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Luc.van VughtInfrared

asked in ZOS-API

Incorrect datagrid.MinY for Geometric Image Analysis

We recently implemented the Geometric Image Analysis in ZOSPy 1.30. While doing so, we noticed that IAR_DataGrid.MinY does not return the lower bound of the y-axis for the output (at least when compared to the output in OpticStudio itself). It seems to be returning either the upper bound or the abolute value. E.g., when the analysis is centered at (0,0), the x- an y-axes in OpticStudio start at -25 while the API returns -25 for MinX and 25 for MinY. Could you elaborate on what MinY (and to an extend MinX) correspond to. So far, we thought the datagrids and their axes follow the normal matrix conventions, which was the case for all analyses we implemented and used. Is this not the case for Geometric Image Analysis, or is there an error in the API?

523

7 hours ago

OlivierSingle Emitter

asked in Got a question?

EXPP not exactly right? Why?

Hello,I am new here. I believe that the exit pupil is a plane where PARY (0,1) (0,0) is exactly zero (or a very small numerical error). However, in the simple example attached, I read EXPP = -25.26 µm. This difference from zero is bigger than a numerical error. Could you explain why the exit pupil is not exactly where is should be?Thank you,Olivier

291

10 hours ago

CharlieGSingle Emitter

asked in Got a question?

Zernike Phase compensator issue in tolerancing script

I’m having some trouble running a tolerancing script in OpticStudio, where I continually get the “nominal criterion cannot be computed” error when I attempt to run the script. I’ve tracked it down to a CPAR compensator I’ve defined on a Zernike Fringe Phase surface. I’m attempting to use the phase surface Z9 term to null the system spherical for each Monte Carlo file in the tolerance analysis.I’ve confirmed the compensator is defined correctly (CPAR Surf# Param23), and I’m able to set the same parameter to a variable and optimize in the nominal design file, so I can’t understand why the tolerance script cannot implement this as a compensator. If I comment out the CPAR line, the nominal criteria evaluates and the script runs without issue. Can anyone explain why I’m unable to use this compensator?

824

10 hours ago

Sean TurnerUltraviolet

asked in Got a question?

New Export Ray Footprint to CAD feature does not seem to work

I was eager to try out this new feature in 2024 R2.02, but I don’t think it’s working properly. I tried exporting a simple file, one OAP mirror with 9 fields defined. When opening the file in SpaceClaim, I did not see any ray footprints on the mirror. I tried all 4 file type options, and none seem to do what I would expect. Can somebody explain the intended workflow and outcome here?Thanks,Sean

431

16 hours ago

David.NguyenLuminary

asked in Got a question?

Feature Request: ZOS-API Layouts Exports Completion

One year ago, @Xianglei wrote a topic (thanks a lot!) about:Since its been quite painful to generate such plots with ZPL (thanks to @Erin.Elliott, we might get a fix in 2025 🤞):I’ve been using the ZOS-API option more and more to create animations. It is more stable, but currently lacks a couple of options. Since we’re approaching the Christmas period 🎅, this is my wish list to improve the ZOS-API Layout Exports feature (in order of importance):As far as I understand, we cannot specify the file type of the export. I’ve tried to use multiple extensions in OutputFileName (.JPG, .PNG, ...etc.) but the file size remains the same. Based on the file size, which is rather small (for a given image size), I’m assuming the export is made in .JPG regardless of the extension specified. Can the file type be added to the ZOS-API? Could we get a vector graphics file type? Although there’s a property RaysLineThickness, for me, it doesn’t seem to have an effect. If someone is anyway going to look at

764

19 hours ago

jsungVisible

asked in Got a question?

How to avoid ray error when placing source inside Boolean object

I created a TIR lens by creating two objects (one big aspheric lens and a smaller cylinder volume) and forming Boolean subtraction A-B to make void hole through the lens. This is typical shape of TIR lens for LED.Problem here is that Zemax makes error when ray source placed too close the lens in the region of aspheric lens volume although it’s where it is cut off by the cylinder volume. Normally we disable base elements of Boolean object. It works only if the ray source is placed outside the base lens volume. Is there any way to get around this issue in Zemax?

7612

20 hours ago

whit2452Monochrome

asked in Got a question?

How to model interference pattern from diffraction grating

I have a simple system of a laser, pinhole slit, and diffraction grating and having trouble mapping the expected diffraction pattern. I have performed this experiment in real life, and can see the spots align 16 mm apart vertically after exiting the diffraction grating. I have moved my system to non sequential mode and ray traced, but the detector viewer continues to show one giant spot. Can someone please help me better understand what could be the issue here? I am using scattering surfaces.

