After extracting the PSF with the Huygens tecnuìique, hoe can one extract its radius and the standard deviation of a gaussian fit superimposed to it? What I would like to do is take the PSF of my imaging system (which includes a black box lens) and evaluate the radius of the PSF as a function of defocus. Also I would like to simulate the PSF generated by a homogeneously illuminated pinhole. How would one do that?

Dear person in charge,   Hello, This is Munseok Choe. I am visiting researcher in ITER Organization. I am using ZEMAX to simulate Quasi-optical Gaussian beam propagation in mirror system. My license information is attached in below. To make Gaussian beam as a source in non-sequence mode. I used Gaussiansource.dll in Source.DLL option. However, It can only generate the ray with random sampling. It disturb measuring exact value of power density on detector. Could you explain why sobal sampling is not available? Thank you.   Best Regards, Munseok

Good morning, I am designing a broadband spectrometer (currently in sequential mode). I think someone may answer the following questions way faster than I can. I am interested in measuring the spot size in the dispersion direction (therefore not as a general RMS parameter, as it is usually given). Is there a way in Zemax to automatically measure it through the merit function? I know that the optimization wizard allows to choose a X Weight and an Y Weight. Is there any reference I can read of the topic? Can you advice any specific reference on how to relate the calculated RMS spot size in Zemax to the spectrometer resolution? Thank you very much, Cinzia

Hi I have an OpticStudio project where I am able to import a .STL file and I would like to create detector rectangles from its surfaces. Is there a way of doing that in C++ / C# using the ZOS-API?  I would greatly appreciate it if I could have a starting point. Ideally I would like to create detectors from all of the surfaces, but from what I have seen a detector has to be a rectangle.  Is that correct?  I would like to be able to export the detector data, probably in the form of individual exports for each surface. Thanks in advance Jo Ling   Edited to add:  Sorry, I forgot to put a sensible title for this thread, and I don't know how to update it!

Hello, I'm using the ZOS-API-MATLAB to run many local optimizations within a for loop (where the merit function is of a Physical Optics Propagation result). Since this process is slow, I'm wondering if I would be able to run multiple for loops at once using the parallel pool matlab toolbox and take advantage of my multi-core computer... Would this work or am I missing other bottlenecks in the process that would not allow me to use API in this way? Thanks! 

Hi, I would like to generate a Zemax file with Pythonstandalone mode and going to set  a  ZPL Macro solve in cell (lens x position) . After reading help document of ZOS20.3.2 and try to find syntax of this operation, I still don't know how to write this code to input ZPL Macro name. May I have a simple sample code? thanks   kevin  

Hello, I would like to retrieve current object number in Macro while I choose ZPL macro in solveing type of x position in  pure NS editor. I check Manual and found there is a function that can get the object number. NPRO(surf, object, code,face), but the object parameter  in this function is object number which is what I want to retrieve. How can I retrieve current object number in NS mode while I write ZPL code? Best regards Kevin  

I cannot get the Tilt About X or Y to insert new tilt angle.  And I would like to read from a .txt to do the same but cannot get the write method to initially set or change the Tilt About X - here is some of my code. TheLDE = TheSystem.LDE; %TheLDE.InsertNewSurfaceAt(2); %TheLDE.InsertNewSurfaceAt(12); %TheLDE.InsertNewSurfaceAt(5); Surface_12 = TheLDE.GetSurfaceAt(12); %Surface_5 = TheLDE.GetSurfaceAt(5); TheLDE.GetSurfaceAt(12).TiltDecenterData.BeforeSurfaceOrder = ZOSAPI.Editors.LDE.TiltDecenterOrderType.Decenter_Tilt; TheLDE.GetSurfaceAt(12).TiltDecenterData.BeforeSurfaceTiltX = 5; TheLDE.GetSurfaceAt(12).TiltDecenterData.AfterSurfaceTiltX = -5;  

