Optical system having a radial difference in refractive index

Details Optical system having a radial difference in refractive index Optical system having a radial difference in refractive index

1978-12-12

1980-08-05

Sacher, Paul A.

G02B 300

Patent

active

042159148

ABSTRACT:
An optical system in which at least one of the elements is made from so-called gradient glass having a radial difference in refractive index. The element having this radial difference may be either a lens with at least one curved surface, or a plane-parallel plate. The radial variation in refractive index varies in accordance with a formula which is given.

REFERENCES:
patent: 1943521 (1934-01-01), Ewald
patent: 2547416 (1951-04-01), Skellett

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