Hi all,
In the tolerance wizard the surface irregularity is given by no. of fringes.
Some vendors of lens give the surface irregularity in unit of RMS Angstrom.
Is there any conversion factor between these two units?
If not, is there any other way to overcome this disparnecy?
Thanks a lot,
Nadav
Hi Nadav,
you can use TEZI to tolerance on surface irregularity. With this operand the max tolerance value is the exact RMS error of the surface in lens units, so you can convert from Angstrom to the lens units defined in your sytem.
You can find an example of how to use this operand in this forum thread, as well as in this article.
I hope this helps! :)
Berta
Hi Berta,
Thanks for the answer the ref!
Best regards,
Nadav
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）。