Optrel Ag

Leo Keller

Franco Del Bon

Ramon Hofer-Kraner

Ramon Hofer Kraner

Phillip Syr&eacute;

A welder protection device comprising a shell and a transparent front cover for protection of a wearer of the welder protection device, and an auto-darkening optical filter. The welder protection device further comprises a retracting mechanism arranged to move the optical filter optical filter from an active position to a retracted position and vice versa. In the active position, the optical filter lies inside the welder protection device and in the wearer's field of view, and in the retracted position the optical filter lies inside the welder protection device and outside the wearer's field of view.

Protection device for a welder

An emergency flight safety device for flight crew members ( ) of an aircraft in an emergency situation. The device includes a full-face mask ( ) and a display ( ) that is integrated into the full face mask ( ). The display shows flight data and ensures that the crew ( ) has access to essential information even in the case when smoke otherwise largely blurs the view in the aircraft cabin. The emergency flight safety device also includes an oxygen and air supply apparatus ( ) for supplying oxygen and air to the interior of the mask ( ). The oxygen and air supply apparatus ( ) includes a purification device to purify polluted cabin air in order to prevent the crew members ( ) from being intoxicated by poisonous smoke.

Emergency flight safety device

An active electro-optical filtering device, such as a glare-protection device is disclosed. The device is equipped with a light-protection filter having at least one active optical filter element, an electronic device for controlling the active filter element, a light sensor working together with the electronic device, and an electrical current supply for the electronic device and the at least one active filter element. In order to improve the efficiency in production and employment, the light-protection filter is arranged in a filter component and the electronic device, the light sensor and the electric current supply are arranged in a physically separate control component, wherein the filter components can be releasably connected mechanically and electrically to form a total unit, and for this purpose, are equipped with mutually cooperating mechanical and electrical connecting elements. In order to provide the user in his work with a viewing sense which is physiologically least disruptive in all viewing directions through the filter element and to meet basic requirements in regard to safety, such as improved spatial vision and therefore an unhampered sense of balance and the detection of approaching objects, the light-protection filter is provided with at least one optically active or passive compensation element such as an optical phase delay foil or an electro-optical filter for improving homogeneity of the light transmission, which is a function of the viewing angle. In addition, the light-protection filter is equipped with a field of vision adapted to the natural visual perception.

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Rueti, Switzerland

Leo Keller