421

21 hours ago

jsungVisible

asked in Got a question?

Freeform Z object doesn't work for Boolean native?

I tried to do Boolean subtraction with Freeform Z object and cylinder volume in order to drill a cylindrical hole through the Freeform Z lens. But Zemax won’t make that boolean subtraction as I wanted.Is this bug or did I miss something here?

579

1 day ago

Ryan.BurdickSingle Emitter

asked in ZPL

Simple ZPL print statements not appearing anywhere

I’m trying to run a simple macro to test printing to screen:PRINT “Hello world”When I run this, all that appears is a text viewer saying “Executing path/to/macro...” and nothing else. I tried adding OUTPUT SCREEN before the print statement to make sure the statement prints to screen, but same issue.Any advice?

372

1 day ago

nadav.amitaiFully Spectral

asked in Got a question?

Radial grating to binary grating

Hi all, Is there a fast way to make binary grating from radial grating?Some thing like that:Into: EDIT:Well I succeed to make a digital function. How I write it in dll. file?Thanks in advance,Nadav

290

3 days ago

Masahiro KitagawaSingle Emitter

asked in 質問コーナー

座標ブレーク挿入時のPOWP/POWFの振る舞い

添付ファイルのように、X, Y方向の屈折力が異なるレンズを光軸を軸として回転させる場合について質問します。メリットファンクションのPOWF/POWPオペランドで球面屈折力（Data 0）とシリンダ屈折力(Data 1)を表示させた場合、どちらも回転角に依らず一定の値を示すのが正しいと思います。しかし、実際にやってみると回転角88.6°付近で値が急激に下がり、そこから90°までなだらかに下がって0に近付きます。これは何か使い方が間違っているのでしょうか？　それともバグでしょうか？添付ファイルの例では、分かりやすいようにマルチコンフィグで0, 88, 89, 90°を設定しています。球面が0.5D、シリンダが1.0Dで一定のはずですが、MFEで見るとコンフィグごとに値が違っています。（近軸XYで試していますが、トロイダルでも同様でした。）

3 days ago

LeonInfrared

asked in Got a question?

Question about Source Diode

I create a Source Diode file with eliptical ratio of 3 and 0 astigmatism, evergthing including the source sizes are as expected, no problems here, see the raytracing at the left side below. But after I type in a tiny astigmatism of 0.001 (keep everything else untouched), the source size shrinks a lot. What is happening?

372

5 days ago

Indy.MagnusMonochrome

asked in Got a question?

Quantum Yield simulation and definition

Dear all,I have a question regarding the Quantum Yield when used in the Phosphors and Fluorescence Volume Physics section in the non-sequential mode.I have a simple setup in Zemax (file in attachment) where I want to replicate a fluorescence quantum yield measurement. It consists of a collimated monochromatic excitation source, a rectangular volume with the volume physics set, and a polar detector capturing all the scattered and fluorescent light. The absorption spectrum is flat at the excitation wavelength (550 nm), the emission spectrum is an arbitrary curve around 600-700 nm, and the quantum yield spectrum is a single value of 1. I have chosen the extinction coefficient such that around 60% of the light is absorbed/re-emitted and the rest is transmitted normally.With this setup, I would have expected that no light would be lost. However, looking at the total power captured by the polar detector, only 93% of the light remains. Looking at the flux vs wavelength plots shows that we hav

220

7 days ago

Rick VleugelsInfrared

asked in Got a question?

Freeform cylindrical lens

Hello,I am designing some systems using cylindrical lenses and I am exploring the possibility of using freeform lenses, but I don’t have a lot of experience on this. I know there are some surfaces for this available in OpticStudio, but which one can be best used for cylindrical freeform lenses, such that there is only optical power in one direction?Also, what is generally a good way for such a design? First optimize a standard system and from there introduce some freeform variables? Or directly go to the freeform variables?Thanks in advance!

502

7 days ago

RizwanSingle Emitter

asked in ZOS-API

Why aren't C# ZOS-API updating their dlls to be compatible with all target frameworks?

Recently I am developing an internal software by using c# ZOS-API dll. I have chosen .Net 8.0 for my application. After adding the refrences of ZOS-API, it gives me error due to incompatibility of frameworks. ZOS-API has been developed by using .Net framework v4.6.2. If I build my assembly with net framework 4.8, it works fine, but not supports in net 8.0. Why aren't they developing dlls with Microsoft .Net (support cross platform) instead of .Net framework? I have also seen that the headless remoting connection is taking long time. Why aren't they using modern remote procedure framework like gRPC?

