surface”?Thanks for help.

Hello everyone,I'm a new user of Zemax OpticStudio, and my current focus is on simulating Zernike coefficients to characterize mirrors, specifically focusing on the spherical aberration coefficient Z11. Currently, I'm in the calibration phase, working to establish the correlation between the Zernikes measured with my Shack-Hartmann (SH) sensor and those obtained through simulations in Zemax.In our lab, we are using a Shack-Hartmann Wavefront sensor with 127 microlenses arranged in a hexagonal shape. The mirror under test is a known spherical mirror with a 2-inch diameter and a focal length of 1000 mm. The SH sensor specifications include a pixel size (Deltax=Deltay) of 9.9 um, lenslet focal length of 18 mm, lenslet diameter (pitch) of 300 um, clear aperture of 3.9 mm, and a CCD camera with dimensions 640x480 px, operating at 633 nm.Initially, I simulated a basic setup in Zemax with a collimated laser, circular aperture of 50 mm @ 633 nm, reflecting off the mirror and returning to the S

Hi,I am working on a tolerance script that uses different surface optimizations (thickness as well as tilts) on its components.I am using the CPAR and COMP commands, but there is a constraint in the maximal optimization range. Is there a way to set this range in the script? I can try to use the merit function to set the limits, but seems too convoluted.

Hi all,A while back I was on these forums looking for a way to open a .ZBF file using Python and there seemed to be some interest in that from others.  I’ve attached my file that handles opening a .ZBF file either by inputting a file name (with path) or leaving it blank to call a GUI with an explorer to select a file.  From there it will read the binary file and output all relevant information including the E field values, both real and imaginary for x and y (if polarized).  This started off using Michael Chen’s post Python Reading Writing Binary Files (ZRD, ZBF, DAT, SDF) and then using a chunk of code from the old PyZDDE module to see how to read the E-Field values. I optimized reading the files down to a 2048x2048 image takes about 1.5 seconds to open.  Sadly I think the rest is a limitation of python. Within the class there are functions to get irradiance, power, total power, and peak irradiance.  I’ve also added a x,y decenter value to handle decentering the image (in lens units,

Author: Ian Pond (Ansys Thermal Desktop Application Engineer)Attached you will find a short pptx describing the workflow for exporting temperature data from a Thermal Desktop thermal model of optic components for use in OpticStudio. OpticStudio requires tab delimited data for temperature import data, which includes X,Y,Z, and Temp data. The built-in Thermal Desktop tool exports a small amount of extra information, which isn’t needed by OS. The included python script can be run from the command line to convert the default output files to the proper format for OpticStudio (please open the file with a text editor first and see the comments for usage).Please feel free to reach out here or to our Thermal Desktop Support email (crtech.support@ansys.com). Date Version Optic Studio Version Comment 12/22/2023 1.0 - Creation  

This diffraction DLL models a non-paraxial idealized polarizer model that produces a linear polarized transverse electric field. It is an alternative to the Jones matrix, that model polarizers for paraxial fields under normal incidence. The diffractive DLL is only a tool used here to compute the electric field. For more information, check: https://www.researchgate.net/publication/324234609_Non-paraxial_idealized_polarizer_model This DLL works for OpticStudio subscription licenses. The source code is not shared.Author: Michael Cheng   Click here to download Date Version OpticStudio Version Comment 2021/12/01 1.0 - Creation   

Attached python script loads a ZBF and propagate the beam to a specific range with given sampling. And then draw the beam in YZ view.Currently POP doesn’t support YZ view, but we can first save a ZBF file and use this tool to show YZ for desired range in z direction.The settings are as below.The beam will be drawn for the range between d1 and d2. We can specify the sampling with the variable samp. The UseAngularSpectrumPropagator must be True for now. We could update it to support False, but this requires some more complicated stitching process. The wave should be correctly set up with the wavelength in the ZBF, otherwise we would get wrong result.   Click here to download Date Version OpticStudio Version Comment 2023/08/14 1.0 23R2 Creation

Hello all,I am new to the ZOS API, and would like to know how to get the file name once the connection has been done. I am using Python and I have tried : TheApplication = TheConnection.ConnectAsExtension(0)TheSystem = TheApplication.PrimarySystemprint(TheSystem.SystemName)  but I can’t get the name of the zemax file. Any idea how get it?

