Alignment estimation performances of merit function regression with differential wavefront sampling in multiple design configuration optimization

Eunsong Oh, Sug Whan Kim, Seongick Cho, Joo Hyung Ryuc

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

2 Citations (Scopus)

Abstract

In our earlier study[12], we suggested a new alignment algorithm called Multiple Design Configuration Optimization (MDCO hereafter) method combining the merit function regression (MFR) computation with the differential wavefront sampling method (DWS). In this study, we report alignment state estimation performances of the method for three target optical systems (i.e. i) a two-mirror Cassegrain telescope of 58mm in diameter for deep space earth observation, ii) a three-mirror anastigmat of 210mm in aperture for ocean monitoring from the geostationary orbit, and iii) on-axis/off-axis pairs of a extremely large telescope of 27.4m in aperture). First we introduced known amounts of alignment state disturbances to the target optical system elements. Example alignment parameter ranges may include, but not limited to, from 800microns to 10mm in decenter, and from 0.1 to 1.0 degree in tilt. We then ran alignment state estimation simulation using MDCO, MFR and DWS. The simulation results show that MDCO yields much better estimation performance than MFR and DWS over the alignment disturbance level of up to 150 times larger than the required tolerances. In particular, with its simple single field measurement, MDCO exhibits greater practicality and application potentials for shop floor optical testing environment than MFR and DWS.

Original languageEnglish
Title of host publicationOptical System Alignment, Tolerancing, and Verification V
DOIs
Publication statusPublished - 2011
EventOptical System Alignment, Tolerancing, and Verification V - San Diego, CA, United States
Duration: 2011 Aug 212011 Aug 22

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8131
ISSN (Print)0277-786X

Other

OtherOptical System Alignment, Tolerancing, and Verification V
CountryUnited States
CitySan Diego, CA
Period11/8/2111/8/22

All Science Journal Classification (ASJC) codes

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

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    Oh, E., Kim, S. W., Cho, S., & Ryuc, J. H. (2011). Alignment estimation performances of merit function regression with differential wavefront sampling in multiple design configuration optimization. In Optical System Alignment, Tolerancing, and Verification V [81310P] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8131). https://doi.org/10.1117/12.894947