574

8 days ago

AllieZemax Staff

posted in People & Pointers

Zemax Consultants List

Hi everyone!Are you looking for a consultant to aid in your design work? Or are you a consultant who wants to get your name out there?This thread will serve as a list of Zemax Consultants. It is a Google-indexed replacement for the Zemax Consultants webpage, which was removed. Thanks to @Donna.Waters for getting this started :).If you're a consultant, please reply with your company information. Include your website and a little blurb about the kind of consulting work you do. Additionally, consider updating your Profile with a signature and some information about your business so other users can see your credentials as you reply to posts.If you are looking for a consultant, please reach out to the consultants via their website or via a private message. Do not reply to this thread requesting services. Please note: the consultants on this list are self-reporting, and are not endorsed by Ansys Zemax. We reserve the right to remove consultants from this list if they fail to meet the standar

6824

8 days ago

Khaled.HassanSingle Emitter

asked in Licensing and Installation

Inquiry about Zemax Pro License

I found that Zemax pro license doesn’t support “User-Defined Plugin for Surface, Objects, Sources, and Scatter Profiles”, Does this include source DLL and fiber DLL, such that this types of sources won’t be supported in the pro license?

662

8 days ago

Renaud.LigotInfrared

posted in Got a question?

ISO drawing edge thickness

Hi In addition to my previous post (“units in the new ISO element drawing”) I would like to point out that the edge thickness annotation that has been added to the ISO drawing in the last update Zemax OS is not always correctly calculated! See example below where the edge thickness is clearly not the sum of the central thickness and the sag of the surfaces (by the way, the SAG are also not correct) . Moreover the number of decimals is a bit exaggerated in my opinion.I think having edge thickness and total thickness of the lens indicated is a real plus (if correctly calculated 😏) but then it would be interesting to be able adding the tolerance on those values.

762

8 days ago

jesusmunozjmjMonochrome

asked in Got a question?

Homogeneus source modeling

Hello everyone,I am attempting to create a homogeneous, squared light source using a rectangular array in non-sequential mode. Despite setting the following parameters:Layout Rays = Analysis Rays = 1 Number of X and Y = 13 Spacing in X and Y = 1I am unable to achieve the desired result: a simple 13x13 array of equally spaced rays. Is there an alternative method to model this type of source? Thank you in advance for your help!Best regards,Jesús Muñoz

431

9 days ago

JenRInfrared

asked in ZPL

How can you write slope cross-section analysis text results to a file?

Hi,I would like to write a macro that runs the surface slope analysis and outputs the “Text” tab results (X-Coord, Y-Coord, and Slope) to a file. I was thinking of using GetTextFile, but I don’t see a string code for surface slope cross section (or slope either). What’s the best way to do this?Thank you,-Jen

778

9 days ago

jsungVisible

asked in Got a question?

How do I know total number of rays in the new ray file?

As per title. I’m not sure if this was asked and answered before.Is there easy way to figure out total ray numbers of the ray file before tracing it?

675

14 days ago

Jiawei LIUSingle Emitter

asked in Got a question?

Can grid sag surfaces be used on object surfaces(surface 0)?

I tried to change the object surface type to grid sag surface and imported the grid surface data, but the surface sag map did not change. When I imported the grid sag data to any other surface, it was displayed normally, so I am a little doubtful whether grid sag surfaces can be used on object surface(surface 0)? If not, is there any other way? I want to analyze the imaging results of a complex target surface after passing through a certain optical system. Can adding a grid phase surface after the object surface achieve my goal? if yes, How to convert the grid sag surface into the required grid phase surface?

401

14 days ago

KrisMonochrome

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. It 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 is simply not sufficient. For instance, ray grouping criteria is not clearly specified, also, the explicit sequence of objects is lost (if a ray enters the lens, is backreflected and leaves the lens t

2763

15 days ago

jesusmunozjmjMonochrome

asked in Got a question?

Array type on sources (NSC)

Hi, I am using Non-Sequential mode in OpticStudio, and I am trying to create a square source from a rectangular array. The problem is that the source only traces rays to a single quadrant of the optical system. I would like to create a square source without having to create four separate sources in each quadrant. Thank you in advance! Best regards,Jesús

453

15 days ago

FrantisekSingle Emitter

asked in Got a question?

Collimating beams with lightpath lenses

I would like to ask you to help with one Zemax file.I use one Lightpath aspheric lens to collimate beam in 30 mm distance.In POP there is some Newtons circles as picture of irradianceIn don’t know, why there is no standard Gaussian distribution of beam. It is looks like some interference of sources……Is it possible, that in lens model is EVEN ASPHERE used ?Or there is some bad settings somewhere ?POP picture, setting and lens data of the lens are in files.Thanks for any answerBest RegardsFrantisek

571

16 days ago

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