Compact varifocal lens assembly

Details Compact varifocal lens assembly Compact varifocal lens assembly

1972-12-18

1978-11-07

Corbin, John K.

350255, G02b 710

Patent

active

041242750

ABSTRACT:
A varifocal lens assembly of simplified construction which essentially comprises a lens mounting for focusing adjustment, a second lens mounting and a third lens mounting cooperative with the second lens mounting for adjustment of the focal length and for correction of optical aberrations resulting from the displacement of the second lens mounting and an operating barrel for operating the first and second lens mountings, either independently or simultaneously. The operating barrel effects, when rotated, the focusing operation and, when axially moved, the zooming operation.

REFERENCES:
patent: 3465662 (1969-09-01), Kashiwase
patent: 3765748 (1973-10-01), Mito

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