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Titolo:
OFF-AXIS SYSTEMS FOR 4-M CLASS TELESCOPES
Autore:
MORETTO G; KUHN JR;
Indirizzi:
NATL OPT ASTRON OBSERV,SO OBSERV ASTROPHYS RES PROJECT TELESCOPE,950 N CHERRY AVE TUCSON AZ 85721 UNIV ARIZONA,STEWARD OBSERV TUCSON AZ 85721 MICHIGAN STATE UNIV,DEPT PHYS & ASTRON E LANSING MI 48824 NATL SOLAR OBSERV SUNSPOT NM 88349
Titolo Testata:
Applied optics
fascicolo: 16, volume: 37, anno: 1998,
pagine: 3539 - 3546
SICI:
0003-6935(1998)37:16<3539:OSF4CT>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
6
Recensione:
Indirizzi per estratti:
Citazione:
G. Moretto e J.R. Kuhn, "OFF-AXIS SYSTEMS FOR 4-M CLASS TELESCOPES", Applied optics, 37(16), 1998, pp. 3539-3546

Abstract

We describe here an off-axis design for a 4.0-m astronomical telescope. We show that the geometric optical performance of this configuration can equal that of an on-axis conventional configuration while the diffractive performance fundamentally surpasses conventional telescopes because of the absence of pupil obstruction. The specific optical design described here uses a single off-axis primary mirror to obtain three distinct final focus ports: an f/10 port (with corrector) for wide-field imaging and spectroscopy with a field of view (FOV) of 15 arc min; a small-field, 2-reflection f/10 port suitable for polarimetry and coronagraphy; and a slower, f/16 (3-reflection) port with a 7 arc min FOV. For general astronomical observations requiring high optical throughput and low scattered light, this design is superior to conventionalRitchey-Chretien optical configurations. (C) 1998 Optical Society of America.

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Documento generato il 08/07/20 alle ore 00:25:24