Hello,
We have different values between Footprint and PARR operand ( see below):
- on footprint : Max radius = 0,1241
- in Merit Function : PARR Surf 23 = 0.120
how can we get the value of the footprint in the Merit function?
Thanks for your help,
Solved
differents values between Footprint and PARR operand
Best answer by David.Nguyen
PARR stands for paraxial radial ray coordinate. PARR uses paraxial rays. In contrast, while its not specifically mentioned, I believe the Footprint diagram uses real rays. Could you try with REAR, real radial ray coordinate, instead of PARR and tell us whether it makes a difference?
Moreover, you might be interested in that thread as well, where I wrote a user-defined operand (UDOC) to read the actual min/max values from a Footprint Diagram:
The remark from
Take care,
David
+2
PARR stands for paraxial radial ray coordinate. PARR uses paraxial rays. In contrast, while its not specifically mentioned, I believe the Footprint diagram uses real rays. Could you try with REAR, real radial ray coordinate, instead of PARR and tell us whether it makes a difference?
Moreover, you might be interested in that thread as well, where I wrote a user-defined operand (UDOC) to read the actual min/max values from a Footprint Diagram:
The remark from
Take care,
David
thanks a lot David. I change and put REAR. Nows the value between lens data editor( column semi diameter), values in foot print and in Merit function are the same = 0,120.
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