Results 211 to 220 of about 2,140 (245)

Fast and compact wide-field Gregorian telescope

SPIE Proceedings, 2012
A traditional Gregorian telescope features an intermediate focus, which makes the system longer than an equivalent fnumber Cassegrain design. One could shorten the Gregorian system by inserting a flat mirror before the secondary mirror. We explore the potential of this compact configuration for sky survey imaging with relaxed requirements for ...
Mehdi Bahrami, Alexander V. Goncharov
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Wide-field telescope using spherical mirrors

SPIE Proceedings, 2003
A new class of optical telescope is required to obtain high resolution spectra of many faint, distant galaxies. These dim objects require apertures approaching 30 meters in addition to many hours of integration per object, and simultaneous observation of as many galaxies as possible.
Jim H. Burge, J. Roger P. Angel
openaire   +1 more source

PILOT: a wide-field telescope for the Antarctic plateau

SPIE Proceedings, 2008
PILOT (the Pathfinder for an International Large Optical Telescope) is a proposed Australian/European optical/infrared telescope for Dome C on the Antarctic Plateau, with target first light in 2012. The telescope is 2.4m diameter, with overall focal ratio f/10, and a 1 degree field-of-view.
Will Saunders, Peter Gillingham, Andrew McGrath, Roger Haynes, Jurek Brzeski, John Storey, Jon Lawrence   +6 more
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OAJ: 2.6m wide field survey telescope

SPIE Proceedings, 2012
AMOS S.A. is in charge of the development of the telescopes for the "Observatorio Astrofisico de Javalambre" in Spain where a 2.6 m wide field telescope is complemented by an 80 cm telescope. This paper focuses on the 2.6 m telescope Javalambre Survey Telescope (JST): it is combining a large collecting surface with a wide field of view for reaching a
Olivier Pirnay, Vincent Moreau, Grégory Lousberg   +2 more
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A telescope illumination system for a wide-field endoscope

Optics & Laser Technology, 1991
Abstract Endoscopic illumination systems conduct light down a built-in fibre-optic bundle to illuminate the object. Many modern endoscopes employ wide-field imaging optical systems and therefore require an illuminating beam of large divergence. This is commonly provided by placing a strong diverging lens at the far end of the fibre bundle, but it ...
S.J. Dobson, A. Cox, P.J. Watson
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Wide-field telescope design for the KMTNet project

SPIE Proceedings, 2011
The Korea Astronomy and Space Science Institute (KASI) are under development three 1.6m optical telescopes for the Korea Micro-lensing Telescope Network (KMTNet) project. These will be installed at three southern observatories in Chile, South Africa, and Australia by middle 2014 to monitor dense star fields like the Galactic bulge and Large ...
Seung-Lee Kim, Byeong-Gon Park, Chung-Uk Lee, Larry Kappler, Nathan Kappler, Wade Poteet, Harold Cauthen, Dan Blanco, Richard Buchroeder, Jose Teran, Scott Freestone, Jong-Ung Lee, Myung Cho, In-Soo Yuk, Moo-Young Chun, Ho Jin, Sang-Mok Cha   +16 more
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A fast wide-field telescope: Mechanical design

Bulletin of the Crimean Astrophysical Observatory, 2014
A mechanical design of a fast wide-field telescope with an entrance pupil that is 180 mm diameter, a focal length of 294 mm, and an angular field of view of 10° is described. Original construction solutions have been found for this type of system.
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The Wide Field X-ray Telescope

2011
Proceedings of the "Wide Field X-ray Telescope" conference held in Bologna, Italy on 25-26 Nov 2009. The conference highlighted the scientific potential and discovery space provided by an X-ray mission concept characterized by a wide field-of-view (1 sq.deg.), large effective area (1 sq.mt.) and approximately constant PSF (~5 arcsec HEW) across the ...
Rosati P., Borgani S., Gilli R., PAOLILLO, MAURIZIO, Tozzi P.   +4 more
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Wide field performance of a phased array telescope

Optical Engineering, 1995
A phased array telescope is an array of optical telescopes whose images are coherently combined so as to achieve the resolution of a single but much larger telescope. Phased array telescopes deliver the resolution of very large telescopes without the difficulties and expenses associated with very large optics.
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The DDRAGO wide-field imager for the COLIBRÍ telescope

Ground-based and Airborne Instrumentation for Astronomy X
DDRAGO is the first light instrument for the 1.3-m COLIBRÍ robotic telescope at the Observatorio Astronómico Nacional, San Pedro Mártir, Baja California, México (OAN-SPM). COLIBRI was developed by France and Mexico in support of the Sino-French SVOM satellite with its ECLAIRs instrument, designed to provide initial follow-up of GRBs.
Langarica, Rosalía, Watson, Alan M, Álvarez Núñez, Luis Carlos, Ángeles, Fernando, Atteia, Jean-Luc, Basa, Stéphane, Cuevas, Salvador, Dolon, François, Farah, Alejandro, Dornic, Damien, Floriot, Johan, Fuentes-Fernández, Jorge, Langlois, Arthur, Lee, William H, Lombardo, Simona, Pereyra, Margarita, Ruíz-Díaz-Soto, Jaime, Ronayette, Samuel, Tinoco, Silvio, Valentín, Hervé   +19 more
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