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14 September 2023 Off-axis parabolic and ellipsoidal mirrors defined as freeform optics
Olivier Lardière, Denis Brousseau, Simon Thibault, Christian Marois
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Proceedings Volume 12798, International Optical Design Conference 2023; 1279834 (2023) https://doi.org/10.1117/12.2692565
Event: International Optical Design Conference 2023, 2023, Quebec City, QC, Canada
Abstract
Most optical shops are now equipped with 5-axes grinding and polishing machines for manufacturing freeform optics. It can be advantageous to define off-axis parabolic (OAP) and ellipsoidal (OAE) mirrors as freeforms to ease their design, specification and fabrication as stand-alone wedge-less mirrors. This paper describes an algorithm generating the surface sag and sphere departure point clouds from the conjugation distances and fold angle of the mirror.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Olivier Lardière, Denis Brousseau, Simon Thibault, and Christian Marois "Off-axis parabolic and ellipsoidal mirrors defined as freeform optics", Proc. SPIE 12798, International Optical Design Conference 2023, 1279834 (14 September 2023); https://doi.org/10.1117/12.2692565
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KEYWORDS
Parabolic mirrors
Freeform optics
Off axis mirrors
Mirror surfaces
Optics manufacturing
Point clouds
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