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1. WO2022254351 - PROTECTIVE HELMET EQUIPPED WITH VISOR WITH LC LAYER AND THERMOFORMED LENS

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Publication Number WO/2022/254351
Publication Date 08.12.2022
International Application No. PCT/IB2022/055114
International Filing Date 01.06.2022
IPC
A42B 3/22 2006.1
AHUMAN NECESSITIES
42HEADWEAR
BHATS; HEAD COVERINGS
3Helmets; Helmet covers
04Parts, details or accessories of helmets
18Face protection devices
22Visors
G02F 1/137 2006.1
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices 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 modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
137characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
CPC
A42B 3/226
AHUMAN NECESSITIES
42HEADWEAR
BHATS; HEAD COVERINGS
3Helmets; Helmet covers ; ; Other protective head coverings;
04Parts, details or accessories of helmets
18Face protection devices
22Visors
226with sunscreens, e.g. tinted or dual visor
G02F 1/13725
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices 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 modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
137characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
13725based on guest-host interaction
Applicants
  • OUT OF S.R.L. [IT]/[IT]
Inventors
  • RIGHI, Federico
  • RIGHI, Roberto
Agents
  • GUALENI, Nadia
  • PULIERI, Gianluca Antonio
  • CHIMINI, Francesco
  • ZANARDELLI, Davide
  • GAMBA, Alessandro
  • DE LORENZO, Danilo
  • MITOLA, Marco
  • ZANETTIN, Gianluigi
  • BUSANA, Omar
  • CRIPPA, Paolo Ernesto
  • CARANGELO, Pierluigi
Priority Data
10202100001455204.06.2021IT
Publication Language English (en)
Filing Language Italian (IT)
Designated States
Title
(EN) PROTECTIVE HELMET EQUIPPED WITH VISOR WITH LC LAYER AND THERMOFORMED LENS
(FR) CASQUE DE PROTECTION ÉQUIPÉ D'UNE VISIÈRE À COUCHE LC ET LENTILLE THERMOFORMÉE
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Abstract
(EN) 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).
(FR) La présente invention concerne un casque de protection (1) pour pratiquer des activités sportives ou utiliser des véhicules motorisés comprenant un casque (2) pourvu d'une ouverture avant (23), dans la région des yeux de l'utilisateur, fermée par un ensemble visière (3). Ledit ensemble visière (3) comprend : au moins une lentille structurale au moins partiellement transparente (41), ladite lentille structurale (41) étant une feuille thermoformée de matériau polymère; un film LC à cristaux liquides de type hôte-invité (43) adapté pour modifier son propre niveau de transparence, disposé derrière la lentille structurale (41); au moins une source électrique pour alimenter le film LC (43).
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