OP - Best Form Lenses - Week 11 Flashcards
1
Q
Which form of aberration do we care about most for spectacles?
A
Astigmatism
2
Q
What happens when there is no aberration but there is petzval
A
As you reduce aberration, the sagittal and tangential curves get closer the the petzval surface.
When aberration becomes zero - They collapse in on each other and become one with the petzval surface
