A protective helmet (1) for practicing sports or using motorized vehicle use according to the present invention has a visor (3) engaged with a cap (2) and comprises a structural lens (41) that is at least partially transparent, a liquid crystal layer (43), and a protective layer (44) laminated to the inner face (432) of the liquid crystal layer (43). Innovatively, a helmet thus made has technical features aimed at optimally protecting the GH liquid crystal layer from unwanted mechanical stresses that could compromise the uniformity of transparency thereof.
The protection device (1) for eyes according to the present invention comprises: an at least partially transparent structural lens (3) with at least one liquid crystal layer (8) with variable transparency applied; a photovoltaic cell (51) for activating the liquid crystal layer, frontally covered by an at least partially transparent element (3,31). Such device is characterized in that the at least partially transparent element (3,31) has a covering area (91) with mirroring treatment (9) in front of the photovoltaic cell (51), and the structural lens (3) has a vision area (90) devoid of mirroring treatment (9) and/or with mirroring treatment with a lower reflected light percentage than the covering area (91). This device is high in aesthetic impact due to the presence of mirroring treatment covering at least the photovoltaics, which is slightly or not at all visible to an outside observer.
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.
The ophthalmic device (1) in accordance with the present invention comprises at least one corrective lens (2) and at least one protective layer (3) that protects from ambient light. The corrective lens (2) has a surface with a non-zero Gaussian curvature and an opposite surface with a Gaussian curvature equal to zero. The protective layer (3) is coupled to the corrective lens (2) at the opposite surface with Gaussian curvature equal to zero. Advantageously, the ophthalmic device in accordance with the present invention is both corrective (of visual defects) and protective (from sunlight) and ensures optimal perceived illumination on the part of the user over a wide range of ambient luminosities.
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.
G02F 1/133 - Constructional arrangementsOperation of liquid crystal cellsCircuit arrangements
G02F 1/137 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
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.
G02F 1/133 - Constructional arrangementsOperation of liquid crystal cellsCircuit arrangements
G02F 1/137 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Lens; spectacles; protective visors; visors for helmets;
goggles; goggles for sports; sunglasses; lenses for
sunglasses; audio apparatus; audio interfaces; optical
devices, enhancers and correctors; information technology
and audio-visual, multimedia and photographic devices;
liquid crystal display screens; alarms and warning
equipment; protective and safety equipment; life-saving
apparatus and instruments; signalling apparatus and
instruments; highway emergency warning equipment; contact
lenses. Windscreens; windscreens for motor cars; vehicle
windscreens.
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.
G02F 1/137 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
09 - Scientific and electric apparatus and instruments
Goods & Services
Sporting articles, namely, camouflage screens, slingshots being sports articles, springboards, weight lifting belts, goalie face masks for field hockey, sports face mask for softball, baseball, lacrosse, protective padding for skateboarding, snowboarding and skiing, body protectors in the nature of protective padding for playing American football, rugby, ice hockey, lacrosse, motorcycle sports, auto racing, cycling and mountain biking, chest and abdomen protectors for sport use in the nature of protective padding for playing baseball/softball, equestrian sports, boxing, throat and neck protectors for sports use, hand and foot protectors for sports use in the nature of hand pads, hand guards, and foot pads, arm protectors for athletic use and leg protectors for athletic use in the nature of leg pads and leg guards, elbow and knee protectors for sports use in the nature of elbow and knee pads and elbow and knee guards Sunglasses; Headgear being protective helmets and helmet visors; goggles, namely protective goggles, safety goggles, sports goggles, swimming goggles, snow goggles, ski goggles, motorcycle goggles and goggles for mountain biking, diving goggles, scuba goggles, virtual reality goggles, night vision goggles, dust protective goggles, antifogging safety goggles; Corrective eye-wear, namely corrective glasses, prescription and corrective visors customized with a prescription lens to correct vision; sporting articles, namely, head protector in the nature of protective helmets
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.
