22 September 2011 A large aperture portable telescope
Author Affiliations +
Abstract
A dismountable and portable telescope with a large primary mirror (250 mm in diameter) and a numerical aperture of 5.6, is presented. The telescope has a all-spheric catadioptric optical design, consisting of a spherical primary and a group of spherical lenses, where the last surface is aluminized, as a secondary mirror. The group of lenses corrects all the optical aberrations, including the spherical introduced by the primary and the chromatic ones. The telescope has a very compact design, with a physical length of 600mm. This fact, joint with the all spherical design, make it a ligth portable and easy to align instrument: when dismounted it can be contained in a suitcase sizing 580x440x140 mm and the spherical surface for all the mirrors and lenses makes easy the final alignment of the optical train. We discuss here in detail the optical design and the realized prototype and will show the results, both in terms of theoretical and effective performances.&publicationDat
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rinaldo Sperotto, Sergio Poppi, Claudio Pernechele, "A large aperture portable telescope", Proc. SPIE 8167, Optical Design and Engineering IV, 81671T (22 September 2011); doi: 10.1117/12.896858; https://doi.org/10.1117/12.896858
PROCEEDINGS
10 PAGES


SHARE
RELATED CONTENT

Design Of Wide-Band Catadioptic Telescope
Proceedings of SPIE (June 13 1989)
Simultaneous design of an optical system and null tests of...
Proceedings of SPIE (September 07 2010)
Optical Design Of An Astrometric Space Telescope
Proceedings of SPIE (August 20 1986)
A wide-field telescope for MACHO searching at Dome C
Proceedings of SPIE (September 28 2004)

Back to Top