1982-01-25
1984-04-24
Punter, William H.
350445, G02B 1706, G02B 2306
Patent
active
044444745
ABSTRACT:
A telescope is provided having a cylindrical main housing, one end of which is closed, and the opposite end having a viewing lens system moveable along the axis of the main housing. A cylindrical turret is mounted above the main housing in communication therewith and adapted to revolve 360.degree. about its cylindrical axis which perpendicularly intersects the axis of the main housing. A pedestal mount having position-controlling and stabilizing means is associated with the main housing.
A light-receiving aperture is located in the sidewall of the turret. Light which enters the aperture is downwardly reflected by a first flat mirror of elliptical periphery to impingement upon a second flat mirror of elliptical periphery containing a centered aperture of elliptical shape. Light leaving the second flat mirror strikes a concave mirror adjacent the closed end of the main housing, and is reflected in focused form through the elliptical aperture in the second flat mirror and then to the viewing lens system.
REFERENCES:
patent: 471708 (1892-03-01), Rudall
patent: 2504384 (1950-04-01), Bouwers
patent: 3881749 (1974-05-01), Abel
patent: 3951511 (1976-04-01), Parsons
patent: 4101195 (1978-07-01), Korsch
Berry, R. "Newtonian Telescopes", Telescope Making, vol. 9, Fall 1980, pp. 6-13.
Punter William H.
Rainer Norman B.
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