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Code Exchange

Find and share ways to extend the capabilities of OpticStudio.

  • 92 Topics
  • 220 Replies
92 Topics
S
Luminary
Sandrine AuriolLuminary
posted in Code Exchange
New to the Code Exchange? Read this!

The Code Exchange is a moderated community where Zemax users can find or share programming solutions to extend OpticStudio’s capabilities. It can be a macro to read the sag of a surface or a DLL to define a phase surface. Browse through our space to find out what we have or share your own!Just a few things before getting started:These solutions are mostly written by optical engineers and not developers. Use them as a starting point and feel free to improve them. Comment on the post if you make an improvement or find something interesting that could be useful to other users!  Do you have a solution to share? Create a topic in the Code Exchange category using the tag Code Exchange. Be sure to include a ReadMe doc. An example template is attached. Once posted, our team will verify it and comment if needed. 

6380
S
Luminary
Michael Cheng
Zemax Staff
Michael ChengZemax Staff
posted in Code Exchange
DLL (User-Defined Surface): Sequential Binary 1+2

This DLL provides a user defined surface that has planar substrate and a phase profile integrating both radial polynomial and extended polynomial. It can be considered as a combination of surface Binary 1 and Binary 2, but with only planar substrate. This is useful for metalens design.    Click here to download Date Version OpticStudio Version Comment 2020/08/07 1.0 20.2 Creation 2021/01/01 1.1 20.3.2 Fix bug by dividing phase by approaching refractive index

10201
J
S
Luminary
Sandrine AuriolLuminary
posted in Code Exchange
API (CS User Analysis): Sequential Through Focus PSF

This Zemax User Analysis calculates a longitudinal PSF, a PSF through focus.Author: @Michael.Humphreys   Click here to download Date Version OpticStudio Version Comment 2022/03/09 1.0 - Creation  

4034
J
Kris
KrisInfrared
posted in Code Exchange
Matlab script to group rays from ZRD file to separate paths

This Matlab function imports a raw Zemax ray database stored in ZRD file, groups the rays into distinct paths based on i) the exact same sequence of objects hit AND ii) ray events (such as reflection, splitting etc.), and outputs this information in a form of graphs, human-readable variables and, most importantly, a summary table storing each path in descending total power, object sequence, total ray events and so on, which can be further processed either using Matlab's native capabilities, or exported and processed using Excel or a simple text editor.It DOES NOT need Zemax to be installed onto your system and does not use any API to connect to it. It is a completely standalone function.The need for this custom function came clear during one project at work as the native Zemax ray paths tool was insufficient. As per official documentation, it now groups it based on the sequence of FACES the rays hit.In contrast, this function retains a full low-level list of objects and events. It also

52417
Kris
ZachDerocher
ZachDerocherSingle Emitter
posted in Code Exchange
Create Ray File from Sequential System (ZOSAPI Interactive Extension)

This python ZOS-API interactive extension creates a ray file based on batch ray tracing in a sequential system. This allows import of image-space ray data from a sequential model into NS mode and/or Speos, including black-boxed lens systems. For a user selected field coordinate, rays are randomly selected in the pupil and traced to the image plane. The image space ray data (intercept at a specified dummy surface) are saved as a ray file in both Zemax and Speos formats into the ...\Zemax\Objects\Sources\Source Files\ directory. Note that is merely intended as an example. The implementation this tool should be adapted and validated based on individual cases. Click here to Download 

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ZachDerocher
yuan.chen
Zemax Staff
yuan.chenZemax Staff
posted in Code Exchange
Python Generating text ZBF from Excel

The Python code converts the Excel data into ZBF text format. The sample Excel is provided as ZBF_Example.xlsx.  Click here to download Date Version OpticStudio Version Comment 2025/01/26 1.0 - Creation  

2232
yuan.chen
Zemax Staff
E
Zemax Staff
Erin.ElliottZemax Staff
posted in Code Exchange
Mathematical API code to display the Lens Data Editor (LDE)

Here is my most-used chunk of API code, which reads and displays the basic information in the Lens Data Editor (LDE).  I’ve highlighted the parts of this that are API code, which can easily be translated into other languages. (See the linked article below.)  Everything not highlighted is specific to Mathematica, so one would need to find the equivalent functions, etc., in Python, Matlab, etc.   

