Waterproof lens

Details Waterproof lens Waterproof lens

1992-07-02

1994-04-19

Henry, Jon W.

Optical: systems and elements

Protection from moisture or foreign particle

Sealing

359511, 359819, 359894, 354 64, G02B 702, G02B 2322, G03B 1708

Patent

active

053051459

ABSTRACT:
A waterproof lens including a lens frame located within a lens barrel. An inner peripheral flange is provided on the inner periphery of the lens barrel. The waterproof lens also has a tubular member which is detachably mounted to the inner peripheral flange for the purpose of intercepting light in a space between the lens barrel and the lens frame. An elastic waterproof ring is provided on the outer peripheral surface of the tubular member. The waterproof lens further includes a mechanism for sealing the transparent member and the inner peripheral flange in a water-tight manner.

REFERENCES:
patent: 3640424 (1972-02-01), Ando
patent: 3740114 (1973-06-01), Thompson
patent: 4994829 (1991-02-01), Tsukamoto et al.
patent: 5056903 (1991-10-01), Nakamura et al.
patent: 5066965 (1991-11-01), Tanaka et al.
patent: 5077567 (1991-12-01), Haraguchi et al.

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