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Xiaohui.ChangMonochrome

posted in DLLs

OpticStudio can not load DLLs

I tried to use the original Gaussian.cpp in Visual Studio 2019 to create a dll project. I created a default dll project and copied the Gaussian.cpp and tried to build the file. The header file is left empty. The build was successful but when I tried to load into Zemax, it gives error saying cannot load DLL as in the attachment.  

5 days ago

GiovanniCichSingle Emitter

asked in DLLs

Modelling supergaussian beam

Hello everyone,I have to simulate the propagation of a supergaussian beam with a M2=46.9 through the Physical Optics Propagation but I don’t know how to define the beam. I tried to use the top-hat beam, which is a good approximation for my purpose, but its divergence (in POP) does not match the divergence of a supergaussian beam. Thanks for your help.

19 days ago

Yiming.LiuStudent

asked in DLLs

How to get wavelength data using dll in NSC mode

Dear Sir/Madam,I am working on dll for NSC and at the moment did an export of all available data, which dll received during the call from Zemax. However, I do not see the wavelength. Which data[??] I should call to get wavelength/reference wavelength values while developing dll for NSC as an object? Or there is another way around to do it. Please check the attached code with my investigation. Thank you very much in advance!Best regards,Yiming

1 month ago

BT.ParkStudent

asked in DLLs

I tried to create a dll file by compiling grin.c, but Windows SDK 7.1. was not installed.

hello,I want to compile DLLhttps://support.zemax.com/hc/en-us/articles/1500005577602-How-to-compile-a-User-Defined-DLLbut, I couldn’t download and install window SDK 7.1.https://www.microsoft.com/en-us/download/details.aspx?displaylang=en&id=8279There is a message that"this feature is disabled because required .net 4 framework is not installed"as the result ".NET Development" cannot be selected. when i proceed without selecting it, "Installation Failed" will be appeared. Have you ever solved a problem like this?

2 months ago

PaulFMuellerSingle Emitter

asked in DLLs

How does DLL find project name or project folder?

I have many projects using the same DLL (non-sequential object). The DLL is general. The DLL retrieves a unique data file for each project.How does the DLL find or look up the name of the project or the file path for the project (each project is in its own path)?Yes, I can keep this straight manually, renaming, and moving stuff around when changing projects. But why? This is what we have computers for!thanks,

2 months ago

dongdong.wangStudent

asked in DLLs

How to use RCWA DLL to simulate rectangular amplitude grating

How do I simulate a rectangular amplitude grating using the RCWA DLL. I used srg_trapezoid_RCWA.dll for the simulation. I set Index Grate to 1, Index Env to 0.7-7.0i to simulate transmissive and opaque slits, and both substrate and outside refractive index are set to 1. However, I found that the diffraction efficiency calculated by it is quite different from that calculated by using scalar theory in the paraxial region. Also, when I change Index Env (e.g., 0.7-20i) and Depth, the diffraction efficiency changes more significantly. How can I simulate a rectangular amplitude grating that is consistent with scalar theory?

3 months ago

CristinaFVSingle Emitter

asked in DLLs

lirongStudent

asked in DLLs

Question about built-in RCWA visualization tool

Hi,I am confused about Step 4 for the RCWA visualization tool. How can I add wavelengths/angles for plot? It seems I can only change the value instead of adding another slot. Thank you.

8 months ago

KazukiMonochrome

asked in DLLs

Concentric grating setup of blazed DOE imaging lens using RCWA

Is it possible to set user-defined concentric planes of the grating in the features of a blazed DOE imaging lens?

8 months ago

ktalbert

asked in DLLs

DLL Non-Sequential User Defined Object data structure

For the User defined object DLL, Zemax passes a variable “data” to the function UserObjectDefinition. However, I have not been able to find any documentation on what each element of this array is. The examples provide some of the parameters (for example the CoatingSample.dll file gives the first 15 parameters and a few others up to parameter 34, see the code below from the example). Where can I find documentation to understand what other parameters I have access to from this data structure? The data ZEMAX sends is formatted as follows: data[2], data[3], data[4] = x, y, z data[5], data[6], data[7] = l, m, n data[8] = coat group number data[9], data[10], data[11] = normal nx, ny, nz data[12], data[13] = current and next index of refraction data[14] = cosine of normal incidence angle data[15] = wavelength in µm data[20] = zero flag. Set this to 1.0 to indicate the DLL computes the coating data, otherwise, ZEMAX will compute u

8 months ago

VincentSingle Emitter

asked in DLLs

how to make a dichroic filter DLL to apply in a volume surface, not just a 2D surface?

hi,it’s easy to make a DLL working as dichroic filter in the surface scatter way, by just changing the specular ray direction according to its wavelength in the DLL. however, it seems it only works in a 2D surface, and when it goes to a volume surface with different refraction index from the air, especially when the ray needs to reflect at the surface inside the volume, it can no longer work normally. examples illustrated as follows:I analyzed the cause through ray tracing and ray database viewer, and found that if the ray made reflective mandatorily inside a volume via the DLL by one of its surfaces, zemax has no way to know the reflected ray by the surface is still inside the volume, as it seems zemax does not provide such an interface in the function “UserScatterDefinition” .I hope to consult zemax development engineers and also guys with related experience, how to solve this? thx in advance!and I also wondering why zemax does not provide the incident ray direction cosines and why

9 months ago

Donna.WatersInfrared

asked in DLLs

How to make a source in non-sequential that looks like a letter?

