Gradient index single lens

Details Gradient index single lens Gradient index single lens

1986-09-17

1988-01-26

Corbin, John K.

G02B 300

Patent

active

047213698

ABSTRACT:
A gradient index single lens has a first surface convex toward the object side, the first surface lying on the object side when the lens is used at a reduction magnification, a second surface concave toward the image side, the second surface lying on the image side when the lens is used at a reduction magnification, and an index distribution formed in the interior of the lens, the index distribution having a sphere symmetrical distribution about a certain point on the optic axis.

REFERENCES:
patent: 3486808 (1969-12-01), Hamblen
patent: 3626194 (1971-12-01), Hirano
patent: 4457590 (1984-07-01), Moore et al.
patent: 4647159 (1987-03-01), Baba

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