I want to understand how the OPDC built-in function in ZEMAX is calculated, and I hope to reproduce the OPDC calculation through ray tracing and programming or other methods.
The focus of the question is the specific operation method. I already know that opdc is the subtraction of the reference sphere and the backward tracking distance.
I would be very grateful if you could answer!
Sincerely，Nancy
Hey Nancy
Let us know if you need any further explanation. Here are the other posts where we have been discussing:
Sandrine
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.
Do not provide any information or data that is restricted by applicable law, including by the People’s Republic of China’s Cybersecurity and Data Security Laws ( e.g., Important Data, National Core Data, etc.).
不要提供任何受适用法律，包括中华人民共和国的网络安全和数据安全法限制的信息或数据（如重要数据、国家核心数据等）。