Hello,I want to draw the object surface with aperture. And in two different configurations, the aperture size of object surface is different.  How can I draw different-size-aperture for object surface for different configurations?  Thank you.Ruik

I want to use the  Zernike Standard phase ,export its  coefficients to Matlab (like the figue2 below  Z11=-11.059).and I use the  Zernike standard polynomial gived by User Guides,like figure3.                                   figure1. All of Zernike cofficients in this surface type 0 except that Z11figure 2. Norm Radius set 10figure 3. Definition（Zernike Standard Coefficients)So, I privately believe that in Matlab the phase expression is and, Z11 =-11.059and I plot the phase and compare  the phase copied from phase cross Section  with the the phase expression based on Matlab （the curve are Normalized）.the result is below Fig4Obviously, They have different shapes，and the superposition of two Zernike coefficients is even more different.figure 4. phase cross Section（blue line）and Expression（red line）So！please~ I want to know how to use the formulas to correctly express the Zernike phase of Zemax, because I need to calculate the light field based on this phase distribution using MATLAB.Th

Hello, I am new in ZemaxI am wondering your sequential tolerance analysis techniques for athermalized lens system. I am trying to do tolerancing on my system firstly by removing MCE because I cannot control tolerances and thermal effects at the same time it gives an error. After that, I run sensitivity analysis. Then, I check worst offenders. By obeying rules of thumb for tolerancing, I am trying to tighten the tolerances by controlling the sensitivities ( I am not successful in this part, though) . Then, I don’t know how to make my lens athermalized again. To summarize, I am stuck in tolerancing, and I cannot develop new technique for myself. Therefore, I need your help so I can find a way to tolerance my system. :( Additionally, I am open for your advice in worst offender’s sensitivity analysis.Thanks in advance!

Hi all, Is there a simple way to do a reflection grating in NSQ mode?Thanks,Nadav 

Hello everyone,Trainee Here! Im trying to simulate a slit lamp illumination design which is used in slit lamps.But im having problem in 2 subjects: Firstly, I cannot add the STL CAD part -which is imported from solidworks-, on the center of the lightpath. Im having a geometry error. Attachment 1 demonstrates it. There are 4 lenses and 1 detector. Slit is between object 2 and 3 .The error I get when i set the Y axis position to 0: Attachment 2 : Secondly, I cannot import the human eye model which is a ZOS file . Attachment 2 . Waiting for feedbacks. Have a nice day !

Hello All,Supposed the definition of grid distortion is the position deviation on the image between chief ray and the centroid one for a specific field point.  Case one: In zemax, for the grid distortion, when select different reference field, why the grid distortion is different?  What is the reference field used for during the plot of grid distortion?  Case two: In fact, if there is a rectangular field grid made of some grid points, given a stop aperture, there formed a grid image. The practical point image position of each field point deviated from their related chief ray position.  Thus the real grid image is different from the ideal image, which also shows the grid distortion. What is the different between case one and case two?  It seems case two is very direct to the grid distortion. Why zemax uses case two? What is the advantage? Thank you,

Is there a training/course that goes through steps of an optical system design for imaging for example? Thanks

Hello. I am trying to ray trace A step file. I was able to import the file fine but need to know how to send a ray through my lens from a 50 micron core fiber to see where on the target they will hit. 

Hi everyone, In the ZOS-API, as far as I tested, after a raytrace, I can’t read the actual wavelength (in um for example) of a non-sequential source object if the properties: Sources..Color/Spectrum of that source object are different from System Wavelengths.For example, if my source object has a Color/Spectrm: Black Body Spectrum of say 2500K. TheReadNextResult(..., out int wave, ...)methods usually only have an integer wave output, which is the wavenumber as specified in the system explorer.My workaround so far is to save a ray database (*.ZRD), and then parse it (it contains the actual wavelength!), but it would really be more convenient if we could access it right away.Has anyone else experienced this issue as well?Take care, David

Hi everyone, I’m new on zemax, I’m designing a two-mirror spherical system and I’m in the process of optimization. I would like to know if there is any command on merit function editor that allows you to optimize my variables such as the radius of curvature and the distance between mirrors imposing that the mirror diameter does not super a certain value. I read about the DMLT constraint but didn’t understand how to implement it in the editor.Thank you 

Is there some way to get irradiance using Huygens PSF?  I’ve tried using POP but it breaks down when I try to simulate it as a point source.