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E
Zemax Staff
E
Zemax Staff
Erin.ElliottZemax Staff
posted in Code Exchange
A note on converting API code between Python, Matlab, and Mathematica

Just a quick note on converting API code between Mathematica, Python, and Matlab.  API code will be nearly identical in all languages, so it’s fairly easy to convert code from one to the other.  Here’s an example of getting the surface type from the LDE.Mathematica:mySurface = primarySystem@LDE@GetSurfaceAt[2]@Type@ToString[“”]Python or Matlab:mySurface = primarySystem.LDE.GetSurfaceAt(2).Type.ToString()And a table of the differences:Mathematica reserves the “_” character for variables, so an upper-case U is used instead.  For example, in Mathematica, a new FFT MTF analysis can be launched this way:newWin = primarySystem@Analyses@NewUFftMtf[]But in Matlab or Python, this is:newWin = primarySystem.Analyses.New_FftMtf()

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E
Zemax Staff
Michael Cheng
Zemax Staff
Michael ChengZemax Staff
published in Code Exchange
Python Reading Writing Binary Files (ZRD, ZBF, DAT, SDF)

The download contains 3 Python scripts:a script to read / parse a ZRD (Zemax Ray Database) file a script to read / parse a Binary ZBF (Zemax Beam File) file a script to read / parse a Binary DAT / SDF Source File  Click here to download Date Version OpticStudio Version Comment 2022/01/01 1.0 - Creation

237916
Kris
cmanoopckr
cmanoopckrSingle Emitter
asked in Code Exchange
Obtaining a tight focus of laser beam after a multimode fiber

Hello guys, I have a multimode fiber of 1mm core (1000 um) of 0.22 NA. I will be using this fiber to deliver my laser beam of wavelength either 450 nm or 530 nm. The beam after the fiber will be collimated and then will be refocused. The final goal to have a spot size of 50 - 60 um at the focus. I am beginer in zemax and any help would be appreciated. If any of you had done similar project in the past it would be helpful if you could share the file and i could use it as starting point. Thanks a lot.

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cmanoopckr
Michael Cheng
Zemax Staff
Michael ChengZemax Staff
published in Code Exchange
DLL (User-Defined Surface): Sequential Vortex Phase Plate

This DLL models a Vortex Phase Plate. It is useful in laser applications to convert a Gaussian laser beam into a donut-shaped energy ring. For more information, check the following links:https://www.holoor.co.il/wp-content/uploads/2017/11/vortex_zemax_tutorial.pdfhttps://www.holoor.co.il/application/optical-vortex-phase-plate-application-notes/https://www.holoor.co.il/optical-calculator/vortex-lenses/ The Vortex phase plate is a phase surface:   Click here to download Date Version OpticStudio Version Comment 2021/03/20 1.0 - Creation  

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Michael Cheng
Zemax Staff
MichaelH
Ansys Staff
MichaelHAnsys Staff
published in Code Exchange
ZPL Macro: Create automatically annotations on a 3D layout to display distances between optics

The attached ZPL will calculate the air space gaps between all elements and then will place the annotation text on the Windows clipboard.  After you run the script, simply open the Edit Annotation window, paste the text and click the Use Annotations checkbox: For the Double Gauss 28 degree field.zmx, the 3D Layout will look like:and for the Cooke 40 degree field.zmx: Limitations:You have to use the 3D Layout and not the 2d Layout.  The 3D Layout uses global coordinates for annotations while the Layout uses “window” units, meaning the values for LINE and TEXT would change based on the current zoom position. For complete control, you should use LINE3D and TEXT3D (this would allow you to place things like Comment, Radius, or Material on the plot as well.  For this simple example of air spaces, we will use MEASURE3D which is slightly easier to implement. Since we're only looking at air spaces, you need to consider when you “enter” a cemented element (doublet, triplet, etc) and when you “ex

6284
John.Hygelund
Fully Spectral
Karthick
KarthickSingle Emitter
asked in Code Exchange
FFT Through Focus MTF

Hi I am working on to create a multifocal IOL. I don’t know how much add power is in the FFT through focus MTF. It shows the focus shift. how to convert t the focus shift into diopters or is there any option in the zemax for conversion. Regards,C.Karthick

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Karthick
Csilla Timar-Fulep
Zemax Staff
Csilla Timar-FulepZemax Staff
posted in Code Exchange
DLL (User-Defined Surface): Relief-Type Diffractive Surface

This User-Defined Surface DLL provides a realistic model of relief-type diffractive lenses based on zone-decomposition. Using zone-decomposition, diffraction into multiple orders can be accurately considered at once, and this method inherently accounts for wavelength dispersion and diffraction efficiency by modelling the actual shape of the diffractive element.Application examples include the creation of advanced intraocular lens models, where the different orders are designed to provide sharp vision for multiple viewing distances, thereby substituting accommodation of the natural crystalline lens.This application is discussed in detail in the following knowledgebase article:Realistic modeling of relief-type diffractive intraocular lenses using User-Defined Surface DLLs – Knowledgebase (zemax.com)  Click here to download Date Version OpticStudio Version Comment 2022/07/15 1.0 - Creation  

17798
Karthick
S
Luminary
Sandrine AuriolLuminary
posted in Code Exchange
DLL (Source): Non-sequential Astigmatic Gaussian

