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AsukuMonochrome

asked in Got a question?

ZPL/ INPUT numeric value to string

How does one convert the numeric value obtained from user INPUT to STRING data type?Thanks

2 hours ago

AsukuMonochrome

asked in Got a question?

ZPL: How to loop over a user defined array variables and store results in csv

I would like to loop over array variables and compute analysis results and store in a CSV file.Example: I would like to loop over 4 field points and compute MTF and store the results in a CSV file. Where, Column 1 = Frequency, Column 2 = Field 1 results, Column 3 = Field 2 results and so on. How can I append results for the different fields points as defined in the ARRAY?ARRAY= [1, 2, 3, 4]FOREACH VARIABLE IN ARRAY FOR i = 0, 180, 10 ! Define variables freq = i wave = 1 field = VARIABLE sampling = 1 vector = 1 type = 1 GETMTF freq, wave, field, sampling, vector, type FORMAT 10.7 OUTPUT log_filename$, append ! PRINT i, “,”, “vec1(0), “,”, vec1(1) # append results for the different fields as defined in the array OUTPUT screen NEXTThanks

3 hours ago

Giulia PanusaVisible

asked in Got a question?

Red box and exclamation mark popping up while inserting detectors objects

Hi!I am getting a very strange error while trying to insert detector rectangles while using Zemax in Non Sequential Mode. I am working with CAD objects, but as soon as I try to insert simple detectors, the raw gets highlighted with a strange red box:This can happen also with the other objects from time to time:Zemax stops working and I have to force quitting the software. When I reopen Zemax I get these two errors:Does anybody know why this happens?I thought it was because of the big cad files, so I tried to insert only simple detectors: Unfurtunately I get the same behavior and I have to quit Zemax.I thank you in advance for your help!CheersmGiulia.

4 hours ago

IanKInfrared

asked in Got a question?

2D source array with different tilt

Hi,Working with NSC, I want to create a 2D source array where the surface normal of each source intersects at the same location (or be able to be changed manually).There is the option to create an array in the properties of the NSC editor, however there is no option to rotate the source individually in the array.I have attached pictures of what I am hoping to achieve. Is there a way to generate this 2D array?Thank you for reading!

5 hours ago

YingMonochrome

asked in Got a question?

POP question: how to set up POP if waist X and Y are in different location as well as different size?

Hi,I did laser beam measurement and knew waist X and waist Y, and their corresponding locations W.R.T laser port, just want to discuss with you what is the best way to set it up in POP. what I did is to use Astigmatism Gaussian.Since the 1st surface is x-waist, the waist position X is 0.and waist position Y is 148 since Y waist is at 148 to the right of 1st surface - X waist.Does this sound reasonable to you? I am a new user with POP, any suggestions and advice are appreciated!Thanks! Regards,Ying

15 hours ago

AthulStudent

asked in Got a question?

collimated led

hallo,i had been working with regular LED´s as my source of illumination and was planning to change the source to be collimated, i tried looking into the merit functions but nothing came up. Can someone help me with this.

1 day ago

Lieu-Kim.DangInfrared

asked in Got a question?

Lens Substitute

Hi! Is there a way in OS to subsitute lenses from the catalogue in optimization process?Thanks.

1 day ago

marco.ievoliSingle Emitter

asked in Got a question?

Parameter for Merit Function in multi-configuration

Hello everyone, is it possible to set the parameters of the merit function in order to respect two configurations simultaneously?For example i want to obtain a lens position in order to respect two different configurations.Thanks Marco

1 day ago

Domingo.RubialesMonochrome

asked in Got a question?

Design a projection system with two or three lenses

Hello. I want information about how to create and optimizate a projection system with two or three lenses. Every time I try to use one model already done I can not find a good solution (I am a begginer), each parameter I modify the merit function is not computable or the result have a big RMS spot size. I would like to have a document which creates the lens from zero and explainning all the steps. Thanks

1 day ago

YingMonochrome

asked in Got a question?

szInfrared

asked in Got a question?

