Reflecting objective system

Details Reflecting objective system Reflecting objective system

1992-08-31

1993-10-12

Henry, Jon W.

Optical: systems and elements

Mirror

Plural mirrors or reflecting surfaces

359869, G02B 1706, G02B 510

Patent

active

052531171

ABSTRACT:
A reflecting objective system comprising three or more spherical reflecting mirrors arranged symmetrically with regard to an optical axis common thereto and has spherical aberration corrected very favorably. By using a single or plural aspherical surfaces, this reflecting objective system can be modified so as to comprise two or more reflecting mirrors and correct not only the spherical aberration but also the offaxial aberrations.

REFERENCES:
patent: 2306679 (1942-12-01), Warmisham
patent: 3527526 (1970-09-01), Silvertooth
patent: 3584937 (1971-06-01), Nishimoto
patent: 4624538 (1986-11-01), MacFarlane
patent: 4733955 (1988-03-01), Cook
patent: 4964706 (1990-10-01), Cook
patent: 4993818 (1991-02-01), Cook
V. A. Panov et al, "Microobjectives with Two Ellipsoidal Reflecting Surfaces", Soviet Journal of Optical Technology, vol. 37, No. 11, Nov. 1970, pp. 721-725.
D. R. Shafer, "Laser beam expander . . . ", SPIE, vol. 190, LASL Optics Conf. (1979) pp. 15-20.
J. H. Oberheuser, "Optical system . . . ", SPIE, Proc. Soc. Photo-Opt. Instrum. Eng. (USA) vol. 193 (1979, pp. 27-33.
A. K. Head, "The Two-Mirror Aplanat", Proc. of the Physical Soc. (London), vol. 70 No. 545B (Oct. 1957), pp. 945-949.

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