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samiaStudent

asked in Got a question?

Problem with the access to a DLL code

Hello,I don’t have access to the code of the us_ReliefDiffr.dll, can somebody help me ? Thank you [Mod note: moved to more appropriate forum for OS-related discussions.]

1 year ago

Luca.cellerinoVisible

asked in Got a question?

Simplified imported CAD model.

Hello everybody,I would like to assign the catadioptric characteristic to a surface without drawing it in the CAD or without defining Boolean operations that would make the CAD model extremely heavy (I am attaching an explanatory image). Is it possible in OS?Thanks a lot to the whole community.

1 year ago

HuangJKStudent

asked in Got a question?

How does ZEMAX OpticStudio deal with obliquely incident beam in terms of polarization?

Hi all. I am trying to use the ZEMAX non-sequential mode to simulate a Martin-Puplett interferometer. In the system, there is a polarizing beam-splitter to separate incident x- and y-polarized light to two different arms. Then the two separated beams will be reflected back to the beam-splitter by two roof mirrors and be recombined to propagate to the output. There should not be any light going back to the input, because roof mirrors can change the polarization by 90 degrees, so x-polarized light will change to y-polarized and vice versa. I use a Dual BEF Surface to simulate the beam-splitter, but as a result there is light going back to the input, which is not real theoretically.So in order to test how ZEMAX deal with polarization of obliquely incident beam, I tried to let a beam incident to a Jones Matrix Surface with A,B,C,D = 0 obliquely. Such a Jones Matrix Surface should block all light, but as a result the light can still propagate through the surface.So my question is, why the m

11 months ago

MarkusUltraviolet

asked in Got a question?

Unexpected results for System Efficiency in the Fiber Coupling Tab

Dear Experts,I have an optical system entering through two optical wedges (9deg wedge angle) and going through some focusing optics coupling into a SM fiber. I use the wedges for beam deflection. With a coordinate break I make sure to get the beam to the single mode fiber. I have several configurations to simulate different angle (0deg to 57deg).With the fiber coupling window I can see the fiber coupling efficiency. From the plots you can see that mainly the first surface of the first wedge causes significant vignetting, which is in addition depending on the angle. At larger angles the aperture of the wedge becomes effectively elliptic, shrinking the short axis with the cosine of the angle. Therefore, also the System Efficiency should drop with the cosine of the angle.31.5mm the radius of the wedge, 50mm the radius of the aperture. First one at 0deg, second one at 57deg. I added 0.8 to roughly model the Receiver Efficiency:>> 31.5^2*cos(0/180*pi)/50^2*0.8ans = 0.31752>> 31

1 year ago

RyanMonochrome

asked in Got a question?

Ghost Focus Generator in Zemax API

I’m trying to write a script using the Zemax API to run the ghost focus generator, save the files, and then do analysis on the resultant files.I don’t see anything in the documentation for the API about running the ghost focus generator and searches of the API documentation turn up no results. Is it possible to run the ghost focus generator from the API? If so, where can I find the syntax?Thanks!

1 year ago

ztystarInfrared

asked in Got a question?

How to set up the polarization state seperately for object and reference beam of recording a hologram?

Hi all, I am trying to model a hologram to analyze its diffraction efficiency in Zemax. However, I am curious how to seperately set up the polarization state of the object and reference beam, for example, one is s-polarized, the other one is circularly polarized? Thanks,Kaden

1 year ago

AsukuInfrared

asked in Got a question?

