Consistent modelling for magnetic flux in rotationally symmetric systems

1999 ◽  
Vol 427 (1-2) ◽  
pp. 412-416 ◽  
Author(s):  
C.J. Edgcombe
Keyword(s):  
Magnetic Flux ◽  
Rotationally Symmetric ◽  
Symmetric Systems

Ray selection for optimization of rotationally symmetric systems

2016 ◽  
Vol 5 (3) ◽  
Author(s):  
Greg W. Forbes ◽  
Johannes Ruoff ◽  
Andreas Flesch ◽  
Norbert Kerwien
Keyword(s):  
Performance Assessment ◽  
Reduction Factor ◽  
Wavefront Aberration ◽  
Lens System ◽  
Sampling Schemes ◽  
Efficient Performance ◽  
Rotationally Symmetric ◽  
Selection For ◽  
Additional Reduction ◽  
Symmetric Systems

AbstractEfficient performance assessment is essential during the design of systems involving complex aspheres. We present new classes of pupil sampling schemes that, with a reduced number of rays, yield accurate estimates of the RMS wavefront aberration over a circular pupil. It turns out that the number of samples in the pupil can be reduced by a factor of about 0.7, and these ideas can also be expected to lead to a similar additional reduction factor when averaging over the field and color. Beyond that, analysis of a patented lens system is used to establish the path to further significant reductions.

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