Calibration and optimization of computer-controlled optical surfacing for large optics

Dae Wook Kim, Hubert M. Martin, James H Burge

Research output: Chapter in Book/Report/Conference proceedingConference contribution

20 Citations (Scopus)

Abstract

Precision optical surfaces can be efficiently manufactured using a computer-controlled optical surfacing (CCOS) process. Most CCOS processes are based on control of the dwell time of a tool on the workpiece, according to the desired removal and the tool influence function (TIF), which is the material wear function of the tool. Several major topics were investigated to improve current CCOS processes and provide new solutions for the next generation of CCOS processes. A rigid conformal (RC) lap using a visco-elastic non-Newtonian medium was invented. It conforms to the aspheric surface shape, yet maintains stiffness on short time scales to provide natural smoothing. The smoothing removes mid- to high-frequency errors while controlled dwell time removes low-frequency errors. A parametric smoothing model was also introduced to predict the smoothing effects. A parametric edge TIF model to represent measured edge TIFs was developed and demonstrated. This model covers the removal behavior as the tool overhangs the edge of the workpiece. These new tools and models were applied in a new process optimization technique called nonsequential optimization. The non-sequential approach performs a comprehensive optimization of dwell time using multiple TIFs (multiple tools) simultaneously. An overview of these newly implemented CCOS features** is presented along with some actual CCOS results.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume8126
DOIs
StatePublished - 2011
EventOptical Manufacturing and Testing IX - San Diego, CA, United States
Duration: Aug 22 2011Aug 24 2011

Other

OtherOptical Manufacturing and Testing IX
CountryUnited States
CitySan Diego, CA
Period8/22/118/24/11

Fingerprint

Hard facing
Optics
Calibration
optics
optimization
Optimization
smoothing
Dwell Time
dwell
Smoothing
Influence Function
Aspheric Surface
Smoothing Effect
Process Optimization
Model
Optimization Techniques
Low Frequency
stiffness
Stiffness
Time Scales

Keywords

  • Computer-controlled optical surfacing
  • Edge TIF
  • Non-sequential Optimization
  • Rigid conformal lap
  • Smoothing model

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Kim, D. W., Martin, H. M., & Burge, J. H. (2011). Calibration and optimization of computer-controlled optical surfacing for large optics. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8126). [812615] https://doi.org/10.1117/12.893878

Calibration and optimization of computer-controlled optical surfacing for large optics. / Kim, Dae Wook; Martin, Hubert M.; Burge, James H.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8126 2011. 812615.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kim, DW, Martin, HM & Burge, JH 2011, Calibration and optimization of computer-controlled optical surfacing for large optics. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 8126, 812615, Optical Manufacturing and Testing IX, San Diego, CA, United States, 8/22/11. https://doi.org/10.1117/12.893878
Kim DW, Martin HM, Burge JH. Calibration and optimization of computer-controlled optical surfacing for large optics. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8126. 2011. 812615 https://doi.org/10.1117/12.893878
Kim, Dae Wook ; Martin, Hubert M. ; Burge, James H. / Calibration and optimization of computer-controlled optical surfacing for large optics. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8126 2011.
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