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2884 Topics
K
Kosuke.KimuraInfrared
posted in Got a question?
Use collimator lens in POP

Hi everyone, I need your kindness help for some problems that I had. I made a system that use collimator lens by using POP (I had attached my file below). I had one problem which is I use the collimator lens (Thorlabs F220APC-633) from the catalog lens and I want to observe the beam width after the collimator lens (surface 4 in my system). I use the merit function editor (POPD- 23,24) to observe my beam width data.  The actual data that I get from Thorlabs stated that the output laser with beam diameter of 2.06 mm will emit after through the collimator lens. But, in my system, the beam width did not have same value as the actual data. In my system, I set the POP with the waist of 0.5 mm and I believe that after the beam go through the collimator lens, the beam width will diverge to 1.03 mm (same as actual data). Is there any suggestion on how to do it, or maybe I don’t understand enough about it. If anyone can help me in order to solve the problems, I really appreciate for y

3855
K
3 years ago
K
Kosuke.KimuraInfrared
posted in Got a question?
Physical Optic Propagation analysis

Hi everyone, I need your kindness help for some problems that I had during analysis using physical optic propagation. I don’t know whether my system is good or not, but I believe can analyze or optimize my system to be better. I had 3 questions that I would like to ask. I use prop report in POP to see each of the surface in my system. What mean by using outside to outside propagator. Is I need to check anything like I tick the use angular spectrum so that my surface become using inside to inside propagator? Or is there another way to solve it. Or I just have to ignore it. Sampling is too low. I use resample after refraction so that I can increase the sampling. Are there any ways so that I can keep the original sampling without increasing it? Inadequate guard band detected. My system shows this warning, and I did not know the ways to solve this problem. Is there any ways that I can use in order to solve it? I am sorry for asking that kinds of problems because I am a beginner

7127
K
3 years ago
M
Muneesh.maheshwariSingle Emitter
posted in Got a question?
Zemax is crashing while raytracing

Zemax is crashing while raytracing. The number of rays is particularly high about 9E9. I am using phosphorescence. I leave it running, after some time when I come back the file is closed. Please help 

1171
Hui Chen
Zemax Staff
4 years ago
M
Marko.ViršekMonochrome
asked in Got a question?
2 different material catalogue definitions possible?

For hammer or global optimization using 'Substitute' I would like to use 1st Material catalogue for 1st lens in the system (or a group of lenses) and 2nd (another) Material catalogue for 2nd lens in the system (or 2nd group of lenses). How to do it?

433
S
Luminary
4 years ago
M
Marko.ViršekMonochrome
asked in Got a question?
Non sequential mode optimization settings

I would like to optimize a 2 lens illumination system for 'high' efficiency and 'high' homogeneity. I have red articles on Zemax page (idea shown in image; starting point was optimized as imaging system in sequential mode). 1st question is impact of detector settings for optimization (I use rectangular detector). What is the impact of detector resolution and #Analysis rays. For example on detector image I am using 21x 12 pixels and 1E5 Analysis rays. Light Source is Source Rectangle with rectangular shape and Cosine Exponent=1. I have used this small amount of pixels to avoid to noise detector result. Is there any guideline? Merit function is defined bellow. IS there any hint how to procedu with optimization regarding homogeneity vs. efficiency? Should both be optimized at the same time or should maybe weight be at first higher for efficiency and later changed?

5721
Hui Chen
Zemax Staff
4 years ago
S
shubham.sharmaMonochrome
asked in Got a question?
How many lenses to have in my optical imaging system ? How do I calculate the number of lens element

How many lenses to have in my optical imaging system ? How do I calculate the number of lens elements required and what type of lens (convex or concave ) to be used? Lets say I am designing a lesn system, I know the sensor specifications, FOV, F/#, . I also know the max diameter and length of the system allowed. Then how would I figure out how many lenses to add in the given system to get sharp and less distorted image. Regards Shubham

533
S
4 years ago
C
CAMILLEMMonochrome
posted in Got a question?
Error when importing STEP file

I just updated OpticStudio version 20.2.2 to version 20.3.2. After upgrading, I am unable to import step files that had previously been imported with no issue. I'm not sure what can be causing this?  

4212
C
4 years ago
Yihua Hsiao
Zemax Staff
Yihua HsiaoZemax Staff
posted in Got a question?
How to get CCT (Color temperature) in the detector viewer?

It's very common to see the color tempture in the lighting industry. Is it possible to get the color tempture for the each pixcel in the detector?

2332
Mark.Nicholson
Luminary
4 years ago
S
shubham.sharmaMonochrome
posted in Got a question?
sport diagram throwing an error

Hi , I am trying to design a lens. When I open the spot diagram for the analysis. I am getting the following error. Can any one help me figure out the error ?

