Zoom lens barrel assembly for a camera

Details Zoom lens barrel assembly for a camera Zoom lens barrel assembly for a camera

1998-09-30

2000-01-04

Epps, Georgia

Optical: systems and elements

Lens

With variable magnification

359700, 359822, 359823, G02B 1514, G02B 702

Patent

active

060116595

ABSTRACT:
A zoom lens assembly for a zoom lens having at least first and second lens groups arranged from a subject side in order comprises a rotatable first barrel, a rotatable second barrel disposed coaxially with the rotatable first barrel and having a cam for shifting the second lens group along the optical axis when it rotates, and an oscillatory gear mechanism for transmitting rotation of the rotatable first barrel to the rotatable second barrel as oscillatory rotation.

REFERENCES:
patent: 5617167 (1997-04-01), Kaji
patent: 5802404 (1998-09-01), Nishimura

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