Lens system

Details Lens system Lens system

1991-11-15

1993-08-10

Arnold, Bruce Y.

Optical: systems and elements

Lens

With graded refractive index

359654, G02B 300, G02B 900

Patent

active

052354644

ABSTRACT:
A lens system comprising a radial type graded refractive index lens element and a diffraction type lens element so that the refractive power of the radial type graded refractive index lens element is imparted to the diffraction type lens element, thereby facilitating manufacturing of the graded refractive index lens element and favorably correcting aberrations including chromatic aberration.

REFERENCES:
patent: 4843494 (1989-06-01), Cronin et al.
patent: 5044706 (1991-09-01), Chen
patent: 5117308 (1992-05-01), Tsuchida et al.
patent: 5151823 (1992-09-01), Chen
Hybrid diffractive-refractive lenses and achromats, Thomas Stone et al. pp. 2960-2971 Applied Optics / vol. 27, No. 14 / Jul. 15, 1988.
Design of gradient-undex lens systems for disc format cameras, J. Brian Caldwell et al. Sep. 15, 1986 / vol. 25, No. 18 / Applied Optics--pp. 3351-3355.
Design of a gradient-index photographic objective, Leland G. Atkinson et al., pp. 993-998 15 Mar. 1982 / vol. 21, No. 6 / Applied Optics.
"Infrared applications of diffractive optical elements", Swanson et al. SPIE Proceeding, vol. 885, paper #22, 1988.

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