G02F 1/137 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
The protective glasses (1) and/ or sunglasses in accordance with this invention are equipped with a frame (2) adapted to support a lens assembly (6) comprising a structural lens (8) made of plastics material and at least one LC film (9) with GH liquid crystals, arranged on an inner side of the structural lens (8) and controlled by an electronic board (5) powered by an energy source. The glasses (1) are characterized in that the structural lens (8) comprises a free edge (11) extending beyond the outline of the LC film (9) and at which the lens assembly (6) is fixed to the frame (2). In addition, there is a free space (111) between the frame (2) and the LC film (9). The frame (2) is provided with a vertically projecting rib (21) covering said free edge (11) and said free space (111). Advantageously, the rib (21) not only reduces deformations of the lens assembly, but also prevents infiltrations of light around the LC film that would compromise comfortable vision.
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.
G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
15.
PROTECTIVE HELMET EQUIPPED WITH VISOR WITH LC LAYER AND DEPOLARIZING LAYER
A protective helmet (1) for practicing sports activities or using motorized vehicles, according to the present invention comprises a cap (2) equipped with a front opening (23), at the user's eye region, closed by a visor assembly (3). Said visor assembly (3) comprises: • - at least one at least partially transparent structural lens (41); • - a Guest-Host type liquid crystal LC film (43) adapted to modify its own transparency level, arranged behind the structural lens (41); • - at least one electrical source for powering the LC film (43); • - at least one depolarizing layer (42) arranged between the structural lens (41) and the LC film (43).
G02F 1/137 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
16.
PROTECTIVE HELMET EQUIPPED WITH VISOR WITH LC LAYER AND THERMOFORMED LENS
A protective helmet (1) for practicing sports activities or using motorized vehicles according to the present invention comprises a cap (2) provided with a front opening (23), in the region of the user's eye, closed by a visor assembly (3). Said visor assembly (3) comprises: at least one at least partially transparent structural lens (41), said structural lens (41) being a thermoformed sheet of polymer material; a Guest-Host type liquid crystal LC film (43) adapted to modify its own transparency level, arranged behind the structural lens (41); at least one electrical source for powering the LC film (43).
G02F 1/137 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
17.
PROTECTIVE HELMET EQUIPPED WITH VISOR WITH FRAME AND LC LAYER
A protective helmet (1) for practicing sports activities or using motorized vehicles, according to the present invention comprises a cap (2) equipped with a front opening (23), at the user's eye region, closed by a visor assembly (3). Said visor assembly (3) comprises: at least one at least partially transparent structural lens (41); a Guest-Host type liquid crystal LC film (43) adapted to modify its own transparency level, arranged behind the structural lens (41); at least one electrical source for powering the LC film (43); a frame (31) suitable for supporting the structural lens (41) and anchoring it to the cap (2), wherein said frame (31) follows at least partially the perimeter of said structural lens (41).
G02F 1/137 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
An eye mask (1) for practicing winter sports comprises a lens assembly (4) comprising a frame (20), at least one structural lens (14), a Guest-Host-type liquid crystal LC film (16) adapted to modify the transparency level thereof and laminated to the structural lens (14), and a photovoltaic cell (26) for supplying the LC film (16). The structural lens (14) is applied to the frame (20), and the frame (20) has a higher stiffness than the structural lens (14).
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Lens; Spectacles; Protective visors; Visors for helmets; Goggles; Goggles for sports; Sunglasses; Lenses for sunglasses; Audio apparatus; Audio interfaces; Optical devices, enhancers and correctors; Information technology and audio-visual, multimedia and photographic devices; Liquid crystal display screens; Alarms and warning equipment; Protective and safety equipment; Life-saving apparatus and instruments; Signalling apparatus and instruments; Highway emergency warning equipment; Contact lenses. Windscreens; Windscreens for motor cars; Vehicle windscreens.
20.
PROTECTIVE EYE MASK FOR THE PRACTICE OF WINTER SPORTS
A protective eye mask (1) for the practice of winter sports, for example alpine skiing, is provided with at least one electrically powered LC lens (16) and comprises at least one LC layer (16') made of GH-type liquid crystals.
