Abstract: Provided are protective glasses and/or sunglasses equipped with a frame adapted to support a lens assembly having at least one structural lens made of plastics material and at least one liquid crystal (LC) film of the guest host type arranged on an inner side of the at least one structural lens and controlled by an electronic board powered by an energy source. The at least one structural lens has a free edge extending beyond an outline of the at least one LC film at which the lens assembly is fixed to the frame. A free space is provided between the frame and the at least one LC film. The frame is provided with a vertically projecting rib covering the free edge and the free space. The rib not only reduces deformations of the lens assembly, but also prevents infiltrations of light around the LC film that would compromise comfortable vision.

Abstract: A protective helmet for practicing sports activities or using motorized vehicles is provided. The protective helmet has a cap provided with a front opening at an eye region of a user, and closed by a visor assembly. The visor assembly has at least one at least partially transparent structural lens, a guest-host type liquid crystal (LC) film adapted to modify its own transparency level, arranged behind the at least partially transparent structural lens, at least one electrical source for powering the LC film, and a frame for supporting the at least partially transparent structural lens and anchoring the at least partially transparent structural lens to the cap. The frame follows at least partially a perimeter of the at least partially transparent structural lens.

Abstract: A protective helmet for practicing sports activities or using motorized vehicles is provided. The protective helmet has a cap provided with a front opening in an eye region of a user and closed by a visor assembly. The visor assembly has at least one at least partially transparent structural lens, the at least partially transparent structural lens being a thermoformed sheet of polymer material, a guest-host type liquid crystal (LC) film adapted to modify its own transparency level, arranged behind the at least partially transparent structural lens, and at least one electrical source for powering the LC film.

Abstract: A protective eye mask for practicing winter sports and in particular alpine skiing is provided. The protective eye mask is provided with an electrically powered lyquid crystal (LC) lens having at least one LC layer made of guest-host (GH) type liquid crystals.

Abstract: A protective helmet for practicing sports activities or using motorized vehicles is provided. The protective helmet has a cap provided with a front opening at an eye region of a user, and closed by a visor assembly. The visor assembly has at least one at least partially transparent structural lens, a guest-host type liquid crystal (LC) film adapted to modify its own transparency level, arranged behind the at least partially transparent structural lens, at least one electrical source for powering the LC film, and at least one depolarizing layer arranged between the at least partially transparent structural lens and the LC film.

Abstract: An eye mask for practicing winter sports is provided. The eye mask has a lens assembly having a frame, a structural lens, a Guest-Host-type liquid crystal (LC) film adapted to modify a transparency level thereof and laminated to the structural lens, and a photovoltaic cell for supplying the LC film. The structural lens is applied to the frame. The frame has a higher stiffness than the structural lens.

Abstract: A protective eye mask for practicing winter sports and in particular alpine skiing is provided. The protective eye mask is provided with an electrically powered lyquid crystal (LC) lens having at least one LC layer made of guest-host (GH) type liquid crystals.