Is there a way to read zar file of this element?

[khoroshyy]

HI.
I am trying to use this element from Thorlabs.
https://www.thorlabs.com/thorproduct.cfm?partnumber=TTL200
but its model comes in zar file.
Is there any way to read it?
Thanks.

[mjhoptics]

Hello @khoroshyy,
Please look into the python package zmxtools. I gather .zar is a zipped version of the zmx, etc. files. The tool takes a zar file as input and outputs a zmx file that ray-optics can (hopefully) read. I've used it in the past and seems to work.
Regards,
Mike Hayford

[khoroshyy]

Thanks. I am afraid we will be lost here. After communicating with the developer, zmxtools can unpack this type of zar. But it is a black-box lens, so it is my guess that Ray-Optics cannot work with it.
Best regards.
Petro,

[mjhoptics]

Ah, yes, no way around the encryption. Sometimes, zar files contain plain text data so the zmxtools package is good to have around.
Regards
Mike Hayford