A user asked why when using ZPL macro to save the Cross Section Row Coherent Irradiance data from Detector Viewer, the .txt file he got does not match the information displayed in the Text tab of the Detector Viewer. Instead of seeing a 2-column data of X position versus Irradiance, he kept seeing 3-column data displaying “Spatial Frequency, X and Y” This is because in his code, the Configuration file is saved with the settings displayed in the Graph tab of the Detector Viewer, where the Cross Section Row is data value #4 in the “Show As:” dropdown list, (the index starts at 0). However, the GETTEXTFILE keyword is retrieving data from the Text tab of the Detector Viewer, where there isn’t a data value #4 in the “Show As:” dropdown list, so OpticStudio simply saves the data from the last available data value #3 which is the “Geometric MTF”. In order to save the data for the Cross Section Row irradiance, you need to use MODIFYSETTINGS

Hi all Surface slope error is considered by lens manufacturer as an essential specification for asphere production. Unfortunately Zemax doesn't still allow directy tolerancing on slope error and it is suggested that user should write a macro to do it. So, here is my question: Does somebody have such a macro that he/she would be so kind to share?  Thank you! Renaud

in this code, I tried to read the number of operands after Setting up the Tolerance Wizard and running it, and see only two operands while it should be many. Anyone know why. Thanks for your kind help!  %! [e14s02_m]     % Set up the Tolerance Wizard and run it     tWiz = TheSystem.TDE.SEQToleranceWizard;     % Specify surface tolerances     tWiz.SurfaceRadius = 0.1;     tWiz.SurfaceThickness = 0.1;     tWiz.SurfaceDecenterX = 0.1;     tWiz.SurfaceDecenterY = 0.1;     tWiz.SurfaceTiltX = 0.2;     tWiz.SurfaceTiltY = 0.2;     % Specify element tolerances     tWiz.ElementDecenterX = 0.1;     tWiz.ElementDecenterY = 0.1;     tWiz.ElementTiltXDegrees = 0.2;     tWiz.ElementTiltYDegrees = 0.2;     % Specify tolerances not to be used     tWiz.IsSurfaceSandAIrregularityUsed = false;     tWiz.IsIndexUsed = false; &nb

I like to edit the ZPL codes but the button of 'Edit' could not open the file, just execute the zpl files. It was working but for some reason, it is not working now at all. Please let me know.

This code calculates grid distortion based on centroid. The advantage is it works for systems where the chief ray cannot reach image surface. Note that, although chief ray doesn't need to reach image surface, there should still be some rays reaching the image surface. This only works when the field type is either Angle or Object Height.  Another useful points of this tool is it shows data on image coordinate, not object coordinate as in the native Grid Distortion analysis.In the generated layout, you can see red and blue marks.Red marks are the centroid position of each sampled field. Blue marks are the 'reference' that serves as definition of 'no distortion'.Note Red marks are the ray-tracing result of your system and cannot be changed. However, the blue marks is defined by ABCD matrix, which can be user-defined. In other words, there is no a standard of 'no distortion'.The macro will automatically find a reasonable ABCD matrix just like the native Grid Distortion, but you can definit

Hello, for example for the GRIN3 Media definition what are the units for the refractive index in z-direction if you set a value in the object properties? In case of Zmax standard units is mm, is Nz1 from 0.001 defined as (0.001 n/mm)*(z [mm])?  Thank you very much and kind regards Julian  

Hi, We are using the python interface to ZOS-API and for some reason it is crashing out. To Debug we attempted to check the app objects precense with the following:      logMessage('App Object Check: '+str(zos.TheApplication)) and it indicates correctly that the object exists:      App Object Check: ZemaxUI.Common.ViewModels.ZOSAPI_Application However immediatly after that call it crashes out with the following: System.Runtime.Remoting.RemotingException: Object '/ef964475_20c0_44b1_b91a_d1be251d9e4c/yqd6tswp6jnufd1newpgn9sc_1.rem' has been disconnected or does not exist at the server. Server stack trace:     at System.Runtime.Remoting.Channels.ChannelServices.CheckDisconnectedOrCreateWellKnownObject(IMessage msg)    at System.Runtime.Remoting.Channels.ChannelServices.DispatchMessage(IServerChannelSinkStack sinkStack, IMessage msg, IMessage& replyMsg) Exception rethrown at [0]:     at System.R

I want to use ZPL to save the graphic result from 'Partially Coherent Image Analysis'. Could you tell me what the correct macro command to use? An example code will be very helpful. Thanks!