Operand to fix Back focal Plane Position/Length during optimization (Sequential)

I would like to design a microscope objective(s) with a fixed parfocality and Back Focal Plane (BFP) with respect to a given surface.For example:Objective 1: parfocality Z mm, BFP position from vertex of last surface = BFP1 mmObjective 2: parfocality Z mm, BFP position from vertex of last surface = BFP2 mmHow can I design these two objectives (in multi-configuration if necessary) such that I can optimize the designs around a given BFP position with respect to a coordinate surface (assume surface 0). For instance; the BFP position should be constrained to 3mm from Surface 0. What operands can be used to control the focal planes/focal lengths (rear and front) of a optical design in Zemax? When designing multiple related optics - such as more than one objective lenses for a microscope which share common parameters. What is the best practice to control the common parameters such as parfocality and BFP position between these multiple objective designs?Thanks

1 year ago

Fehim.BagciSingle Emitter

asked in Got a question?

Optimization of illumination pattern in sequential mode

Hi,I have an illumination design layout in sequential mode below. And I am observing the illumination pattern using geometric image analysis. The question is how to control, optimize the illumination pattern parameters like the size, uniformity efficiency etc. in merit function in seq mode? Is there a method to optimize for geometric image analysis result.

1 year ago

Stefan.TrotzkyMonochrome

asked in Got a question?

UDA file location (ZOSAPI)

Hi.I am looking for an efficient way to manage large collections of user-defined apertures from the ZOS-API. As a compatible use-case, think e.g. of a database of eyewear lens shapes. The lens shapes (defined as UDAs) would ideally live in a case folder together with other information about the eyewear (think: prescription, etc.), and not in the standard folder used by Zemax. It seems like the only file location that UDA files can be loaded from to configure a ZOSAPI.Editors.LDE.ISurfaceApertureUser. is <Zemax>\Objects\Apertures. Passing a full path -- I am using python’s os.path.abspath() and have also tried just the verbatim path as raw string -- to the user aperture interface’s ApertureFile property does neither cause an error, nor result in the aperture file being used. Passing simply the name of a UDA file that is located in <Zemax>\Objects\Apertures works as it should.The location of the “Apertures” folder can only be changed by changing the location of the “Objects”

11 months ago

SugunaStudent

asked in Got a question?

Simulating optical illumination system.

How to define Led light source and light from it is carried by fiber optic cable to the optical system in the lens data editor. (The end of the fiber optic cable is a circular plane surface.)

1 year ago

SoundararajanlrSingle Emitter

asked in Got a question?

FOV measurement of a VR headset in NSC mode

Hello all.I am trying to find the field of view of a VR headset from four corners of a display screen ( 90 mm x 90 mm) using non-sequential mode. I considered the corners of the display as source points and focused using a Fresnel lens (f=50.1 mm) on the retina. The rays are unable to reach the retina and what is the best way to get this done?

1 year ago

Thor81Monochrome

asked in Got a question?

beam splitter in sequential mode - correct reflection of rays

Hi,i am trying to make a dichroic mirror (beam splitter in this context) work in sequential mode.I worked through two tutorials, ‘How to model a dichroic beam splitter’ and ‘how to model a beam splitter in sequential mode’. The problem is that my mirror is not a cube but a thin (1mm) plate. The plate has a coating on the back. For the reflection pathway, the rays need to go through the plate, then get reflected and again go through the plate and leave it in a 90° angle in regard to the incoming rays. When I try to use coordinate breaks to bend the optical path by 90° in a way that they are getting reflected I get a weird lens design (see below). I have played around with different parameters on the coordinate break and also used the add fold mirror assisant, but its not doing what i want it to do.This is how the rays should go. The coating is at the back of the plate, so the rays have to pass the plate twice.This is how the subsequent lens looks like:It appears in a weird shape, changi

1 year ago

MonteMonochrome

asked in Got a question?

MonteMonochrome

asked in Got a question?

How to open Merit Function Editor window with a macro.

Hello, I am writing a macro to open up all the windows I am interested in for a project I am doing. I have figured out how to open up analysis windows, however I have not figured out how to open the merit function editor window. How can I do this?Also, a less important bonus question, is there a way to dock windows in a certain way from a macro?

1 year ago

MonteMonochrome

asked in Got a question?

Can you optimize for airy disk radius in the merit function editor?

