Aspherizing with MRF

  • MRF can generate high removal rates
  • ~30 microns / min !
  • > 0.5 mm3/min VRR
  • No need to grind and prepolish asphere
  • No special equipment is needed
  • No Mid-spatial frequency (MSF) residuals often generated by this equipment
  • Starting from best-fit sphere is "easy" & "cheap"

 

Results:

  • D11 & large wheel provides ability to create large diameter precision asphere without aspheric grinding and pre-polishing equipment
  • Residual error shown is after one aspherization run, and the part is now ready for figure correction if higher precision is required

 

mrfApp1 fig3