Apochromatic lens triplets with aspherical lens elements

Details Apochromatic lens triplets with aspherical lens elements Apochromatic lens triplets with aspherical lens elements

1989-01-04

1990-04-10

Sugarman, Scott J.

350432, 350483, G02B 312, G02B 1318

Patent

active

049154834

ABSTRACT:
An apochromatic lens triplet comprises a liquid lens element contained between two glass lens elements. where the two glass lens elements are geometrically identical to each other but face in opposite directions along an optic axis. Inwardly facing surfaces of the two glass lens elements, which are in contact with the liquid lens element, are spherical. Outwardly facing surfaces of the two glass lens elements are aspherical to optimize performance.

REFERENCES:
patent: 4685774 (1987-08-01), Moskovich
patent: 4702569 (1987-10-01), Mercado et al.
patent: 4838665 (1989-06-01), Hasegawa et al.

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