Tolerancing and alignment of a three-mirror off-axis telescope

Anna Britt Mahler, Russell A Chipman

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

3 Citations (Scopus)

Abstract

When the optical elements of a system are not collinear, there are advantages to aligning all elements simultaneously. This paper presents the steps taken to prepare for system alignment and the alignment plan for such a system. A tolerance analysis of the system defines the compensators necessary for system alignment and allows an estimate of the expected magnitude of initial aberrations present in the system. Polarization and pupil aberrations are characterized in order to further understand expected system aberrations before alignment. A two step alignment plan is outlined. First, a CCD array placed at the focal plane indicates spot size and shape as elements are aligned. Once spot size is minimized, the CCD array is replaced by a ball bearing for retroreflection. Useful interferograms can be obtained with which remaining aberrations can be minimized. This technique is presented as the alignment plan for an off-axis telescope system consisting of one spherical and two ellipsoidal mirrors.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume6676
DOIs
StatePublished - 2007
EventOptical System Alignment and Tolerancing - San Diego, CA, United States
Duration: Aug 26 2007Aug 27 2007

Other

OtherOptical System Alignment and Tolerancing
CountryUnited States
CitySan Diego, CA
Period8/26/078/27/07

Fingerprint

Telescopes
Mirrors
alignment
telescopes
mirrors
Aberrations
aberration
Charge coupled devices
charge coupled devices
retroreflection
ball bearings
Ball bearings
compensators
pupils
Optical devices
interferometry
Polarization
polarization
estimates

Keywords

  • Alignment procedure
  • Ball bearing
  • CCD array
  • Off-axis telescope
  • Tolerancing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Mahler, A. B., & Chipman, R. A. (2007). Tolerancing and alignment of a three-mirror off-axis telescope. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6676). [66760I] https://doi.org/10.1117/12.734958

Tolerancing and alignment of a three-mirror off-axis telescope. / Mahler, Anna Britt; Chipman, Russell A.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6676 2007. 66760I.

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

Mahler, AB & Chipman, RA 2007, Tolerancing and alignment of a three-mirror off-axis telescope. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 6676, 66760I, Optical System Alignment and Tolerancing, San Diego, CA, United States, 8/26/07. https://doi.org/10.1117/12.734958
Mahler AB, Chipman RA. Tolerancing and alignment of a three-mirror off-axis telescope. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6676. 2007. 66760I https://doi.org/10.1117/12.734958
Mahler, Anna Britt ; Chipman, Russell A. / Tolerancing and alignment of a three-mirror off-axis telescope. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6676 2007.
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