912
Mark.Nicholson
Luminary
4 years ago
Erik.Hebestreit
Erik.HebestreitInfrared
asked in Got a question?
MODIFYSETTINGS for Power Field Map

Hi. I am working with the ZOS-API and try to change a setting (Field Width) in the Power Field Map Analysis. As far as I understood, you can change settings with the MODIFYSETTINGS command. Unfortunately, it is nowhere documented what are the typeCodes for the Power Field Map (and the Power Pupil Map). Can you please provide a list of settings? I found the settings for most other analyses in the ZPL documentation, but not for these two. Thank you and best regards, Erik

1661
Chris Normanshire
Zemax Staff
4 years ago
J
Jaren.AshcraftInfrared
asked in Got a question?
Accessing Polarization Analysis features using the ZOSAPI

I'm trying to figure out a way to pull the text data generated by the Polarization Pupil Map analysis tool in OpticStudio into python using the ZOS-API Interactive Extension so that I don't need to download text files. Does anyone know how to do this?  

1813
David.Nguyen
Luminary
4 years ago
J
John.MitchellInfrared
asked in Got a question?
Non-sequential merit function to optimize an edge emitting optic

Hi, I'm trying to design an optic that will concentrate the light from an LED into a thin disk at 90 degrees to the LED axis . My initial 'guess' comes close (see image) and consists of a boolean combination of native objects (a CPC and an odd aspheric). Now I'd like to optimise it, but am having difficulty writing the necessary merit function (I'm not very experienced with non-sequential Zemax). I am using a Polar Detector and so assume that NSDP is the operand I need to use but can't see how to use it to return the intensity at 90 degree polar angle. Or should I be using a different detector? Any help/suggestions much appreciated ! John  

2796
Giulia Panusa
4 years ago
M
Michael.GirschSingle Emitter
posted in Got a question?
Wavefront

Hello, i am currently trying to extract the wavefront from different single lens systems. I want to get the coordinates [x,y,z] of all rays having the same optical path length. Maybe you can help. Best Michael

580
M
4 years ago
L
Luc.van VughtInfrared
asked in Got a question?
Switching to the text tab of the NSC Detector viewer in the ZOSAPI

Hi, I'm running into a problem with the NSC detector viewer combined with the ZOSAPI and CAD-object as detector. I can succesfully built and trace my Zemax models using the ZOSAPI in non-sequential mode. However, I would like to have the output of the detector viewer text tab (Irradiance + x,y,z) This is where my problem arises. I can open the Detector viewer through the API, but since I do not have a standard detector, I can only get output in the text-tab. When I call DetectorView.Results.GetTextFile() after running the DetectorViewer, the resulting text file shows 'incoherent data' (I assume since I call it while the viewer is on the graph tab). Now when I connect as extension and click the `text` tab myself within OpticStudio, and then call DetectorView.Results.GetTextFile(), the file is correct.  As I would like to run many of these analyses, I would like to automate obtaining the detector viewer results. Is there a way to change tabs through the ZOS-API

1443
L
4 years ago
A
Ultraviolet
AmitUltraviolet
asked in Got a question?
Modeling a receiver optic system for a Lidar

Hello,   I am trying to reverse engineer a reciever camera of a lidar. The wavelength that I am using is 940nm  because to validate this system I will use a 940nm laser as the source. Which preset for the wavelength should be used to setup 940nm? The object is at a distance of 3 meters and I am trying have a wide field of view (i started with 90°H and 30°V but I did not succeed). At the moment I am getting very bad results is terms of spot size and PSF, the image is heavily distorted. Since I am very new to the field, I am not sure what I am doing wrong. Can anyone be kind enough to point me in the right direction? Attaching the zeamx file for reference. PS: I am trying to use lenses from manufacturer's catalogues so that I can build the model easily. With best regards, Amit Pandey

2733
Katsumoto Ikeda
Ultraviolet
4 years ago
sz
szInfrared
posted in Got a question?
Holographic Lens NS behaves different than Hologram1 in Sequential

A Holographic Lens in nonsequential mode should behave the same as Hologram1 and 2 in sequential mode. I used the same parameters to collimate a pointsource under an angle. But while the sequential system is working as suggested, the non sequential is not... I have attached two files to show. Can not find a mistake... a bug??? Best Regards Steffen

381
sz
4 years ago
Matthias.Whitney
Matthias.WhitneyInfrared
asked in Got a question?
Modeling irregularity on an even asphere

I have a design with the lenses out for fab with manufacturers. However, they've come back and told me that due to unforseen tooling issues, the lenses won't meet the irregularity spec. Is there a way to model irregularity on this even aspheric  surface short of increasing TEZI in my tolerancing analysis and rerunning the Monte Carlo? Plot twist: the vendor said they could meet the irregurity spec in the inner zone of the aspheric surface (1 fringe) but the outter zone would be higher (4 fringes).

