Lens for an optical recording/reproducing apparatus and optical

Details Lens for an optical recording/reproducing apparatus and optical Lens for an optical recording/reproducing apparatus and optical

1985-11-22

1987-05-26

Corbin, John K.

G02B 1318

Patent

active

046680551

ABSTRACT:
In a lens for an optical recording/reproducing apparatus of the invention, a refractive index n(r) at a position of a distance r from an optical axis along a radial direction is given by:

REFERENCES:
patent: 934579 (1909-09-01), Straubel et al.
patent: 4613212 (1986-09-01), Norikazu

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