This is probably a very trivial thing. I am trying to keep a surface from moving as I scan a ray across it, but every time I do it, the surface follows the ray and displaces in X and Y to keep it at its center. Any ideas what to do here?

I want to simulate a gradient drawing of scatter points that are placed on an acrylic surface of a wedged light guide. 

I have imported a collimator that I made in Solidworks  into Zemax and started a non-sequential raytrace, I would like to send rays throughs my four lenses but can’t to figure out how to do so.  

Hi everyone, I just have a quick question regarding mapping an intensity map of the output pattern of a source. Are there any applications in the analysis tab of Zemax that can output something along the lines of what is attached below. Thanks for the help!

Dear all,Does anyone knows how can i configure or set up the file metadata or header when .LDT file is exported?I have a NSQ design that uses a LED source (OSRAM 4000K one). When i try to export the .LDT from the polar detector i noticed that the metadata inside the .LDT file shows that CCT is 3000k instead of 4000K.how can i configure that?  I thought that .LDT did not include that parameter.thank you for your help in advanceSP 

Trying to develop optics to spread a Lambertian source uniformly into a cone of some included angle.  Any pointers, links or experience?

Dear all,I just obtained the grid sag surface from the NSC analysis, and I would like to convert it to a freeform surface expressed by extended polynomials. I try to do the surface fitting on Matlab, but the precision is unsatisfactory. So, is there any internal method in zemax can help me to achieve the conversion? Or is there any good algorithm that improves the precision of the 2D surface fitting? Thanks in advanceDaoming

hi,I got a non-sequential simulation model, and I concern the image space NA.I checked the prescription data in this non-sequential model, but anything like F/# and Numerial Aperture is not showing in it. how should I get these value in a non-sequential mode? please advise.   sincerely yoursDavis

Hi, i’m a physics student and i’m new to Zemax and i’m trying to understand if Zemax allows to do what i need and how to implement it. I try to summarize the problem: I would like to implement a cylindrical geometry with coaxial cylindrical volumes. The full length in z is 5.6 m, i.e. z is in [-2.8 m , 2.8 m]In particular i have a cylindrical layer made of aerogel (refractive index 1.03) with inner radius 90 cm and outer radius 92 cm. Then there is a region filled with argon (refractive index 1.0028) with inner radius 92 cm and outer radius 112 cm. Then there is  a quarz layer with inner radius 112 cm and outer radius 112.5 cm. Finally there is a cylindrical surface made of silicon at 112,5 cm. My goal is to consider a ultra-relativistic charged particle (like an electron or pion with momentum 5-6 GeV/c) coming from the center of the system (0 cm,0 cm ,0 cm) and to study the Cherenkov photons produced along the particle track in aerogel, argon and quartz. The primary problem is to unde

Hi everyone  I’ve been using the sequential side of Zemax for the past year, and am now starting to get into the NSQ side. I am trying to use the NSQ optimization to figure out the ROC of a lens that collimates the light for a very simple system seen below. I looked up NSDD, and am also using pre-made optimization methods from the optimization wizard (seen in the merit fx editor). However, when I press the optimization button, it gives me an initial MF of 0, even though clearly my light rays are not collimated after passing through the lens. I’ve tried to read the manual however, nothing I’ve found expalins why this is failing, or rateher, giving the wrong value. What is wrong with my approach?  

when using a user defined custom coating in NSC mode, and defining a single angle of incidence, what happens to rays hitting the coating in a different angle from the angle defined in the coating file?for example: TABLE AR99%_0deg@_755_810ANGL 0WAVE 0.755 0.01 0.01 0.99 0.99WAVE 0.810 0.01 0.01 0.99 0.99what reflection/transmission will have a ray hitting the coating at an angle of 5 deg?

I am using Zemax Opticstudio to study PSF distribution on film space. PSF is based on wave propery of the light. I am wondering how photon moves after the film space using PSF on the film space Photon is particle of the light, so, it has its direction. However, PSF is distribution of the energy and has no direction.  I hope that there is some theories about coverting light wave to photon, but i cannot find. Could tell me if you know? Thank you all 

I’m doing Monte Carlo analysis and I also need the POP encircled energy of each trial. I get POP graph that is actually 200 overlaid encircled energy of all the trials. How can I get the raw data of this bundle of graphs?

Can POP model partially coherent sources?