dc.contributor.author | Chrisp, Michael P. | |
dc.contributor.author | Echter, Michael A. | |
dc.contributor.author | Primeau, Brian C. | |
dc.date.accessioned | 2016-11-04T21:19:31Z | |
dc.date.available | 2016-11-04T21:19:31Z | |
dc.date.issued | 2016-08 | |
dc.date.submitted | 2015-12 | |
dc.identifier.issn | 0091-3286 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/105221 | |
dc.description.abstract | The designs of two imaging freeform systems using nonuniform rational basis-spline (NURBS) optical surfaces are described. The first system, a 10 deg×9 degf/2 three-mirror anastigmat has four times higher spatial resolution over the image plane compared with the equivalent conventional rotational aspheric design, and 2.5 times higher resolution compared with a 10th-order XY polynomial freeform design. The mirrors for the NURBS freeform design have more than twice the asphericity than the conventional rotational and XY polynomial designs. In the second system, a Ritchey–Chretien telescope followed by a two-mirror NURBS freeform corrector is compared to a four-mirror Korsch telescope, for imaging to a visible-infrared imaging spectrometer. The freeform corrector design had 70% smaller spot sizes over the field and eliminated the large tertiary required in Korsch type design. Both of these NURBS freeform designs are possible due to a custom optical design code for fast accurate NURBS optimization, which now has parallel raytracing for thousands of NURBS grid points. | en_US |
dc.description.sponsorship | United States. Air Force (Contracts FA8721-05-C-0002 and FA8702-15-D-0001) | en_US |
dc.language.iso | en_US | |
dc.publisher | SPIE | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1117/1.OE.55.7.071208 | en_US |
dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
dc.source | SPIE | en_US |
dc.title | Imaging freeform optical systems designed with NURBS surfaces | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Chrisp, Michael P., Brian Primeau, and Michael A. Echter. “Imaging Freeform Optical Systems Designed with NURBS Surfaces.” Optical Engineering 55.7 (2016): 71208. | en_US |
dc.contributor.department | Lincoln Laboratory | en_US |
dc.contributor.mitauthor | Chrisp, Michael P. | |
dc.contributor.mitauthor | Echter, Michael A. | |
dc.contributor.mitauthor | Primeau, Brian C. | |
dc.relation.journal | Optical Engineering | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dspace.orderedauthors | Chrisp, Michael P.; Primeau, Brian; Echter, Michael A. | en_US |
dspace.embargo.terms | N | en_US |
mit.license | PUBLISHER_POLICY | en_US |