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nadav.amitaiFully Spectral

asked in Got a question?

ztystarInfrared

asked in Got a question?

How to tilt & denceter a component without disturbing other components?

Hi all,I have a question regarding the tilt and decenter specific elements without changing other components in an optical system. For example, as the 1st picture shown below, we have many mirrors tilted certain degrees, now, I would like to tilt the M1 mirror only, but still make the rest mirrors stay at the same position (not tilt and dencenter at all), but definitely, their size may change due to the tilt of M1 mirror. However, when I tilt M1 mirror, the rest system also change as shown in the second picture, if anyone can help me out for this problem, I really appreciate!The corresponding Zemax file also attached below for your reference if you would like to modify it for me!Thank you!

11 days ago

ztystarInfrared

asked in Got a question?

How to model the FOV scanner system used for telescope?

Hi all,I have a very fundamental question about modelling FOV scanner used for telescope system. Below I attach a picture showing that the ray caustic from the Three Mirror Anastigmat (TMA) forming a very good image at the intermediate image plane. (I don’t show the plot of the TMA system). And we use M4, Flat Mirror (FM) and M5 to form a basic FOV scanner system to shrink the size of the sensor.For example, we can tip & tilt the flat mirror to make almost each filed point (on & off axis) hit at the center of sensor (the pink ray bundle in the picture) which means the green and red ray bundle almost concide with the pink ray bundle . I start with only on-axis field and optimize to achieve a diffraction-limited system. However, when I use multi-configuration function to add more off-axis fields, for example (0 , 0.02 deg), and try to tilt the flat mirror, the system works very bad for off-axis field, I am just curious if any one have some inputs or suggestions, that would be ver

12 days ago

viorelSingle Emitter

asked in Got a question?

How to disable sound in Non Sequential Ray Trace?

I would like to disable the alert sound at the end of a ray trace analysis. I did not find any option in preferences. I can mute the sound on the entire computer, but then I miss other alerts.Thanks

12 days ago

Sahil Nazir PottooStudent

asked in Got a question?

Can Henyey-Greenstein distribution be used to model bulk scattering due to raindrops and snowflakes?

Hi,Henyey-Greenstein model describes the angular distribution of light scattered by small particles, ranging from the scattering of light by biological tissue to scattering by interstellar dust clouds [https://support.zemax.com/hc/en-us/articles/1500005577062-Using-the-Henyey-Greenstein-distribution-to-model-bulk-scattering].Will it be right to use Henyey-Greenstein distribution in Non-Sequential Mode to model bulk scattering due to raindrops and snowflakes?Thank you for the reply! [Mod note: Moved to general forum as this is not a STAR-related question].

7 days ago

Sahil Nazir PottooStudent

asked in Got a question?

Can OpticStudio sequential mode be used to model long distance free-space Gaussian laser beam propagation?

Hello everyone,There are 3 tools in OpticStudio sequential mode to model Gaussian laser beam propagation, ray-based approach, Paraxial Gaussian Beam analysis, and Physical Optics Propagation. In the knowledgebase articles (https://www.zemax.com/blogs/free-tutorials/modeling-laser-beam-propagation-in-opticstudio), the beam has been analyzed through the optical system as it propagates to 100 mm. It also recommends to use Paraxial or Physical Optics Propagation tool when the propagation length is long and beam is collimated.Will it be right to use Paraxial or POP if the propagation length is some hundred meters between transmitter and detector (as is in the case of free space optics FSO links) or there any limit on distance?Thank you for the reply!

12 days ago

MarzannaInfrared

asked in Got a question?

Marginal Ray solve function

Hi,Following Zemax tutorial, I add Marginal Ray Solve for my paraxial lens? What does it mean in practice? Also, my spot diagram has changed.I am sorry if my questions sound very basic, but I a very new to Zemax. Could you also suggest some easy-to-understand materials that would helps in making a sense out of analysing graphs and diagrams produced by Zemax?

12 days ago

smaxStudent

asked in Got a question?

How to calculate the resolution of an optical system !

Hello there !I have an optical system and I need to know the resolution of the system. How can I do the same? And if I want the increase the resolution, how can I do this?

13 days ago

smaxStudent

asked in Got a question?

How to make a condenser system for LED as an input source in sequential mode !

I need to make a condenser system using LED in sequential mode of Zemax. How can I model this design?

13 days ago

atravinskySingle Emitter

asked in Got a question?

Spot centroid (CENX/CENY) vs Huygens PSF centroid (CEHX/CEHY) - why are they different?

