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Persistent URL
http://purl.org/net/epubs/work/10788640
Record Status
Checked
Record Id
10788640
Title
Computer-guided alignment III: Description of inter-element alignment effect in circular-pupil optical systems
Contributors
H Lee (Oxford U., and Yonsei U.)
,
G Dalton (STFC Rutherford Appleton Lab., and Oxford U.)
,
I Tosh (STFC Rutherford Appleton Lab.)
,
S-W Kim (Yonsei U.)
Abstract
We present an analytic description of the inter-element alignment effect of misaligned optical systems with circular pupils. The description shows that decenter and tilt produce lateral displacement of the field and pupil coordinates, whilst a despace directly modifies the aberration coefficients by perturbing paraxial distances and scale factors of the two coordinates. This reveals that a misaligned surface not only changes its aberration characteristics, but also affects those of subsequent surfaces, which is the essence of the inter-element alignment effect. This description, combined with primary aberration theory, was applied to various misaligned systems to approximate their aberrations and alignment sensitivities given by ray-tracing. The results demonstrate the accuracy and robustness of this approach. We also discuss the potential usefulness of the description in estimating the axial separations between surfaces. © 2008 Optical Society of America.
Organisation
SSTD
,
STFC
,
SSTD-IS
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Language
English (EN)
Type
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Journal Article
Opt Express
16 (2008): 10992-11006.
doi:10.1364/OE.16.010992
2008
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