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
Best answer by Berta.Bernad
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
+2Hi 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
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