Hello,I am getting about 100% difference when calculating the centroid using the two methods. Why are they so different? I was expecting ~10% difference. Should they not be identical for a paraxial lens?Thank you!Anton

10 days ago

AllieZemax Staff

published in User News & Alerts

March 2023 Community NewsletterNewsletter

WelcomeWelcome to the March edition of the Zemax’s Community newsletter! This newsletter provides updates for you, the user, on technical content you might find interesting or helpful. This newsletter features content that has been posted or was popular during the last month! Check out what we have for you below:Welcome The Community in Review Featured Community Posts Ask An Engineer: PanDao Export Demo Code Exchange Latest Editions Chinese Forum: Popular Topics Japanese Forum: Popular Topics Ansys Optics Application Gallery Zemax-er Spotlight: Oliver FähnleIs this newsletter missing something you think others should know about? Or is there something you learned here that you didn’t know before? Let us know in the comments below! The Community in ReviewFeatured Community PostsA shorter month might mean less activity for most communities, but not for ours. Our fantastic users were still out here helping their peers. We’ve collected some of the most-liked posts from February to shar

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13 days ago

smaxStudent

asked in Got a question?

How to know the linear and angular magnification of an optical system?

Suppose I’ve designed an optical system in zemax, how can I find the linear and angular magnification of the system.

13 days ago

elavillaSingle Emitter

asked in Got a question?

How to Evaluate Zernike Values with Multiple-Configs in Tolerancing

Hello, I’d like to know how to output a set of Zernike values when running Tolerancing when I have two separate configurations?Setup: There are two wavefronts being evaluated in each configuration. Tolerancing is setup to run a User Tolerance Script. The TSC loads a merit function with criterion for both configurations. There is a setting under Tolerancing→ Criterion that allows for the configuration to be set to “All”, “1/2” and “2/2”. The TSC computes the standard Zernike terms within and reports them to an output TXT file.Issue: Running in any CFG mode produces the nominal system output and only one evaluation of the MIN/MAX tolerance. If running in “All” mode, the Zernike values for CFG 1 are reported, same as running in “1/2” mode. Running in “2/2” modes, the Zernike values expected for CFG 2 are reported. Question: Is there a trigger for the TSC or a setting such that Zernike values for both configs are output during a single tolerancing run? Given the TSC is called at each itera

21 hours ago

JamesSingle Emitter

asked in Got a question?

Zoom Layouts

How do i get ZEMAX to show all 3 zoom layouts on a one page plot, without drawing them on top of each other ?

14 days ago

Khaled.HassanSingle Emitter

asked in Got a question?

Using Max Cores in Simulation

the software is taking the max cores available only in the first run and after that it takes nearly 30% of the max cores.What should I do? Thanks

21 hours ago

DavidRMonochrome

asked in Got a question?

Export non sequential mode file into CAD with solid beam pattern

Hello everyone,I was wondering if there is some way to convert a non sequential mode zemax file into a CAD fileusing the solid beam ray pattern instead of a XY fan ray pattern (by default before non sequential mode conversion).This way, rays would not be lines anymore, but solids, and would be way easier to use in Solidworks.Thank you!Best regards,David.

21 hours ago

David.NguyenLuminary

posted in Got a question?

Objective lens implementation from patent

Hi everyone, Our lab is using a Zeiss 20X water immersion lens (Item no.: 421452-9800-000) in a custom light-sheet microscope, and I was trying to perform some simulations of the point spread function (PSF).I searched for the patent of this lens, and potentially found something relevant at the German patent office (Application No. 10 2005 051 025.6). In this patent, Table 3 describes a 20X water-immersion objective lens with a 1.0 NA and 2.149 mm working distance. I’m copying this table here for your reference:Surface number Radius Thickness Nd Vd 0 Water immersion 1 -9.039 4.80 1.519 64.0 2 -19.248 4.61 1.597 35.0 3 -9.576 0.40 4 -101.598 5.00 1.440 94.6 5 -14.227 0.10 6 64.011 5.50 1.440 94.6 7 -21.754 0.50 8 58.715 7.00 1.530 76.6 9 -15.181 1.50 1.641 42.2 10 14.227 6.80 1.440 94.6 11 -53.084 0.10 12 14.539 7.10 1.440 94.6 13 -68.788 1.77

15 hours ago

MarzannaInfrared

asked in Got a question?

Why my paraxial lens stopped focusing after adding scan mirror?

Hi,I am using paraxial lens as an objective to focus scanned light beam. Before I added mirror to the system, the paraxial lens was focusing, but after mirror was added, the light was defocused. I thought “quick focus” may help, but instead I got negative focus. What I am doing wrong? Regards,Marzanna

13 days ago

o.sonmezMonochrome

asked in Got a question?

Reading corner coordinates of a 3D object.

Hello Everyone,Does anybody have an idea about how to read out the coordinate values of 3D object corners? In either merit function or ZPL environment is welcomed.

17 days ago

o.sonmezMonochrome

asked in Got a question?

sagittal and tangential MTF values are far different

Hi everyone,Do you have an idea on why the sagittal and tangential MTF values are far by this much as shown below?Some details about the System: Off-axis mirror set, curved mirrors involved.Red arrow: sagittalYellow arrow: tangentialLooking forward

17 days ago

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