Zoom lens barrel for waterproof and/or water-resistant camera

Details Zoom lens barrel for waterproof and/or water-resistant camera Zoom lens barrel for waterproof and/or water-resistant camera

1992-06-30

1993-09-07

Ben, Loha

Optical: systems and elements

Lens

With variable magnification

359826, G02B 1514

Patent

active

052434672

ABSTRACT:
A zoom lens barrel having a movable lens barrel which is movable in an optical axis direction, and an opening in which the movable lens barrel is movable in the optical axis direction. The zoom lens barrel further includes a moving frame to which the movable lens barrel is secured to move in the optical axis direction together with the movable lens barrel, and an intermediary member which is positioned between the movable lens barrel and the moving frame. The movable lens barrel is secured to the moving frame through the intermediary member.

REFERENCES:
patent: 4090780 (1978-05-01), Davis
patent: 4099847 (1978-07-01), Ito
patent: 4315670 (1982-02-01), Shigoku
patent: 4397528 (1983-08-01), Kamata
patent: 4458990 (1984-07-01), Kawai
patent: 4577934 (1986-03-01), Aoyagi et al.
patent: 4636042 (1987-01-01), Komine et al.
patent: 4690514 (1987-09-01), Kamata et al.
patent: 4974949 (1990-12-01), Tanaka
patent: 5066965 (1991-11-01), Tanaka et al.
English Language Abstracts of Japanese Patents 1-251019 and 60-130707.

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