Safety sun glasses with high intensity light protection

Details Safety sun glasses with high intensity light protection Safety sun glasses with high intensity light protection

2007-04-24

2011-12-20

Wong, Tina (Department: 2874)

Liquid crystal cells, elements and systems

Liquid crystal system

Liquid crystal eyewear

C349S013000, C349S058000, C002S008100, C002S008200

Reexamination Certificate

active

08081262

ABSTRACT:
A pair of safety sunglass, particularly for use when arc welding, includes auto darkening lenses having suitable characteristics for providing high intensity light protection during welding procedures. The sunglasses have a tight fitting frame conforming to an individual's face curvature. When an arc is struck, or another high intensity light source is present, the lenses instantly and automatically darken to protect the individual's eyes from damage. Each lens includes a plurality of layers for prohibiting the high intensity direct light rays from passing therethrough. A feature and benefit of such eyewear is that welding operations may be performed in confined spaces where a conventional welding face shield can not fit. When the welding is completed, the eyeglasses would quickly return to their sun tinted state allowing them to be used as a conventional pair of sunglasses.

REFERENCES:
patent: 4868930 (1989-09-01), Blackstone
patent: 5276539 (1994-01-01), Humphrey
patent: 5343258 (1994-08-01), Lachman et al.
patent: 5671035 (1997-09-01), Barnes
patent: D394732 (1998-05-01), Huh
patent: 5790230 (1998-08-01), Sved
patent: D401608 (1998-11-01), Eberle et al.
patent: 5959705 (1999-09-01), Fergason
patent: D431328 (2000-09-01), Tanner
patent: 6185739 (2001-02-01), Verkic et al.
patent: 6401244 (2002-06-01), Kramer et al.
patent: 7008055 (2006-03-01), McLear et al.
patent: 7753518 (2010-07-01), Lam et al.

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