1 year ago

mcwiklaInfrared

asked in Got a question?

ZPL Macro in NSC: plotting and saving the analysis

Dear Community,My approach is to use Macro in NSC for saving the text (rough data) from the flux vs. wavelength analysis. I want to start with simple macro where only raytracing and saving the rough data from flux plot is performed. So far, I only managed to find operand NSTR for ray tracing and it work fine. Can you suggest the solution for this? Thank you,Michał Ćwikła

1 year ago

Luca.cellerinoVisible

asked in Got a question?

Clean CADfile directory

Hello everybody,I wish I could clean the CADfiles directory of anything unwanted as the number of files inside is growing exponentially.Do I have to proceed by hand or is there a best practice to be able to operate at best?Thanks a lot to everyone.

1 year ago

AsukuInfrared

asked in Got a question?

How to bound compensator surface property to certain range?

I have a macro for displacing a particular lens in my system and after each induced displacement error, I call OPTIMIZE on the compensator surface; say Surface 0 with Thickness as the compensator variable. Doing so blows up the thickness value based on the optimizer output. How do I apply bounds to the compensator surface property ?

1 year ago

cloMonochrome

asked in Got a question?

Enclosed Energy (diffraction) : optical system analysis

Dear all, I have two different opticals systems with the same intrinsec charateristics (NA, working wavelength, field, ...). To compare the two designs, I want to use the enclosed energy radius at 80%. But when comparing the two designs, the diffraction limited enclosed energy curve is not the same (like if it was taking into account the aberrations). I read the pages 1095 and 2460 of the zemax help about diffraction limite but I don’t really understand how it is calculated. Why is it not only the Airy disk ? How can I compare my two systems ? Thank you very much in advance for your response, Kind regards,

1 year ago

Hui.leung

asked in Got a question?

Modeling laser beam exiting an angled fiber

How do I model a laser beam coming out from an angled polished single mode fiber, both in non-sequential and in sequential mode? [Mod note]: This was originally posted as a reply to July’s AAE event; however, the question is one that is outside of the scope of that event so the moderators have moved it to its own post.

1 year ago

Önder.SönmezFully Spectral

asked in Got a question?

Which tools to use when working on a Head-up-Display? Tutorials & Applications shared .zar file is not opening

Hello everyone, For somewhile I am trying to pursue the https://support.zemax.com/hc/en-us/articles/1500005577782-Which-tools-to-use-when-working-on-a-Head-up-Display-Tutorials & Applications in knowledgebase,Throughout the tutorial, at specific points there are directions to open the related .zar documents.Upto step 3, every zar files were opened but when I tried to open the“HUD_Step3_NONSEQ_after_tidying_up.zar” file, it gives a message as shown below; HUD_Step3_NONSEQ_after_tidying_up.zarAnybody to make comment on this, before this point of .zar documents every zar docs were properly opened, where might be the error on opening this zar.? Thanks in advance,Onder.

1 year ago

zak9000Monochrome

asked in Got a question?

Focusing of truncated Gaussian beams

Consider a plano convex lens used to focus a collimated gaussian beam , if the beam diameter is almost the same as the lens diameter (45.7mm) we get a geometrical rms spot size of 51um if the entrance gaussian beam diameter is reduced to 20mm, we get a rms spot size of 4um because of reduced spherical Aberration : but if the entrance collimated beam diameter is 150mm , which is 3 times larger than lens diameter we get : Zemax reports a focus spot size of 2.2mm . Clearly this is not correct. How do we model the propagation of Gaussian beam limited by an aperture. How would the diffraction generated by the circular aperture affect spot size? would the effects be negligible or would the spot size degrade of a truncated beam? [Mod note: moved to more appropriate forum for OS-related discussions.]

1 year ago

Carmen LagoMonochrome

asked in Got a question?

Detectors array

Hi!I woukd like to know if it’s possible to create a detectors array.Thanks

1 year ago

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