Computer aided alignment using Zernike coefficients

Ho Soon Yang, Sung Hee Kim, Yun Woo Lee, Jae Bong Song, Hyug Gyo Rhee, Hoi Yoon Lee, Jae Hyeob Lee, In Won Lee, Sug Whan Kim

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

18 Citations (Scopus)

Abstract

The high performance optical system is generally not easy to align. Particularly, if there are off-axis optical components in the system, the alignment is a very serious problem. Many researchers have reported that using sensitivity of some Zemike coefficients is useful in alignment. However, this method has a weak point in that it generates an accurate result only when the misalignments of component are located within the range where the sensitivities of coefficients are linear to the amount of misalignment. We developed the new method which allows larger misalignment at the early stage of alignment. It is to minimize the merit function of Zernike coefficients rather than to use sensitivities of coefficients. In this paper, we analyzed the cons and pros of conventional alignment method and our own method and demonstrated the accuracy and flexibility of our method by aligning the diameter 900 mm Cassegrain type collimator. Even though there was more than 1 mm decenter error, we could align the secondary mirror to the nominal position with just two trials.

Original languageEnglish
Title of host publicationInterferometry XIII
Subtitle of host publicationApplications
DOIs
Publication statusPublished - 2006 Oct 18
EventInterferometry XIII: Applications - San Diego CA, United States
Duration: 2007 Aug 162007 Aug 17

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6293
ISSN (Print)0277-786X

Other

OtherInterferometry XIII: Applications
CountryUnited States
CitySan Diego CA
Period07/8/1607/8/17

Fingerprint

Alignment
alignment
misalignment
Misalignment
Coefficient
coefficients
sensitivity
collimators
Merit Function
Optical systems
flexibility
Mirrors
Optical System
Categorical or nominal
mirrors
Mirror
High Performance
Flexibility
Minimise
Range of data

All Science Journal Classification (ASJC) codes

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

Cite this

Yang, H. S., Kim, S. H., Lee, Y. W., Song, J. B., Rhee, H. G., Lee, H. Y., ... Kim, S. W. (2006). Computer aided alignment using Zernike coefficients. In Interferometry XIII: Applications [62930I] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6293). https://doi.org/10.1117/12.678647
Yang, Ho Soon ; Kim, Sung Hee ; Lee, Yun Woo ; Song, Jae Bong ; Rhee, Hyug Gyo ; Lee, Hoi Yoon ; Lee, Jae Hyeob ; Lee, In Won ; Kim, Sug Whan. / Computer aided alignment using Zernike coefficients. Interferometry XIII: Applications. 2006. (Proceedings of SPIE - The International Society for Optical Engineering).
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Yang, HS, Kim, SH, Lee, YW, Song, JB, Rhee, HG, Lee, HY, Lee, JH, Lee, IW & Kim, SW 2006, Computer aided alignment using Zernike coefficients. in Interferometry XIII: Applications., 62930I, Proceedings of SPIE - The International Society for Optical Engineering, vol. 6293, Interferometry XIII: Applications, San Diego CA, United States, 07/8/16. https://doi.org/10.1117/12.678647

Computer aided alignment using Zernike coefficients. / Yang, Ho Soon; Kim, Sung Hee; Lee, Yun Woo; Song, Jae Bong; Rhee, Hyug Gyo; Lee, Hoi Yoon; Lee, Jae Hyeob; Lee, In Won; Kim, Sug Whan.

Interferometry XIII: Applications. 2006. 62930I (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6293).

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

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Yang HS, Kim SH, Lee YW, Song JB, Rhee HG, Lee HY et al. Computer aided alignment using Zernike coefficients. In Interferometry XIII: Applications. 2006. 62930I. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.678647