Attached file shows alternative method to the following code.ZPL Macro：Fit CAD surface as a sequential surface It uses ZOS-API with Python. The benefit is we will generate the fitting system automatically. A document is provided to show a simple example about how to use it.

The download contains a Python script a script to write an image (JPG) into a Binary BIM Image file. The PNG, GIF, TIFF, and BMP should also be supported but haven't been tested.  Click here to download Date Version OpticStudio Version Comment 2022/01/01 1.0 - Creation  

This Source DLL models an Hermite-Gaussian Source using ray generated at position and angles following the intensity of the electric field and the angular spectrum. This Source DLL is inspired by the known DLL (Source): Non-sequential Astigmatic Gaussian DLL (Source): Hermite-Gauss take 4 parameters:w0_x, w0_y are the theoretical beam waist of the fundamental mode n_x, m_y are the mode indices in the corresponding directionsAuthors:Oran Meir - TriEye@Eyal Hollander- TriEye References:1. Goodman, J. W. (1996, January 1). Introduction to Fourier Optics. McGraw-Hill Science, Engineering & Mathematics, Ch 3.102. Carter, W. H. (1980, April 1). Spot size and divergence for Hermite Gaussian beams of any order. Applied Optics, 19(7), 1027. https://doi.org/10.1364/ao.19.0010273. Gaussian beam. (2023, September 3). Wikipedia. https://en.wikipedia.org/wiki/Gaussian_beam4. Fourier transform. (2023, September 27). Wikipedia. https://en.wikipedia.org/wiki/Fourier_transform5. DLL (Source): Non-se

I followed the instruction for converting ray files to dat files using Visual Studio. But I can not open the file that I would like to convert using “Shift+Alt+F5!

The tool provided in this post is part of a workflow to simulate the CMOS sensor response. The workflow includes 3 steps. (1) Analyze chief and marginal rays information for the target lens data system in OpticStudio.(2) Calculate the conversion efficiency from incident optical power to output electric power in Lumerical.(3) Utilize the data of conversion efficiency and the irradiance from optical simulation in Speos to get the final electric power map. In this post, the tool for first step is introduced. By running this tool with a given lens system, we calculate and export the data of chief and marginal rays’ angle for different position on the image surface. For step 2 and step 3, the information will be updated soon in following two articles:CMOS Sensor Camera - Sensor Characterization – Ansys OpticsCMOS Sensor Camera - Image Quality Analysis in a 3D Scene – Ansys Optics The process in this step is as below.Open the lens system. Perform Design Lock Down tool in the Tolerance tab in

We have created a public repository called https://github.com/ansys/optical-automation. We are hoping to gradually move our solutions to this Ansys open project on GitHub.How to use Ansys optical-automationAnsys optical-automation comes with a documentation: https://ansys-internal.github.io/optical-automation/This section shows how to clone the GitHub repository and run the code in Visual Studio. Note the Visual Studio is not absolutely required. Users can use their preferred tool to sync the GIT repository and preferred IDE tool to run the Python project. Here we simply use Visual Studio as an example. Visual Studio installationUsers can download and install the latest Visual Studio in the following link: https://visualstudio.microsoft.com/vs/community/During the installation, the Python development must be selected as below.GitHub repository configurationAfter the installation, we can launch the Visual Studio and click Clone a repository.Copy and paste the link below to the Repositor

This is a sequential surface DLL that models a realistic slant grating by using RCWA. The parameters for this sequential surface is mostly same to the same model in non-sequential mode, where details are introduced below.https://support.zemax.com/hc/en-us/articles/1500005578722-Simulating-diffraction-efficiency-of-surface-relief-grating-using-the-RCWA-methodThe main difference to its equivalence in non-sequential mode is only one diffraction order is allowed in sequential mode. If simulation of multiple orders is desired, users can use multi-configs to work it around.The DLL can be downloaded by downloading and opening the attached ZAR file. The corresponding DLL will be automatically extracted to the folder \Document\Zemax\DLL\Surfaces\Note this DLL is locked to only Premium and Enterprise in Ansys Zemax OpticStudio. Standard and Professional license editios are not allowed. Legacy Zemax OpticStudio is not allowed either. Date Version OpticStudio Version Comment 2023/04/03 1.

