J. Eur. Opt. Society-Rapid Publ. 21, 12( 2025) 135
( A)( B)
( C)
( D)
Figure 17. First approximation to determine the transfer point of the process chain after grinding:( A) areal WLI measurements( 5) of ground samples is( C) filtered using a Gaussian filter function describing the polishing effect.( B, D) PSD functions emphasize prominent peaks.
Table 1. Variation of grinding parameters for investigations of their influence on PJP results. Sample
CAM program tolerance( Fig. 11A)[ lm ]
Path distance PD [ mm ]
1 0.1 0.1 0.05
Sum of process time for all grinding steps [ min ]
# S1 X X 99 # S2 X X 99 # S3 X X 187
( A)
( B)
Figure 18. Comparison of figure error of FS freeform Alvarez lenses after grinding und every subsequent step of PJP:( A) PV and( B) RMS.