Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Gregory J. Feher"'
Autor:
Gregory J. Feher, Jean-Noel Aubrun, Paul J. Reshatoff, Donald F. Zacharie, Ernesto O. Perez, Kenneth R. Lorell
Publikováno v:
SPIE Proceedings.
The Keck 2 ten meter telescope will utilize an advanced chopping secondary mirror in order to enhance observations in the infrared. The Infrared Fast Steering Mirror (IFSM) can execute a square-wave chop at frequencies as high as 25 Hz with an accura
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33aca2bdff5063265b39538c36dc0144
https://doi.org/10.1117/12.319278
https://doi.org/10.1117/12.319278
Autor:
Paul J. Reshatoff, Donald F. Zacharie, Kenneth R. Lorell, Jean-Noel Aubrun, Gregory J. Feher, Ernesto O. Perez
Publikováno v:
Adaptive Optics in Astronomy.
In mid 1992 an actively controlled infrared (IR) reflecting secondary mirror was installed on the W.M. Keck Ten Meter Telescope, currently the world's largest telescope. This 0.5 m gold plated beryllium mirror is capable of extremely precise motions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cb94abd692511367d984aed9e8fa81e
https://doi.org/10.1117/12.176117
https://doi.org/10.1117/12.176117
Autor:
Jean-Noel Aubrun, Ernesto O. Perez, Paul J. Reshatoff, Gregory J. Feher, Donald F. Zacharie, Kenneth R. Lorell
Publikováno v:
SPIE Proceedings.
The paper describes the electromechanical design of the drive system for the actively controlled chopping secondary mirror of the W.M. Keck Ten Meter Telescope, which performs two-axis spatial chopping. Also described are the reaction cancellation sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::160d20bd05676595849ace4d237b840c
https://doi.org/10.1117/12.140884
https://doi.org/10.1117/12.140884
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