1975-09-19
1977-06-07
Corbin, John K.
350 18, 350166, G02B 2300
Patent
active
040279430
ABSTRACT:
A solar prominence adapter comprises a tubular housing having a first end adapted for connection with the eyepiece holder of a conventional reflecting or refracting telescope and the other end for connection with a conventional eyepiece. The housing includes an occulting disc positioned in a first plane for eclipsing or occulting an image of the sun present in that plane. A focusing system is provided for focusing the occulted image onto a second focal plane in which the image may be viewed by means of the conventional eyepiece. Supported in the housing is a prism for attenuating the solar radiation which is directed into the housing by the telescope when the adapter and telescope are connected. The housing may further include a filter for filtering out all but a narrow bandwidth of solar radiation and an adjustable diaphragm for varying the intensity of the observed image.
REFERENCES:
patent: 2379153 (1945-06-01), Holste
patent: 2834246 (1958-05-01), Foskett et al.
patent: 3278752 (1966-10-01), Brixner
patent: 3351408 (1967-11-01), Krewalk
patent: 3776642 (1973-12-01), Anson et al.
Miczaika et al., Tools of the Astronomer, Harvard U. Press, Cambridge, pp. 233-257, 1961.
King, The History of the Telescope, Chas. Griffin & Co. Ltd., London, pp. 378-386, 1955.
Pendray, Men, Mirrors and Stars, Harper & Bros., New York, pp. 192, 193, 298b-298d, 1946.
Corbin John K.
Koren Matthew W.
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