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I would like to know how the relative illumination graph is drawn in Zemax.

  • 7 December 2022
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I would like to know how the relative illumination graph is drawn in Zemax.
If you can answer the following two questions during the process of drawing the RI graph, the rest of the process will be deducible.

1. What spec of Light Source does zemax use?
In general, renderer's light has various specs such as Infinity Area Light and Point Light.

2. Can you tell me how to get the energy of the final potons that reached the Image Plane of zmax?
For example, is it calculated as I (x,y,λ) at the bottom right on page 2 of the paper below?
https://web.stanford.edu/~jefarrel/Publications/2010s/2012AppliedOptics.pdf
 

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Best answer by Ethan 18 January 2023, 21:28

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Hi @kivahan75,

Apologies for the delayed answers to your questions:

  1. OpticStudio assumes that the object scene is plane, uniform, and Lambertian
  2. There is a very detailed FAQ that describes many details about the theory and how Relative Illumination is calculated in OpticStudio. You can find it here: FAQ about Relative Illumination | Zemax Community.

Best,
Ethan 

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