Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Joseph L. Robichaud"'
Publikováno v:
Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems III.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fd4f55ab78409b448e4d0d2289919f1
https://doi.org/10.1117/12.2295963
https://doi.org/10.1117/12.2295963
Publikováno v:
SPIE Proceedings.
For space-based use, projected needs are for large optics of the one-meter class that lie under 30 kg/m 2 in mass areal density. Current space programs using glass optics, such as Kepler, exhibit a mass of 45 kg/m 2 , while JWST beryllium optics, inc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d8f01caed981b04acd9cb4c30eb8419
https://doi.org/10.1117/12.2022448
https://doi.org/10.1117/12.2022448
Autor:
Matthew Edward Lewis Jungwirth, Clinton G. Hobart, Robert N. Martin, Robert C. Romeo, Joseph L. Robichaud, Eustace L. Dereniak, Emeric Lavergne, Michael S. Baker, Jerome Ballesta, David V. Wick, Jared Joseph Milinazzo, Christopher C. Wilcox
Publikováno v:
SPIE Proceedings.
An active reflective component can change its focal length by physically deforming its reflecting surface. Such elements exist at small apertures, but have yet to be fully realized at larger apertures. This paper presents the design and initial resul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69701331ce4710301914a7ba81518bda
https://doi.org/10.1117/12.2020722
https://doi.org/10.1117/12.2020722
Autor:
Steve Mix, Deepak Sampath, Craig Peton, Jay Schwartz, Court Heller, Chris Wainer, Joseph L. Robichaud
Publikováno v:
SPIE Proceedings.
Silicon Carbide (SiC) optical materials are being applied widely for both space based and ground based optical telescopes. The material provides a superior weight to stiffness ratio, which is an important metric for the design and fabrication of ligh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::153a35ffd0fc75edcb19ff205a9c5a40
https://doi.org/10.1117/12.926831
https://doi.org/10.1117/12.926831
Publikováno v:
SPIE Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3377d7ab8bc15de64ce376aa776f91b3
https://doi.org/10.1117/12.846290
https://doi.org/10.1117/12.846290
Publikováno v:
SPIE Proceedings.
To reduce the finishing costs of silicon carbide mirror substrates, silicon claddings are applied allowing the surfaces to be more easily diamond turned and polished than the bare chemical vapor deposited (CVD) silicon carbide or bimodal reaction bon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ef8ebd405ebef1d3ccd393a7c561eb1
https://doi.org/10.1117/12.827032
https://doi.org/10.1117/12.827032
Publikováno v:
Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation.
L-3 Communications, SSG-Tinsley reports the optical performance demonstrated with an EUV quality aspheric mirror. The off axis ellipsoidal reflector demonstrates a surface figure of < 3 nm RMS and a surface finish which ranges from 3 - 7 Angstroms RM
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83c452760d4cddd2afb4349af42d6484
https://doi.org/10.1117/12.789731
https://doi.org/10.1117/12.789731
Publikováno v:
SPIE Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b673ca78b4aa813b375e07eaec323cad
https://doi.org/10.1117/12.774154
https://doi.org/10.1117/12.774154
Autor:
Brian Rider, David Landry, Jay Schwartz, Joseph L. Robichaud, Michael Chung, William E. Glenn
Publikováno v:
Optical Materials and Structures Technologies II.
SSG Precision Optronics, Inc. (SSG) has recently developed a number of Reaction Bonded (RB) Silicon Carbide (SiC) optical systems for space-based remote sensing and astronomical observing applications. RB SiC's superior material properties make it un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::267ebd3d520644e0a846ceb3347622da
https://doi.org/10.1117/12.617406
https://doi.org/10.1117/12.617406
Autor:
Arne Henden, Brian C. Hicks, Frederick H. Harris, Bob L. Lucke, Douglas W. Toomey, Jacqueline Fischer, Peter M. Onaka, Frederick J. Vrba, Shu-i Wang, Joseph L. Robichaud, C. C. Dudley, Werner E. Stahlberger, Kris E. Kosakowski, Kenneth J. Johnston
Publikováno v:
SPIE Proceedings.
In order to extend the US Naval Observatory (USNO) small-angle astrometric capabilities to near infrared wavelengths we have designed and manufactured a 1024 x 1024 InSb re-imaging infrared camera equipped with an array selected from the InSb ALADDIN
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67e91c9b1d1784c1a942641848ec31e8
https://doi.org/10.1117/12.461033
https://doi.org/10.1117/12.461033