DLLs

Ready to create a custom lens in OpticStudio? Find the help you need here!

  • 67 Topics
  • 163 Replies

67 Topics

Cheng-Mu Tsai
Cheng-Mu TsaiStudent
asked in DLLs

How to run the program by python more than twice?

Dear all:I'd like to run a program organized by python. But it can only be executed once as following.In [1]: runfile('D:/untitled1.py', wdir='D:')In [2]: runfile('D:/untitled1.py', wdir='D:')Reloaded modules: CLR, clr, ZOSAPI_NetHelper, ZOSAPITraceback (most recent call last):  File "D:\untitled1.py", line 139, in <module>    zos = PythonStandaloneApplication()  File "D:\untitled1.py", line 20, in __init__    clr.AddReference(NetHelper)AttributeError: module 'clr' has no attribute 'AddReference'I use the anaconda 64 bits with spyder 5.3.3.I have installed the pythonnet by pip install pythonnetAnd it seems working normally so the program can be run once. But it cannot be run more than twice.Does anyone encounter this problem before? 

6
Cheng-Mu Tsai
5 months ago
E
Eyal HollanderMonochrome
asked in DLLs

Variable coating in non-sequential mode

I have a rectangular object that I want to have a variable coating on one of its faces. The coating should be a dichroic coating on part of the face (say 2/3 of one rectangle) and no coating at all on the remaining 1/3.I would also need to update this coating (e.g., change the coated area and coating parameters) and object through ZOS-API, so a dynamic solution would be appreciated.Thanks!

1
S
Luminary
1 year ago
M
Michael.SimpsonMonochrome
posted in DLLs

What settings are needed to debug and compile a dll ?

Zemax has the wonderful ability to add user-defined surfaces and objects, but they have to be compiled by the user into a dll. With the Community version of Visual Studio 2019, does anybody know (a) which components of Visual Studio need to be installed, (b) what settings are needed in order to “Attach to Process…” in order to debug, and (c) what settings are needed to compile routines correctly. The background here is that the user has to look through a set of examples to work out how to do anything, and these are mostly in C, probably from 20 years ago. There are 2 very useful articles about how to compile a dll, and debug a dll, but they are for C++, with no explanation about when and why C++ is needed. Some VS2017 compiler settings are given, but a lot of others are not mentioned, and there is no information about how to install Visual Studio. The ability to debug a file is phenomenal, but they do not attach with VS2017 and VS2019, and there is a message that &ld

4
M
3 years ago
Kazuki
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?

4
Michael Cheng
Zemax Staff
1 year ago
Michael Cheng
Zemax Staff
Michael ChengZemax Staff
posted in DLLs

How to analyze stray light in hologram imaging system

Hello, This post would just like to share how you could find stray light with OpticStudio hologram model.  In the following knowledge base article,  Simulating diffraction efficiency of a volume holographic grating using Kogelnik’s method  we have shared an non-sequential example as below.       It's not obvious, but here are actually some stray light in this example. To find them, we can just increase the Contrast Enhancement in Detector Viewer as shown below.       Then you can find those 0th order ghost!   

0
Michael Cheng
Zemax Staff
3 years ago
A
Adrian.GreweMonochrome
asked in DLLs

User Defined Surfare shows only 12 Parameters in LDE

I am new to DLL programming for Zemax. I have an older file using the Fixed-Data 3 standard. This should support 201 parameters. Unfortuneatly in the LDE editor a maximum of 12 Parameter columns are generated even if i define more. Is there a cap of how many parameters can be displayes as input in the LDE? 

4
Jeff.Wilde
Luminary
1 year ago
CristinaFV
CristinaFVSingle Emitter
asked in DLLs

OPEV / OPEW

Hi,I would like to know how to use the OCOD and OPEV operands with multi configuration files: In case the same operand is present more than once (for example for different configurations) how to read the right one?Also, I want to know if it is possible to use OCOD with mathematical operands, like MINN, or MAXX, and same question, what if there is more than one in the Merit Function?Otherwise, is there a simpler way to read one value from any line in the MF?Thanks, Cristina.

2
CristinaFV
1 year ago
M
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.

6
S
Luminary
2 years ago
O
omena.okMonochrome
posted in DLLs

HELP: GRIN LENSES

Stuck in my research. I need to include some basic simulations of grin lenses using Zemax but i have no clue. I have read a lot and watched couple of videos. I guess I still need someone more familiar to put me through some technicalities. Anyone available to help? I can share my email or my phone number. Thanks in anticipation

0
O
3 years ago
lirong
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. 

1
lyypaul
1 year ago
J
Single Emitter
Jason.SicklerSingle Emitter
posted in DLLs

Mixed Mode + Mie.dll

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?

1
Csilla Timar-Fulep
Zemax Staff
3 years ago
GiovanniCich
GiovanniCichStudent
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.

