Liquid crystal cells – elements and systems – Liquid crystal system – Liquid crystal eyewear
Patent
1996-03-29
1999-09-28
Dang, Hung Xuan
Liquid crystal cells, elements and systems
Liquid crystal system
Liquid crystal eyewear
349142, 349149, 349 58, 2 8, G02F 1133
Patent
active
059597054
ABSTRACT:
A switch activating system for an automatically darkening lens system and an automatically darkening lens system including such a switch activating system, includes a cover plate through at least part of which a scene may be viewed, a support, a pair of switch electrodes, one switch electrode positioned in relatively fixed relation with said support, the other switch electrode being positioned for movement with respect to said one switch electrode selectively to make electrical connection therewith in response to deflecting of said cover plate. The automatically darkening lens assembly also includes a controllable light shutter for controlling transmission of light for viewing therethrough, and a circuit for operating said light shutter and affecting operating characteristics thereof. A method for operating an auto-darkening welding lens including an operating circuit includes selecting an operational characteristic of the welding lens by setting a characteristic of the circuit, said setting comprising deflecting a mechanical member of the welding lens to operate a switch.
REFERENCES:
patent: Re29684 (1978-06-01), Gordon
patent: Re32521 (1987-10-01), Fergason
patent: D349588 (1994-08-01), Howard et al.
patent: D353692 (1994-12-01), Fergason et al.
patent: 3731986 (1973-05-01), Fergason
patent: 3881809 (1975-05-01), Fergason et al.
patent: 4039254 (1977-08-01), Harsch
patent: 4385806 (1983-05-01), Fergason
patent: 4436376 (1984-03-01), Fergason
patent: 4540243 (1985-09-01), Fergason
patent: 4582396 (1986-04-01), Bos et al.
patent: 4882769 (1989-11-01), Gallimore
patent: 5074647 (1991-12-01), Fergason et al.
patent: 5208688 (1993-05-01), Fergason et al.
patent: 5248880 (1993-09-01), Fergason
patent: 5252817 (1993-10-01), Fergason et al.
patent: 5347383 (1994-09-01), Fergason
patent: 5377032 (1994-12-01), Fergason et al.
patent: 5671035 (1997-09-01), Barnes
Dang Hung Xuan
Duong Tai V.
OSD Envizion, Inc.
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