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Alberto.Donazzan
Ultraviolet
Alberto.DonazzanUltraviolet
asked in Got a question?
TDE window is not restored in position upon file reopening

As per title, do you confirm the Tolerance Data Editor window does not get restored when closing and re-opening a zmx file?

374
Alberto.Donazzan
Ultraviolet
41 minutes ago
OnurBK
OnurBKSingle Emitter
asked in Got a question?
POP vs Step file

Dear all,We are modeled a prism as step file and as pob (polygon object) and used them in ocular system. We obtained different effl values for two objects in mixed mode. What can cause this difference? Best Regards,

50
OnurBK
6 hours ago
dan_alon2024
dan_alon2024Single Emitter
asked in Got a question?
Car headlamps simulation

Hi,I would like to simulate a car headlamps (several types) with OpticsStudio. I need to use exists illumination models (and not write it by myself, because I don't have any access to the technical information of real headlights.How can I achieve these models?ThanksDan  

433
Y
13 hours ago
whit2452
whit2452Monochrome
asked in Got a question?
Issue ray tracing after mirror reflection - curvature of radius fails

I am running into an issue placing lenses following a mirrored surface.  Here is my design in sequential mode: Then I add K-mirror before the lens assembly in non-sequential mode:  After the mirrors are added changing the curvature of radius of the lens assembly fails. The light is not reflected through the lenses and Zemax draws the lens as large circles. Any clue as to what is causing the issue?    

866
MichaelH
Luminary
16 hours ago
jsung
jsungInfrared
asked in Got a question?
Is there way to view CIE x, y map on illuminating target in NSC?

My question is exactly as title above. Detector color gives true color map view on it with just X, Y, Z values in raw text data. But it’s more useful to have that as CIE x, y or u’ v’ data set. I know how to convert between these values using Excel, but if Zemax can generate, display that it would be a lot more convenient. Mine is 2024 R2 Preimium but I don’t see that option yet.

80
jsung
16 hours ago
SPJensen
SPJensenSingle Emitter
asked in Got a question?
Phase Errors Reconstructing .ZBF Text File

I used Matlab to write a .ZBF text file for POP.  When Zemax reads the file in the irradiance is perfectly replicated but the phase is not; when non-zero the phase looks like random noise. This is very strange because you need to write the .ZBF file using Re and Im values for the field. Unless the Re and Im values are both correct in the file you can’t get the correct irradiance values. I have done this before and it worked so I had a friend with an older version of Zemax installed (22.1.2) check the same file. His version of Zemax correctly replicated the phase. I am using version 2023 R1.03 on a windows machine. Any ideas as to why this is happening? Did the .ZBF format change? Is there now a setting I need to adjust in Zemax when I import a file? Is this a known problem that has been fixed in an update? Matlab intensity:Zemax IntensityMatlab PhaseMy Zemax Phase:Old Zemax Phase: 

60
SPJensen
16 hours ago
N
Nicholas.CroglioMonochrome
asked in Licensing and Installation
How do we get the New ANSYS licenses to work?

The process to get the new ANSYS licenses to work is a nightmare!They do not have record of me being under support after paying more for support that my original license cost.Noone answers the help line!The instructions are garbage and some of the links do not work.The ANSYS system has no record either. [Mod edit: updated the title of the post.]

28213
Allie
Zemax Staff
18 hours ago
gsun86
gsun86Single Emitter
asked in ZOS-API
ZOS-API C++ sample code can't compile in Visual Studio - no ZOSAPI.tlb was generated

Need help to run through the ZOS-API C++ sample.  In zosapi.h:#import "C:\\Users\\gangs\\OneDrive - kochind.com\\Documents\\Zemax\\ZOS-API\\Libraries\\ZOSAPII.tlb"#import "C:\\Users\\gangs\\OneDrive - kochind.com\\Documents\\Zemax\\ZOS-API\\Libraries\\ZOSAPI.tlb"// Note - .tlh files will be generated from the .tlb files (above) once the project is compiled.// Visual Studio will incorrectly continue to report IntelliSense error messages however until it is restarted.But the *.tlb files were not generated after build and restart the Visual Studio, and can’t proceed.Thanks,

140
gsun86
19 hours ago
E
Zemax Staff
Erin.ElliottZemax Staff
posted in STAR Module User Group
Rigid-body motions (RBMs) in STAR, Part 5:  Converting RBMs to Coordinate Breaks