Hi,   I'm trying to create a mixed mode model that incorporates the Mie.dll volume scattering in the Non-sequnetial Component.  I find that the rays that original from the sequential system don't seem to scatter in the Non-Sequential Component.  Should this type of a setup work generally?

When the analysis is finished in Zemax, how can I get a text file which including the outputs in 'Text' tab automatically? That means every time I run the model, I can get this text file at the same time. Thank you.

Hello, I'm a student studying optics. I want to measure the optical characteristics by bringing the lens surface file made of matlab to zemax. But I don't know how to use zos-api even if I watch YouTube. So I ask for help from the forum. The solution I thought about is to extract 3D objects from Matlab and put them in zemax, and I wonder if anyone has actually done it. my ultimate goal is to engrave the image of the attached file on the surface of the lens. this is matlab chord clc clear all clf % line space global mm um nm; mm = 1e-3; um = mm * mm; nm = um * mm; pp = 2 * um;  % pixel pitch res = 1024; wvl = 550 * nm; % transmission function T1 = @(F, angles) exp(1j * F .* angles); T2 = @(F, angles) exp(-1j * F .* angles); % equation 5 T_parab =@(theta) exp(1j * theta * round(a * R.^2)); %function y = moire(theta, pyi) global mm um nm; % moire coefficent a = 3.12 * 1e+7;   % grid setup x = -pp * res/2 + pp/2 : pp : pp*res/2 -pp/2; y = x; [X, Y] = meshgrid(x, y);

Hello, Im trying to access to the surface sag data from the analysis menu using Matlab ZOS-API. I was able to generate a new analysis window using 'TheSystem.Analyses.New_Analysis(ZOSAPI.Analysis.AnalysisIDM.SurfaceSag)” However I don’t know how to select a surface and save the surface sag matrix. Could please provide an example on how to do that?

Im trying to define an extended fresnel as DLL file.  I wonder how do I define the refractive surface? How to write the DLL script so OS will understand my intention?  I was thinking about defining the substrate surface as sag1 (with us_stand.c), create new variable- sagf, on which Ill define the fresnel surface, and afterwards to define: sag2=sag1+sagf.  Will this attitude work?   P.S Ive attached an image showing my dll idea

Can you confirm the Data# field of NSDE is not working as expected, both in ZPL and MF? Help reference: The Optimize Tab (non-sequential ui mode) > Automatic Optimization Group (optimize tab, non-sequential) > Merit Function Editor (optimize tab, non-sequential) > NSC Operands  I expect the following to work in fully non sequential mode: ! Detector color object reference det = 4 TotalFlux = NSDE(1,det,0,0,0,0) MaxIrradiance = NSDE(1,det,-1,0,1,0) But actually, the following work for me, i.e. return the correct quantity: TotalFlux = NSDE(1,det,0,0,1,0) MaxIrradiance = NSDE(1,det,-1,0,2,0) Therefore, if this is confirmed, the Data# reported in the table of the Help is wrong and should be incremented by 1. Thank you

when i use getpsf in zpl,  the result mentioned that there are np data points, and spaced by micrometers apart. what does it mean? Is it the average position between the psf data points? also, the data spacing reduces as pupil sampling increases. do you have some references for me to better understand this results.

I’m trying to put together a Matlab script using the ZOS-API. I’ve been following the material in the Zemax Knowledge Articles in MyZemax. What I want to do is gather data from the Physical Optics Propagation and iterate over a handful of different conditions, but retain the phase and irradiance data from each iteration. Using the TheSystem.Analyses, there is no option for Physical Optics. I was wondering if you could provide some insight into this. If you need more information, please let me know. Thank you very much.

Hi,  is there any multiwavelength grating optimization example available in your database? When I search for grating files, I found this example  https://support.zemax.com/hc/en-us/articles/1500005578722-Simulating-diffraction-efficiency-of-surface-relief-grating-using-the-RCWA-method  I am looking for step graded grating example optimized for two-wavelength simultaneously. Currently, I have a Trial License from Zemax. Here is some reference where people have tried this in the past.   https://www.osapublishing.org/josaa/abstract.cfm?uri=josaa-23-1-193  Thanks in advance.