Single lens having one spherical and one aspherical refractive s

Details Single lens having one spherical and one aspherical refractive s Single lens having one spherical and one aspherical refractive s

1981-10-02

1983-11-15

Corbin, John K.

G02B 1318

Patent

active

044152388

ABSTRACT:
A lens having a spherical surface and an aspherical surface curved relative to each other to minimize coma for a large diffraction-limited field and a large numerical aperture.

REFERENCES:
patent: 4027952 (1977-06-01), Hugues

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