Patent
1988-01-11
1989-11-21
Arnold, Bruce Y.
350442, 350481, G02B 1708
Patent
active
048818011
ABSTRACT:
This invention relates to Catadioptric Telescopes having concave spherical mirror reflectors as the primary objective and a refractive correction element for reducing the spherical aberration of the primary mirror, and more particularly to a fast, aberration-free flat field telescope employing a spherical primary mirror and unique sub-aperture sized corrector made preferably of one plano-concave lens element and one plano-convex element both of the same kind of glass. This unique corrector also simultaneously corrects aberrations of the primary including its field curvature. The telescope requires no aspherics and is capable of easy adaptation to a Newtonian style configuration.
REFERENCES:
patent: 2350112 (1942-03-01), Houghton
patent: 2608129 (1952-08-01), Taylor
patent: 2685820 (1954-08-01), Kaprelian
patent: 3022708 (1962-02-01), Baker
patent: 3110752 (1963-11-01), Becker
patent: 3180217 (1965-04-01), Argyle et al.
patent: 3489487 (1970-01-01), Casas
patent: 3515461 (1970-06-01), Casas et al.
patent: 3598468 (1971-08-01), Perry
patent: 4061420 (1977-12-01), Kaprelian et al.
patent: 4278330 (1981-07-01), Buchroeder
Willstrop, R. V., "A Simple Coma Corrector for Off--Axis Guiding," Mon. Not. R. Astr. Soc., vol. 191, 1980, pp. 777-783.
Schmidt, "A Rapid Coma-Free Mirror System", Amatuer Telescope Making, pp. 373-375 (1953, 1961).
Maksutov, "New Catadioptric Meniscus Systems", Journal of Optical Society of America, vol. 34, No. 5, 1944 (pp. 270-284).
Jones, "A Wide Field Telescope with Spherical Optics", Sky & Telescope, Sep. 1957, pp. 548-550.
Heumann, "A 10-Inch Spherical Reflector with Negative Correcting Lens", Sky & Telescope, Oct. 1962, pp. 231-235.
Brixner, "Barlow Lens Designs for a Spherical Primary Mirror", Sky & Telescope, Aug. 1966, pp. 103-104.
Field, "Maksutovs with Sub-Aperture Correctors", Sky and Telescope, Aug. 1981, pp. 166-168.
Shafer, "New Designs for Large Telescopes", Optics News, Feb. 1986, pp. 22-23.
Sigler, "All--Spherical Catadioptric Telescope with Small Corrector Lenses", Applied Optics, vol. 21, #15, Aug. 1982, pp. 2804-2808.
Buchroeder, R. A., "A New Catadioptric Telescope Design Suitable for ATM's", Sky & Telescope, Apr. 1968, pp. 249-254.
Dilworth, D. C., "A New Catadioptric Telescope--I", Sky & Telescope, Nov. 1977, pp. 425-432.
Arnold Bruce Y.
Lerner Martin
Smith Joseph H.
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