Zoom lens with a variable refractive index element

Details Zoom lens with a variable refractive index element Zoom lens with a variable refractive index element

1985-12-24

1989-04-11

Corbin, John K.

350429, G02B 711, G02B 1514, G02B 964

Patent

active

048200280

ABSTRACT:
A zoom lens having a plurality of lens units at least one of which includes a variable refractive index element for zooming and focusing purpose. The refractive index of the variable refractive index element of the zoom lens is varied by an output from an auto-focus detection device.

REFERENCES:
patent: 4407567 (1983-10-01), Michelet et al.
patent: 4444471 (1984-04-01), Ford, Jr. et al.
patent: 4571032 (1986-02-01), Someya et al.
patent: 4697891 (1987-10-01), Kawai
McMahon; "Liquid Optics . . . A New Horizon"; The Surveyor; vol. 3, No. 4, 11/1967, pp. 26-28.

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