5269
Mark.Nicholson
Luminary
4 years ago
M
max.sundermeier@rwth-aachen.deSingle Emitter
asked in Got a question?
Torodial Surface as a detector

Hi everyone, I'm trying to create a detector that is orientated around an round mirror. For the detector I'm using a torodial surface in non-sequential mode. In the object properties I declare the toroidal surface as 'Object is a detector' but the detector viewer says 'no detector found'. Does anyone have an idea why that is? thanks in advance.

1284
David.Nguyen
Luminary
4 years ago
A
Anonymous
posted in Got a question?
OPEV issue with Reli

Dear Sir, I am trying to use OPEV to extract relative illumination   When I try to do this I just get an answer 1   See example below.   D=OCOD('RELI')    # test=OPEV(D, pw, 11, 0, 0, 0, 0)     I can not work out why this does not work?   Please help

341
Berta.Bernad
Zemax Staff
4 years ago
Dirk.Broemme
Ultraviolet
Dirk.BroemmeUltraviolet
asked in Got a question?
Source Diode with circular aperture

Hello, I need for my simulation source diode with circular instead of rectangular aperture (without the possibility to model arrays). Thus I would like to know if the DLL code of source diode is available, so that I can manipulate it for my purposes. Thanks and best regards Dirk 

125029
S
Luminary
4 years ago
Stephan.HÖtger
Stephan.HÖtgerSingle Emitter
posted in Got a question?
Edge Thickness at full mechanical Semi-Diameter

Hey there, does anyone here know how to achieve a certain edge thickness at the full mechanical semi-diameter having chip zone turned on? Is there any possibility to use e. g. the edge thickness solve function in the lens data editor for the mechanical semi diameter as well? Everytime I try to set the edge thickness to a certain value the following surface removes itself an unpredicted long distance. Thanks in advance. Stephan

5953
Csilla Timar-Fulep
Zemax Staff
4 years ago
N
Fully Spectral
nadav.amitaiFully Spectral
asked in Got a question?
Exit port

Hi all,   I am using a paralleloid for non sequential ray tracing.  Even through it's not my first time using mixed mode, I have a problem to understand why the rays terminate and do not propagate  after the exit port (surafce no. 6).   p.s The actual system is much more complicated, so non sequential ray tracing must be used.   Thanks, Nadav

643
N
Fully Spectral
4 years ago
M
Mariangela.BaggioMonochrome
asked in Got a question?
Modeling an approximation of a converging gaussian beam in non-sequential mode

Hello, I would like to model an approximation of a converging Gaussian beam source in the non-sequential mode. I first tried to model the source with Source DLL, (Guassianbeam.dll) and use a negative position (Position in the object editor), so that the source is behind the waist, but it doesn’t look like the beams are converging on the waist. Of course, I understand why the divergence angle should always be positive. Basically, my model should be relatively simple: a converging gaussian beam hits a reflective object.The Gaussian beam waist is located inside the object. The detector’s distance from the beam waist is also negative (~-40mm). Perhaps I could use some lens objective to recreate an approximation of what I need, but it would be nice to have the appropriate source directly. I am using non-sequential mode, because there are presumably some multiple reflections occurring inside the object. Thank you, Mariangela

159114
S
Luminary
4 years ago
G
Gabriele.RodeghieroMonochrome
posted in Got a question?
Convert to Non sequential

Dear Zemax support Team, I'm trying to convert my SEQ design to a NSQ mode, but by doing this I loose my coordinate reference frame. I placed a sphere to highlight the position of the coordinate reference frame in NSQ. The reference frame I need is assigned to surface 16 in the SEQ design. I would be glad if you can help me understanding what is wrong in my approach. I send you the SEQ and the converted NSQ files. Thanks for your help. Best regard Gabriele  

1481
Kevin Scales
En-Lightened
4 years ago
T
Taynara.de OliveiraStudent
asked in Got a question?
GRIN FIBER LENS

Hello, If I want to simulate a GRIN fiber lens do I have to do in non-sequential mode? I want to use the GRIN fiber as lens so I just simulated the "core" of the fiber in sequential mode.  My GRIN fiber has a parabolic refractive index profile. The core is SILICA doped with GERMANIUM so it has specified refractive index profile. How can I simulate my refractive index profile (instead using the gradient 1, 2, 3...)? Many thanks. Yours, Taynara Oliveira

10445
Nicholas Herringer
Zemax Staff
4 years ago

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