This Source DLL models an Astigmatic Gaussian Source.  It is based on rays but the statistical distribution of rays gives a picture of a diffracting Gaussian beam. It is valid for small angles (paraxial approximation) and when propagating in free space. So clipping at apertures and aberrations will give incorrect results.w0x, w0y are the real beam waist radii (defined at the 1/e2 intensity point) in the XZ and YZ planes. They includes M^2. z0x, z0y are the positions of the beam waist in the XZ and YZ planes. z0<0: in propagation direction if the waist is located before source. M^2x, M^2y are the quality factors in the XZ and YZ planes.For more information, see "Representation of a Gaussian beam by rays" by P. P. Crooker, W. B. Colson, and J. Blau - Physics Department, Naval Postgraduate School, Monterey, California 93943Authors:Steffen Erhard and @Dirk Broemme    Click here to download Date Version OpticStudio Version Comment 2020/05/06 1.0 21.1.2 Creation 2023/0

293715
pengcshao
Nikki-G
Zemax Staff
Nikki-GZemax Staff
asked in Code Exchange
Symmetric Extended Polynomial Surface DLL

This DLL creates a surface identical to the Extended Polynomial surface, but it allows the user to specify if symmetry should be enforced upon the surface, specifically in the x direction, y direction, x & y direction, or no symmetry (identical to the typical Extended Polynomial surface).The source code is not shared.Author: Dominique ‘Nikki’ GalvezDownload SymExtPoly.DLL Here Date Version OpticStudio version 2024/08/15 1.0 24.2  Comparison of Symmetric Extended Polynomial (x & y symmetry active) vs standard Extended Polynomial  

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Nikki-G
Zemax Staff
Jeff.Wilde
Luminary
Jeff.WildeLuminary
posted in Code Exchange
Ideal Lens DLL (user-defined sequential surface satisfying the Abbe sine law)

NOTE (added 2/5/2024): A new version of the DLL is now available, so I have deleted the older one supplied with the posting below.  Please see this link for latest version:Ray-tracing model of a perfect lens compliant with Fermat’s principle: the Cardinal Lens ***********************Attached is a user-defined surface DLL that functions as an ideal thin lens obeying the Abbe sine condition.  It is distinctly different than a paraxial lens surface and is particularly well-suited for simulation of high-NA objectives.  The Ideal Lens surface requires two user-supplied parameters, namely the effective focal length and the paraxial magnification at which the lens yields optimal performance.  It supports arbitrary conjugates (i.e., finite conjugate, or infinite conjugate in either object or image space) and is designed to work in both standard space and mirror space.  A detailed description is provided in the included summary document, along with a discussion of several examples.  The source

123712
David.Nguyen
Luminary
John.Hygelund
Fully Spectral
John.HygelundFully Spectral
asked in Code Exchange
Matlab function to read .bim files

For anyone that finds it useful:Below is a simple function to read .bim files into matlabThe inputs are the .bim file name and image widthThis was written to consume the output from ‘Geometric Image Analysis’.Values are consistent with units displayed in zemax as long as the Total Watts = 1function [im] = imReadBIM(fileName,image_width)% read Zemax .bim file format% John Hygelund, May 28, 2024% example use: imagesc(imReadBIM('spot.bim',.003)), axis image, colorbar, colormap jetfid = fopen(fileName, 'r');size = fread(fid, 1:2, 'int32');im = fread(fid, inf, 'float64');fclose(fid);im = reshape(im,[size(1) size(2)]);im = im';im = flip(im);im = im ./ sum(im(:)); % normalize to total weight of raysim = im ./ (image_width./size(1)).^2; % normalize to area of pixel 

570
John.Hygelund
Fully Spectral
klaus
klausSingle Emitter
asked in Code Exchange
Export volume detector data Zemax?

 Hello Forum,I got a volume detector with 100 x/y-planes in the z direction (#z-pixels). See screenshot below.When running NSC ray tracing I want to save all of them to individual text files 1;2;3;4;5…. 100automatically if possible.Any suggestions of using a macro would be appreciated. Thank you Klaus 

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klaus
nc9289
nc9289Infrared
asked in Code Exchange
How to sum POP beams coherently

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

680
nc9289
Michael Cheng
Zemax Staff
Michael ChengZemax Staff
published in Code Exchange
Python SPEOS and Zemax Source file converter

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

8881
yuan.chen
Zemax Staff
Michael Cheng
Zemax Staff
Michael ChengZemax Staff
published in Code Exchange
DLL (Surface Scatter) Non-Sequential Lambertian Depolarizer

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  

6022
Kris
David.Nguyen
Luminary
David.NguyenLuminary
posted in Code Exchange
User-defined Operand: Modulo operator

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

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David.Nguyen
Luminary
Ascho
AschoSingle Emitter
asked in Code Exchange
LDE - using Tilt/Decenter Pickup this surface

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.

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Ascho
sgimeneza
sgimenezaSingle Emitter
asked in Code Exchange
Zernike Coefficients for Zemax and Shack-Hartmann Relationship

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

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Mark.Nicholson
Luminary

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