My systeme have 3 lens
I want to understand how can i resolve the errors TIR (Total Internal Refelexion) between surfaces of lenses
Wich parameter can i change ?
is these a equation between the lenses to avoid TIR
Thank you
+2Hi Wahiba,
Can you share your design file with us, so we can have a look at it?
You can find the definition of TIR, which stands for Total Internal Reflection, in Wikipedia.
The most obvious relation is with the curvature of the lens. Having high incidence angles, and going from a high to low refractive index medium tends to cause TIR, but its difficult to say without seeing your file.
What happens if you change the Radius to INF (for infinity)? If you have paraxial rays, this should remove the TIR errors.
Let me know if this helps, and take care,
David
Hi David,
yes i tried to make radius to INF. exemple if i make surface 7 INF. the TIR appear at surface 2 or 6
Thank you for your answer
Wahiba
Reply
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.
Need more help?
To Chinese users:
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）。