Hi David

I did a quick search as I am not familiar with this subject and I found this paper https://arxiv.org/pdf/2103.02273.pdf that describes a technique to update the Zemax model.


'the author introduced a thin prism before the Zemax model to better describe the air refraction with a “gradient 5' surface. The prism apex angle is scaled as a function of the observed zenithal angle Z (see Equation 14).'

Are you using a similar technique? Would you have any other articles to share as a reference?

I can then enter a feature request. An alternative is also to have a look at DLL user-defined surfaces.

Sandrine

Hi Sandrine,

I have seen this paper, yes.

But... I do know several groups both in the UK and the US who would much appreciate the standard Zemax atmospheric surface corrected from the Hohenkerk and Sinclair data to more up to date data. I know the Spano paper describes how to make the correction, but it would be good if this was built in to Zemax

Hi David

I'll make a request to the product team. 

Sandrine

Hi - seems like deja vue! I am in the same position now as I was three years ago regarding atmospheric dispersion and the Zemax atmospheric model.

Can you tell me what the current status of the atmospheric model built into Zemax? Is it still based on the old Hohenkirk and Sinclair data?

Regards,

David