Physics – Optics
Scientific paper
Jul 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pasp...98..701o&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 98, July 1986, p. 701-705. Research supported by the Un
Physics
Optics
1
Calibrating, Illumination, Light Sources, Mirrors, Telescopes, Fiber Optics, Focal Plane Devices, Focusing, Optical Equipment, Optical Filters, Spheres
Scientific paper
A recently implemented method of illuminating instruments attached to the Multiple Mirror Telescope (MMT) with light from comparison and calibration sources in a way which mimics the pupil of the MMT is described. The principal innovation is that the light is fed by 30-m lengths of fused-silica fibers to an integrating sphere from lamps located in a laboratory roughly 6 m from the telescope structure. This system has resulted in improved flexibility and serviceability over that previously used in which the lamps were located near the focal plane of the telescope. In addition, implementation of this scheme has removed a source of heat from the telescope chamber.
Blanco Daniel R.
Chaffee Frederic H. Jr.
Foltz Craig B.
Ouellette David B.
Sharp Frank H.
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