Hi @Girish.Pandey - additionally, we provide a few prism samples in the Zemax\Samples folder which is shipped with OpticStudio. By default, this folder is usually placed in your Documents folder. You can find prism examples in both Sequential and Non-Sequential Mode. Here is the sequential file “Prism using total internal reflection” from the folder ...\Zemax\Samples\Sequential\Tilted systems & prisms:

You should feel free to make any updates you need to these sample files! 

Hi David, I followed the link you provided when you answered Girish's question. But I found one of the two references at the end of the post missing or inaccessible, with being the title "Webinar: Comprehensive Optical System Design in OpticStudio "

When I clicked on the link to it, an alarming message popped up, saying " You are not authorized to access this page”

Did I do sth wrong or could anyone provide a valid link to it?

Cheers