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How to setup/define the slit width?

  • October 1, 2020
  • 2 replies
  • 1063 views

Dear All,

I am interested in desiging an optical design for an instrument that will have a slit width of 20µm (with a 3mm length). Now, how can this be defined for the system?

Thank you very much.

Naif

Best answer by Berta.Bernad

Hi Naif,

You can directly apply a rectangular aperture defined by the half widths in x and y:

If working in Non-Sequential Mode, you can use a UDA file to create your user defined aperture, and then apply it on a surface. To have more details about the UDA file format, I recommend you have a look at the help files as such: The Setup Tab > Editors Group (Setup Tab) > Lens Data Editor > Surface Properties > Aperture (surface properties) > User Defined Apertures and Obscurations.

2 replies

Berta.Bernad
Zemax Staff
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  • Zemax Staff
  • Answer
  • October 1, 2020

Hi Naif,

You can directly apply a rectangular aperture defined by the half widths in x and y:

If working in Non-Sequential Mode, you can use a UDA file to create your user defined aperture, and then apply it on a surface. To have more details about the UDA file format, I recommend you have a look at the help files as such: The Setup Tab > Editors Group (Setup Tab) > Lens Data Editor > Surface Properties > Aperture (surface properties) > User Defined Apertures and Obscurations.


  • Author
  • Infrared
  • October 1, 2020

Thank you very much, Berta!

Cheers