Optical design of a Cassegrain mounted AO relay for Imaka

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DOIResolve DOI: http://doi.org/10.1117/12.925859
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TypeArticle
Proceedings titleSPIE - International Society for Optical Engineering. Proceedings
ConferenceAdaptive Optics Systems III, 1 July 2012 through 6 July 2012, Amsterdam
ISSN0277-786X
ISBN9780819491480
Volume8447
Article number84473U
SubjectAstronomical instrumentation; Atmospheric dispersion; Deformable mirrors; Double pass; Encircled energy; Field of views; Ground-layer adaptive optics; Image performance; Imaging performance; Takeshi ADC; Adaptive optics; Atmospheric movements; Optical telescopes; Telescopes; Optical design
AbstractThe Imaka project is a ground layer adaptive optics system proposed for the Canada-France-Hawaii Telescope. This paper presents the optical design of a Cassegrain mounted ground layer adaptive optics system with a 0.8 degree field of view for Imaka. The design incorporates a Takeshi concentric ADC and a f/8 to f/5.7 reducer. This is followed with a novel double pass system to image the pupil on a 300mm mildly concave deformable mirror and re-image the system on the detector. The design meets the required 0.15" 80% encircled energy image performance, including correction for atmospheric dispersion. The optical design is presented with the predicted imaging performance. © 2012 SPIE.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Herzberg Institute of Astrophysics (HIA-IHA)
Peer reviewedYes
NPARC number21269430
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Record identifiere6ba56aa-3a28-4ddb-a913-47528bf51694
Record created2013-12-12
Record modified2017-04-24
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