Optical: systems and elements – Mirror – Including specified control or retention of the shape of a...
Patent
1995-03-24
1997-07-22
Dzierzynski, Paul M.
Optical: systems and elements
Mirror
Including specified control or retention of the shape of a...
359838, 359849, G02B 508
Patent
active
056508808
ABSTRACT:
A controllable optical mirror system incorporating a ferro-fluid having a surface which acquires an equilibrium shape in response to a gravitational field, rotational motion, and applied magnetic fields. The magnetic field has a predetermined spatial variation which produces an advantageous optical shape in the ferro-fluid surface.
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Borra, et al, "Optical Shop Tests of a f/2 1.5 Meter Diameter Liquid Mirror", Astrophysical Journal, vol. 418, Dec. 1993, pp. 943-946.
Shuter, et al., "A Wide Sky Coverage Ferrofluid Mercury Telescope", Astrophysical Journal, vol. 424, 1 Apr. 1994, pp. L139-L141.
Research Disclosure 31516, Anonymous, "Continuously Focusable Mirror", Kenneth Mason Pub. Ltd., Hampshire, England, #315, Jul. 1990.
R. W. Wood, "The Mercury Paraboloid as a Reflecting Telescope", The Astrophysical Journal, vol. 29, 1909, pp. 164-176.
E. F. Borra, "The Liquid-Mirror Telescope as a Viable Astronomical Tool", J. Roy. Astronomical Soc. Can., vol. 76, No. 4 1982, pp. 245-256.
Borra, et al., "A Diffraction-Limited f/2 1.5 Meter Diameter Liquid Mirror," Astrophysical Journal, vol. 346, 1 Nov. 89, pp. L41-L44.
Shuter, deceased William L. H.
Whitehead Lorne A.
Dzierzynski Paul M.
Jr. John Juba
The University of British Columbia
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