Lens barrel with integrally formed zoom operation tube and cam t

Details Lens barrel with integrally formed zoom operation tube and cam t Lens barrel with integrally formed zoom operation tube and cam t

1991-07-22

1993-07-06

Porta, David P.

Optical: systems and elements

Lens

With support

359699, 359701, 359819, 359813, G02B 1500

Patent

active

052259390

ABSTRACT:
A lens barrel comprises a lens for zooming and a moving mechanism for moving the lens in the direction of an optical axis. The moving mechanism includes a zoom operation tube for performing a zooming operation and a cam tube disposed inside the zoom operation tube and having a cam part. The zoom operation tube and the cam tube are integrally formed.

REFERENCES:
patent: 4636042 (1987-01-01), Komine et al.
patent: 4950060 (1990-08-01), Nagasaka
patent: 4993815 (1991-02-01), Yamazaki et al.
patent: 5035493 (1991-07-01), Tanaka

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