No raysplit at volume hologram inside Medium

In a NSC System I have placed a Hologram Surface inside a rectangular volume with an index of 1.5.n1, n2 and n are set to 1.5. XYZ Coordinates are set to incomming and outcomming beam is 30° to get a reflective grating.Sending a beam under matching angele so that it hits the hlogram surface at 30° leads to the expected reflected beam inside the medium.Switching Split Rays on gives a reflected and a transmitted zero Order beam as expected.All fine so far! Changing the XYZ Coordinates for the outcomming beam to a value beyond TIR (for example 50°) without splitting everything stays as expected the beam is deflected under 50° and than total reflected at the rectangular volume surface.Switching Split Rays now on gives a “geometry error”Using Hologram Lens with fitting material instead leads to the same problem. Is there a way to use ray splitting with Holograms using large angles inside refractive media? BestSteffen

6 days ago

AminRMonochrome

asked in Got a question?

What factors should be considered to compare two cameras?

Imagine that you are given two cameras and no information about them are given. However, you have all the technical tools in hand to compare their images and find whether their performances are the same or not. To simplify the problem, both cameras image a USAF-1951 chart. Question isWhat factors should be considered to verify two cameras are identical?I would say their Modulation Transfer Function across the object and for all wavelengths are enough for this comparison. Am I right?p.s. Let's assume that we only care about the image quality at the same imaging condition like same iso, same f#, etc. given that we have access to all these settings and cameras are not defective (sensor performance is ideal and not bad pixels). Thanks

6 days ago

Chris.SvecMonochrome

asked in ZOS-API

Simulink with ZOS-API

I have constructed successful interfaces with the ZOS-API using MATLAB, but there’s a larger system model that I’m now integrating into Simulink and I’m running into import errors because Simulink doesn’t seem to like the data structure. Has anyone tackled Simulink interfacing?

6 days ago

Andrew.DenningtonInfrared

asked in Got a question?

Universal Plot Unnecessary Recalculation

Please can someone at Zemax stop Universal Plots doing an unnecessary recalculation when you switch between the Graph tab and the Text tab. Universal Plots are used for carrying out multiple calculations and some of mine take a long time to generate. Zemax shouldn’t need to do a recalculation to show you the values it used to generate the graph when you select the Text tab, after all nothing has changed. It is just a waste of my time waiting 15 minutes or more just to access the data values.

10 days ago

YingMonochrome

asked in Got a question?

focal plane and principal plane in image space

Hi,I downloaded a simple lens (LA7270-E4, Thorlabs) zemax files, and I don’t understand the focal plane and principle plane locations in image space as shown in the prescription, I think they are opposite.Image attached. Please let me know your thoughts. Thanks,Ying

10 days ago

AthulStudent

asked in Got a question?

Rough reflecting surface with very low reflectivity.

Hallo,I am relatively new to zemax and i was trying to make a rough surface with very low reflectivity. How do i achieve this?

12 days ago

Heejoo.ChoiStudent

asked in Got a question?

The return of LocalOpt = TheSystem.Tools.OpenLocalOptimization(); is empty.

Never mind! It is resolved.

15 days ago

lumieremyoungStudent

asked in DLLs

How can I get my laser diode scattered?

Hi I’m senior in InHa university.I want to make a head light which uses laser diode.So I made this model, and I want my laser diode to be scattered. So I made a lens which functions as scatterer.But how can I GET THIS LENS TO FUNCTION AS A SCATTER-ER? Always- thank you for your support.

16 days ago

SuminStudent

asked in Got a question?

Simulating gaussian mode mismatching in POP

Dear experts, I’m designing a mode-matching telescope that uses only a concave and convex mirror. I have two questions about handling the gaussian beam in zemax. 1. The too large waist size and waist location deviationCurrently, I’m using skew-ray gaussian beam analysis and POP coupling to check the design. My design has ~3 degrees of incident angle to the mirror, so astigmatism of the gaussian beam occurs. But deviation of waist location is too large than expected in skew Gaussian beam analysis. in ray transfer matrix analysis, astigmatism of the curved surface is described like this. Image from wikipedia “Ray transfer matrix analysis”COS(3degree) is about 0.9986…~1 so I think the incident angle of my telescope will make small amounts of gaussian defocus. but zemax skew analysis shows ~40mm of waist position displacement. I can't tell if I made an error in optical theory or if I made a mistake in the initial setting of the simulation of the zemax program. Changes in Gaussian beams i

18 days ago

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