2
Kevin Scales
En-Lightened
1 year ago
V
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

1
V
1 year ago
Aliaksei.Kobylinskiy
Aliaksei.KobylinskiyInfrared
asked in DLLs

Unable to load UserObjectDefinition function from DLL

Hi, could somebody help me, why I can not use a compiled dll using the code from native cpp-file CoatingSample.cpp? Zemax says “Unable to load "UserObjectDefinition" function from DLL”. I hoped, the code from cpp-files are fully ready to become a dll. (Of course, if I use a native dll called “CoatingSample.DLL” everything works) Thanks!Alexei

2
Aliaksei.Kobylinskiy
9 months ago
A
Ultraviolet
Aleksandr.MakarovUltraviolet
posted in DLLs

NSC detector DLL

How I can add spectral sensetivity to detector in NSC mode?  Can I make DLL detector with this feature?

2
Yair.Saadi
3 years ago
David.Nguyen
Luminary
David.NguyenLuminary
posted in DLLs

Ellipsoid object DLL

Hi all, I’ve seen a few discussions about ellipsoids in non-sequential mode. Notably, @David has shown how the Standard Lens object could be used to build ellipsoids with at least one axis of rotational symmetry in his remarkable answer to the post: Modelling an ellipsoidal volume in non-sequential mode. The Help File also has a section called “Modeling an ellipsoid with the Biconic surface” (The Setup Tab > Editors Group (Setup Tab) > Lens Data Editor > Sequential Surfaces (lens data editor) > Biconic), and the Biconic Surface is also available as a non-sequential object. However, I did not manage to recreate the ellipsoid as depicted in the Help File, which is certainly my fault. In light of the above, I thought it would be a good idea to program a DLL for an ellipsoid object. At the very least, it should have some educational value. You can find the current result of this work in this repository: https://github.com/Omnistic/ellipsoid_object.Here is an example (I’m using

5
Mark.Nicholson
Luminary
1 year ago
D
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? 

0
D
1 year ago
B
Benjamin.DonovanStudent
posted in DLLs

How to simulate a cylindrical lens with variable groove period on the cylindrical surface?

Hi, Is there a way to simulate a cylindrical lens (curve in X-Z plane) with a diffraction grating on the cylindrical surface that varies as a function of X in OpticStudio? Or would I have to write a custom DLL for simulate this? Thanks, Ben

0
B
3 years ago
michadr
michadrMonochrome
posted in DLLs

Looking for someone who has Experience with developing new surface DLL

Hello, I need to create a new surface lens array DLL. Lens parameter changes through array according to some formula (In Zemax  DLL all lenses are identical). Looking for someone who has experience with developing new surface DLL and interested to develop it. Please apply to my personal mail directly.  

0
michadr
3 years ago
J
Julian.PerlitzSingle Emitter
asked in DLLs

GRIN Media Definition of Dimensions

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  

1
Mark.Nicholson
Luminary
3 years ago
amir
amirSingle Emitter
asked in DLLs

looking for "us_gskew.dll" from skew rays to model Gaussian beam propagation webinar

Hi,I’m looking for “us_gskew.dll” shown to be used in “Using skew rays to model Gaussian beam propagation in OpticStudio” webinar.I download the attached zip files which contained *.c file. I wonder where can I find the complied file. is there a reasone why I couldn’t used an allready complied filed? (and instead have to complie it myself)Thank you,Amir

3
amir
10 months ago
Manuel Fragata
Manuel FragataStudent
asked in DLLs

DLL (Diffractive): Binary DOE with terms X0Y1 and X2Y0. Problem in Mirror Space

Hey everyone![All necessary files are attached]I am coding a User-Defined Surface (.dll) to simulate the behaviour of a Diffractive Optical Element (DOE), which in this case will have a phase profile given by the following equation:phase  = (X0Y1 * y) + (X2Y0 * x^2) where X0Y1, and X2Y0 will be coefficients that the user can input in the LDE to later use it for optimization.So far, the code I wrote for compiling the DLL was based on the code written by  @Michael Cheng : “us_binary_mix12.c”, where I adapted it according to my needs. To check whether or not the code is working correctly, I am comparing the rays/beams behaviour when this User-Defined surface is used and when the equivalent “Binary 1” surface is used. If the coefficients X0Y1, and X2Y0 are the same, then I expect the same results, regardless of the surface I use. (Of course, assuming that the units for these coefficients are consistent with each other).Problem: In the front pass of the system, i.e. no mirror space, the res

0
Manuel Fragata
2 months ago
icybird
icybirdInfrared
asked in DLLs

define clear aperture of a lens array

I am using us_array.dll to model a lens array. I would like to define clear aperture of each lens in the array, for example the pitch is 500um, but clear aperture is 400um,  is there a way to do this?Appreciate your advice.

1
Kevin Scales
En-Lightened
8 months ago
Z
Zhenye.LiSingle Emitter
posted in DLLs

How can I calculate the diffraction efficiency of HOE?

Hi, I was trying to calculate the efficiency for user defined surface: us_hologram_kogelnik; I followed the manual and it works fine when the construction is     However, when z2=-23, the efficiency reduce significantly and the plot was like: I’ve already move the image surface to the focal plane. I don’t know if it is correct. Please help me.

1
S
Luminary
4 years ago
PaulFMueller
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
PaulFMueller
1 year ago

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