In STAR, the Component RBM tool allows us to extract RBMs for a lens or mirror and automatically convert them to coordinate breaks.  Considering the FEA data on all surfaces in the optic, we calculate any RBMs that are common to the surfaces, to find the motion of the optic as a whole.  The component-level RBMs are reported, and a button converts the common RBMs into Coordinate Breaks.Currently, this is a one-way transformation, so users are prompted to save their original file before converting to Coordinate Breaks.(Extracting RBMs can be carried out for each surface individually, as well, to accommodate mirrors.  We could declare each surface of this lens as a separate component, and extract the RBMs for the front and back surface’s deformation data separately.  Note that currently, nesting of RBMs is not officially allowed, though there are some clever workarounds possible.)The Component Rigid-Body Motion tool in STAR allows users to automatically calculate RBMs that are common to t

584
E
Zemax Staff
21 hours ago
Alberto.Donazzan
Ultraviolet
Alberto.DonazzanUltraviolet
posted in Got a question?
ISO Element Drawing: open issues

I'd like to point out some mandatory features which, in my humble opinion, the ISO Element drawing utility lacks. I'm probably referring to all well known issues, but still, I believe them to be of paramount relevance to be left unsolved over the years. 1) support for triplets. 2) xml file support for doublets/triplets. More on this, I report a sneaky behaviour of the current feature: if a doublet design is saved, no error is reported by OpticStudio and an empty xml file is saved instead, so that the average user can believe its manually inserted data are securely saved, but actually they are not. When opened, such xml file just reports the string 'XML output is not currently supported for doublets'. 3) drawings saving in a native vector format, such as pdf or svg. At the present time an external pdf printer sw is needed to do so, often with unpredictable results. The same request holds for every graphic output of OpticStudio (diagrams, histograms, plots,...). The cha

58616
Alberto.Donazzan
Ultraviolet
1 day ago
Mike.Jones
En-Lightened
Mike.JonesEn-Lightened
asked in Got a question?
What is going on in NSC Shaded Model?

Version 24.1 NSC Shaded Model hangs up big time, especially after I minimize it then restore it.  No response at all to mouse or keyboard.  I have to kill it and restart it.When will this bug be fixed?  This is a BUG, not a feature.  Please repair in an interim release.Mike 

2318
jsung
1 day ago
Sean
SeanMonochrome
asked in Licensing and Installation
using red key on a new computer

I have a Zemax 16.5 SP3 with a red key. I want to use it on my new computer with Windows 11. After installing the Zemax 16.5 on the new computer and plug in the red key, there was no key information in the Zemax License Manager and I couldn’t run Zemax. The red key was light on for a couple of seconds and became light off.Could anyone please assist? Thanks!

622
Sean
1 day ago
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  

5444
Michael Cheng
Zemax Staff
5 days ago
bgdi10262
bgdi10262Monochrome
asked in Got a question?
How to create an input beam with different x and y divergence

Hi Everyone, I am struggling with creating an input beam that has different x and y divergence. The beam located at object space is elliptical and diverging very fast in one direction and slowly in the other. Is it possible to use object space NA and vignetting to realize? Thank you so much!Di

502
bgdi10262
5 days ago
Shenwu Yang
Shenwu YangSingle Emitter
asked in Got a question?
How to set the Y start order and Y stop order of grating object via API?

I got an issue when I set the parameters of grating object via API.When I set other parameters of grating object via API, the preset Y start/stop order will change to 0 automatically.And I am trying to find a function to set the Y start/stop order in API, it turns out there is only property named start order can be set.So this issue is the Y start/stop orde will be changed to  0 automatically when I am setting other parameters, and I cannot set the Y order via API.  

241
David.Nguyen
Luminary
5 days ago
jsung
jsungInfrared
asked in Got a question?
How to model surface scatter for Mold-tech or VDI textures

I often need to model lenses or diffuser plate with some texture grains applied on some part of it. Normally it’s called out as Mold-tech or VDI texture grain, which are commonly used for surface diffusing optical elements.The question is how do I apply that correctly in the Zemax optical model. Is there any DLL library for that or should I use Gaussian or AGg to approximate that? Problem is there is no available data to correlate such scatter model to Mold-tech definitions.

140
jsung
5 days ago
jsung
jsungInfrared
asked in Got a question?
Best way to create and optimize TIR lens in NSC mode

Hi, I’m trying to begin designing TIR lens with outer TIR surface and inner lens surface in small cylindrical hole. I guess most optical engineers understand what I mean by that. What is best approach to this in NSC. I’m thinking of three options.Use boolean combination of lenses and cylinder. I think this is illustrated in a KB article. Using freeform Z object with surface profiles parameters. Using part designer.I guess there are pros/cons of each method above. I’m more interested in 2 and 3 which I didn’t see illustrated in any KB article or training materials for OpticStudio yet. What are your thoughts and recommendations?