I’m interested in modeling an OLED display that’s displaying the letter P. The brute way to do this would be a series of lambertian point sources that form that shape. Is there a better way? Maybe with a dll or a CAD object? Thanks!Donna

10 months ago

samiaStudent

asked in DLLs

Modeling a Diffractive lens in a sequential mode with a DLL

Hello,I would like to know how can I create a diffractive lens in a sequential mode using a dll ? Thank you.

11 months ago

Dries

asked in DLLs

Source Two Angle DLL

Hi there, I am trying to write a source DLL file to use in OpticStudio, which is based on the built-in source “Source Two Angle”. It would be great if I could use this as a starting point. Is the (cpp) code available for this source? Or is there something similar I could start with? Thank you!

1 year ago

Manuel.EndresSingle Emitter

posted in DLLs

substitute for surface apodization in basic version

Hello I have a license for basic version of OpticStudio. I need to apply an apodization filter to a surface in order to program the transmission to be a Gaussian function. But it seems that the 'filter' type of surface is only available in the premium version. Is there any substitute for this function that I can use? Thank you.

1 year ago

shamim.pirouzfar@sick.deMonochrome

asked in DLLs

gaussian beam in non sequential mode

I need to simulate a gaussian beam in non sequential mode, which has 850 nm wavelength, 15 degree diveregence angle (half angle) and the beam raduis of 2.563 mm at 10 mm which has the cross section of the beam profile shape as attached below, but when putting this values using the Gaussian source it doesnt give me the same results. By using the skewRaysCircular I cannot get the gaussain beam profile and it just shows me a ring, how can I get a gaussian beam profile in the output?

1 year ago

PhGeekUltraviolet

asked in DLLs

SkewRaysGaussian: need DLL supporting general astigmatism

I was pleased to see the new NSC Source DLL 'SkewRaysCircular.dll' added in the May 19 release (OpticStudio 20.2).  We have immediate use for it in modeling our systems. It was inspired by the similar (sequential) User Defined Surface DLLs discussed in Paul Colbourne's webinar and KnowledgeBase Article KA-01772, which allows optimization of generally astigmatic Gaussian beams in Sequential mode. But I was disappointed to see that the new Non-Sequential Source DLL only models CIRCULAR Gaussian beams with no astigmatism, unlike the Sequential capabilities that were supplied by Dr. Colbourne, which accommodate general astigmatism! I suggest updating and replacing SkewRaysCircular.dll with a new, more general, Source DLL, renamed appropriately, e.g., SkewRaysGaussianXY.dll , that DOES support general astigmatism.  This would seem simple enough to implement starting from the existing SkewRaysCircular.dll:  add new pairs of parameters for WaistX, WaistY, (and/or SIzeX, Siz

1 year ago

Sandrine AuriolZemax Staff

posted in DLLs

How to pass more parameters to a User-Defined Surface DLL?

A user-defined surface DLL will retrieve information from OpticStudio via the FIXED_DATA5 structure defined in the header file. An example of the header file can be found under '\Zemax\DLL\Surfaces\usersurf.h'. To access the surface parameters, the DLL reads the variable param in the FIXED_DATA5 structure: If we need to pass more parameters to the DLL, one way can be to use the datasurf_numvalues and datasurf_values. To use this, a 'Data' surface has to be used. Below I have taken a screenshot when debugging a user-defined surface: I hope this helps but do not hesitate to share your comments. Sandrine

1 year ago

dongdong.wangStudent

posted in DLLs

Some RCWA DLLs cannot be found in OpticStudio 21.2.1

Hi, I was reading Michael Cheng's article 'OpticStudio grating tools beta function update history' and have some questions. This article mentioned 'download link' many times, but I did not see these corresponding links. And I did not see some DLLs mentioned in this article in OpticStudio 21.2.1, for example: 'Polygon grating DLL', 'A new DLL is created for reading pre-calculated efficiency data for 1D/2D gratings'. I want to know where I can find these DLLs and their usage. Thanks & Regards, Dongdong

1 year ago

Marta.RozhenkoStudent

posted in DLLs

Comparison of custom dll surface and CAD lens

Hi all!  I have done user defined dll surface and want to check its accuracy. For this, I did a lens with such surface on one side and plane on the other in SolidWorks and opened it like .STEP file as a non-sequential component. In the second Zemax file, I opened my user-defined dll. All dimensions, apertures the same. Also, I can see that rays go through the lens in almost the same way. Spot diagrams look very similar. But I want to compare the wavefront map and here I have a huge difference also ray fan very different and I cant understand the reason. It's my first time with non-sequential mode, maybe someone can help me with good advice? Thank you a lot 

1 year ago

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