Geometry Selection in Three-Mirror Freeform Imagers with an Accessible Exit Pupil Article Swipe
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.3390/s24154816
Reimaging telescopes have an accessible exit pupil that facilitates stray light mitigation and matching to auxiliary optical systems. Freeform surfaces present the opportunity for unobscured reflective systems to be folded into geometries that are otherwise impracticable with conventional surface types. It is critical, however, to understand the limitations of the enabled folding geometries and choose the one that best balances the optical performance and mechanical requirements. Here, we used the aberration theory of freeform surfaces to determine the aberration correction potential for using freeform surfaces in reimaging three-mirror telescopes and established a hierarchy for the different folding geometries without using optimization. We found that when using freeform optics, the ideal folding geometry had 9× better wavefront performance compared to the next best geometry. Within that ideal geometry, the system using freeform optics had 39% better wavefront performance compared to a system using off-axis asphere surfaces, thus quantifying one of the advantages of freeform optics in this design space.
Related Topics
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/s24154816
- OA Status
- gold
- Cited By
- 1
- References
- 34
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4400985314
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4400985314Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.3390/s24154816Digital Object Identifier
- Title
-
Geometry Selection in Three-Mirror Freeform Imagers with an Accessible Exit PupilWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
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2024Year of publication
- Publication date
-
2024-07-24Full publication date if available
- Authors
-
Aaron Bauer, Eric M. Schiesser, Jannick P. RollandList of authors in order
- Landing page
-
https://doi.org/10.3390/s24154816Publisher landing page
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
-
https://doi.org/10.3390/s24154816Direct OA link when available
- Concepts
-
Optics, Wavefront, Curved mirror, Computer science, Folding (DSP implementation), Geometrical optics, Adaptive optics, Surface (topology), Physics, Geometry, Mathematics, Engineering, Mechanical engineeringTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
1Total citation count in OpenAlex
- Citations by year (recent)
-
2024: 1Per-year citation counts (last 5 years)
- References (count)
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34Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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| primary_location.raw_source_name | Sensors |
| primary_location.landing_page_url | https://doi.org/10.3390/s24154816 |
| publication_date | 2024-07-24 |
| publication_year | 2024 |
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