Reflecting telescope including a flat apertured mirror rotatable

Details Reflecting telescope including a flat apertured mirror rotatable Reflecting telescope including a flat apertured mirror rotatable

1991-07-15

1992-07-21

Henry, Jon W.

Optical: systems and elements

Compound lens system

With curved reflective imaging element

359874, G02B 2306, G02B 1706, G02B 7198

Patent

active

051328364

ABSTRACT:
A reflecting telescope optical system comprising an elongated rigid base member having front and aft ends, an optical eyepiece fixed to the base member at its aft end, an objective mirror mounted on the front end of the base member and facing the eyepiece, the optical center of said mirror being in alignment with the optical center line of the eyepiece, an optically flat mirror carried by the said base member positioned intermediate the eyepiece and the objective mirror, generally facing the objective mirror but angularly positioned with respect to the plane thereof, and having a central aperture whose axis is in alignment with the said optical center line.

REFERENCES:
patent: 2478762 (1949-08-01), Johnson
patent: 3971620 (1976-07-01), Everett
patent: 4101195 (1978-07-01), Korsch
patent: 4278320 (1981-07-01), Carreira
patent: 4444474 (1984-04-01), Pasko
patent: 4490026 (1984-12-01), Weber
patent: 4576452 (1986-03-01), Abel et al.
patent: 4927252 (1990-05-01), Burr

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