474
jsung
6 days ago
K
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?  

461
Niki
Zemax Staff
6 days ago
N
NimMonochrome
asked in Got a question?
Error message when uploading a grid sag file

Hello, I’ve created an eye model based on real measured patient data. The anterior cornea is a measured XYZ data. The resolution of the file is 0.02 mm. When trying to upload this file to the system I’m receiving an error message as followed:AllocGridPointers: ‘newsize’<=0 I’m trying to understand why this happens and how can I fix this. Is the resolution of the file is to small? or there is something else I’m not taking into consideration? Thanks,  *The dat file is attached in the ZIP folder

261
David.Nguyen
Luminary
7 days ago
E
Zemax Staff
Erin.ElliottZemax Staff
posted in STAR Module User Group
Rigid-body motions (RBMs) in STAR, Part 2: A simple singlet

In the attached file, we’ve created a simple singlet with (artificial) deformation FEA data for the front and back of the lens.  The FEA data includes a decenter of Y = 1 mm and a tilt about X of 3° for the lens as a whole.  Also, the higher-order deformations on the front of the lens convert the spherical front surface to an asphere,  to correct the spherical aberration in the system.  (Warning: It is not usually the case that deformations on an optic make the performance better!)The singlet is shown below, and the FEA deformation data is displayed using the Multiphysics Data Viewer in STAR.A singlet lens, and artificial FEA data that introduces a Y decenter of 1 mm and a Tilt About X of 3 degrees.Next, we use the Multiphysics Data Loader to check that the FEA data is aligned to the front and back surfaces of the lens, and proceed to fit and load the deformations onto the lens surfaces.Applying the FEA data to the singlet using the Multiphysics Data Loader.After fitting, the Structura

1218
Mark.Nicholson
Luminary
7 days ago
bgdi10262
bgdi10262Monochrome
asked in ZPL
How to use ZBFTILT?

Hi Everyone,I would like to ask how to use zbftilt? The help document reads a bit confusing: This keyword requires the name of the ZBF file and four numbers. The phase of the beam is modified by a phase angle given by θ = ( x – cx )tx + ( y – cy )ty . The cx and cy values are the center of the phase tilt, and tx and ty are the slopes of the tilt in units of radians per lens unit length. The coordinates x and y refer to positions within the beam file, with the center coordinate (x = 0, y = 0) being at the point (nx/2 + 1, ny/2 + 1) where nx and ny are the number of points in the x and y directions. The length units in the ZBF file are converted automatically to the current lens units. The resulting data is written back to the same file name. If I want to rotate an elliptical beam mode by 90°, how should I write it?Thanks!Di

697
S
Ansys Staff
8 days ago
B
Benoit.BorguetInfrared
asked in Got a question?
System throughput

Hello,I was wondering whether the tools available within zemax would enable assessing the throughput of an instrument. Specifically, I can estimate the number N of photons gathered in a pixel placed at the FP of an instrument as: N = R * p**2 * pi * wave * T / (4 * F#**2 * h * c) where R is the scene radiance, p the pixel size, T the system transmission, h and c are Planck’s constant and speed of light. My assumption is that, at first order, I can simply use WFNO operand value along with the transmission factor from the transmission analysis since the latter takes into account all coatings defined as well as the vignetting defined by any aperture in the model. Or am I missing something? Thanks in advance for any insights,Regards

654
B
8 days ago
Mubeen Mahmood Puthiyangadi
Mubeen Mahmood PuthiyangadiMonochrome
asked in Got a question?
Non sequential

Hi, i have a optical design simulated in non sequential. I want to convert it to blackbox but unfortunately it is not happening as there is no option to convert to blackbox. Is there any way to hide the design without using blacbox. Since am using some CAD parts its not possible to convert to sequential. In other words is there any option in non sequential where i can hide all the design information?

471
MichaelH
Luminary
8 days ago
Leon
LeonSingle Emitter
asked in Got a question?
I let rays from a point source pass through a cylinder volume, 3mm long, 0.4 mm diameter, the rays exit from the cylinder volume has a multi ring structure. Why?

 

633
Leon
9 days ago
OpticalResearch
OpticalResearchInfrared
asked in Got a question?
Concave mirror lens system design and reservation of field of View ?

Hello, Not quite sure this community is still active?I want to have a lens system which can form the image from infinity to a limited distance as show below.  As you can see that the concave lens system will reduce the input field of view.  How can I have a compact concave lens system which can form the image from infinity to a limited distance and keep the same field of view as the input.  Can you have some suggestions or initial configuration for recommendation?Thank you ! BL 

491
Michael.Young
11 days ago

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