This Zemax User-Extension helps set-up or check a system with fibers or lasers in OpticStudio. There are two tabs: one to set-up correctly the System Explorer given the fiber values and a second tab to check that a system has been set-up correctly. Values are also given for POP.  Click here to download Date Version OpticStudio Version Comment 2020-05-13 1.0 - Creation  

I have surfaces near the focus of an aberrated system and I’m seeing that the Clear Semi-Diameter is being automatically set much smaller than the actual beam size. I know that this is because the surface is in a caustic region and I can set a fixed value rather than leave it as automatic. I’d like to have another option, to size it based on something other than the marginal ray height at the surface. What options do I have?

It is common for illumination design to have complex shapes which are difficult to describe by a mathematical formula. For example, custom collimators, waveguides, reflectors, and so on could be represented by freeform curves. When such optical components are designed in a CAD program, we can't optimize their shape in Zemax after importing CAD files.To overcome this issue, I provide an example of how to convert CAD data of a TIR lens into a parametric surface and optimize it for light collimation.In this example I’m using TIR lens. It consists of TIR surface and refractive surface, as shown below.Reference: Pencil of RaysFirst, we will fit TIR surface.Zemax has a Freeform Z object, which is formed by drawing a cubic spline curve through a series of points in the YZ plane:Our target is to retrieve these YZ pairs from a solid model cross-section via cubic spline interpolation. Spline interpolation can be done in python using scipy.interpolate.CubicSpline(Z,Y):Cubic Spline InterpolationAf

To compute the ABCD matrix, OpticStudio traces rays over a very small region centered upon the reference field position. Usually, this is the center of the field of view. OpticStudio allows selection of which field position to use for reference.By default, OpticStudio sets the corner of the field grid in object space to be at the maximum radial field distance. Because object height is linear with the tangent of the field angle, the full width of the field when angles are used to define the field is given byWhere θr is the maximum radial field angle at the corner of the field.The ray coordinates in image space for the very small field of view are used to determine the ABCD matrix components. The use of an ABCD matrix allows for coordinate rotations. If the image surface is rotated, such that a y object coordinate images to both an x and a y image coordinate, the ABCD matrix will automatically account for the rotation. The grid distortion plot shows the linear grid, and then marks the ac

Hi Frequent Posters,As I’m sure anyone who regularly answers questions on here, you can at least run across a response not saving for one reason or another.  Zemax has a placeholder warning saying “be sure to wait for your attachment to finish uploading before you submit, or you may lose the content of your post”.  The only problem is there is no indication from Zemax that attachments are still uploading.  So, if you have a few images and one hasn’t uploaded (for whatever reason), you lose your entire post.  This is very frustrating, especially if you have a few paragraphs with several images (I’ve personally lost probably over 8+ hours of creating responses because of this).The CKEditor which the community forum uses unfortunately doesn’t have client-side autosave via localStorage (the editor only has a server-side autosave which kinda defeats the purpose of losing content because it’s not sent to the server).I wrote a tiny Chrome (and Edge) extension that will auto-save your content

This Surface Scatter DLL uses an external data file with spline fit points to generate a rotationally symmetric spline-fit scatter function. Allows for quick/easy custom scatter definitions to be implemented. Spline function is defined via polar angle (with theta=0 centered on the specular ray). External data file consists only of 2 columns: polar angle, and relative radiance.Authors: Zachary Derocher Tim Gustafson - Zemax  Click here to download Date Version OpticStudio Version Comment 2020-01-15 1.0 - Creation