Zobrazeno 1 - 5
of 5
pro vyhledávání: '"F. B. Ray"'
Publikováno v:
SPIE Proceedings.
The techniques of modal control analysis derived by Creedon and Lindgren [1], an error analysis method proposed by Howell and Creedon [2], and various methods of finite element analysis are applied to a meniscus mirror of unusually large aspect ratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7fd65c352449194324badfbb73b4d1f
https://doi.org/10.1117/12.937981
https://doi.org/10.1117/12.937981
Publikováno v:
Instrumentation for Astronomy with Large Optical Telescopes ISBN: 9789400977891
As presently conceived, the large telescope now being planned at The University of Texas will have a Ritchey-Chretien configuration, f/13.5, with a 7.6m diameter f/2 primary of ultra-thin construction, on an alt-azimuth mount.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0178a87545880ae4fc4f0e9b80230b2e
https://doi.org/10.1007/978-94-009-7787-7_5
https://doi.org/10.1007/978-94-009-7787-7_5
Autor:
F. B. Ray, J. H. Chang
Publikováno v:
SPIE Proceedings.
The usual procedure in finite element structural analysis is to produce a printed or graphical report of strain and/or stress for an object. In the situation where one must derive control information for the correction of static (or very low bandwidt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03547f1615e1757c73976169c79e2cff
https://doi.org/10.1117/12.963564
https://doi.org/10.1117/12.963564
Autor:
J. H. Chang, F. B. Ray
Publikováno v:
SPIE Proceedings.
Large telescope primary mirrors cast in borosilicate glass hold an exciting potential for future astronomy. The Steward Observatory mirror laposaJpory has resurrected the casting technology and is heading the research effort for this type of primary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9af9f1e17b464c87c370d43d7e69fe64
https://doi.org/10.1117/12.963575
https://doi.org/10.1117/12.963575
Autor:
F. B. Ray, S. V. Krishnamachari
Publikováno v:
Optical Engineering. 27
McDonald Observatory has joined in the effort to produce a workable design for a spectroscopic survey telescope utilizing a segmented spherical primary mirror, elaborating on ideas initiated by astronomers at the Pennsylvania State University. The sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abfba89d9aadc6043ae0cae812d77861
https://doi.org/10.1117/12.7976759
https://doi.org/10.1117/12.7976759