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WO2004019715A1 - Visiere de casque auto-teintee - Google Patents

Visiere de casque auto-teintee Download PDF

Info

Publication number
WO2004019715A1
WO2004019715A1 PCT/EP2003/005137 EP0305137W WO2004019715A1 WO 2004019715 A1 WO2004019715 A1 WO 2004019715A1 EP 0305137 W EP0305137 W EP 0305137W WO 2004019715 A1 WO2004019715 A1 WO 2004019715A1
Authority
WO
WIPO (PCT)
Prior art keywords
helmet visor
solar cell
helmet
visor
cell device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2003/005137
Other languages
German (de)
English (en)
Inventor
Jürgen BRUEGL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of WO2004019715A1 publication Critical patent/WO2004019715A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/18—Face protection devices
    • A42B3/22—Visors
    • A42B3/226—Visors with sunscreens, e.g. tinted or dual visor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/02—Goggles
    • A61F9/022—Use of special optical filters, e.g. multiple layers, filters for protection against laser light or light from nuclear explosions, screens with different filter properties on different parts of the screen; Rotating slit-discs

Definitions

  • the present invention relates to a self-tinting helmet visor according to the preamble of claim 1, a helmet with a self-tinting helmet visor according to claim 10 and glasses according to claim 11.
  • Helmets with tinted visors are known from different areas, e.g. from the motorcycle sector or from car racing. Also known from the military are jet pilot helmets, which also have tinted visors. Glasses with self-tinting lenses have been around for a long time, which "automatically" darken as the brightness increases. However, the tint of these lenses changes only relatively slowly over time.
  • the object of the invention is to provide a helmet visor or glasses, the tint of which adapts automatically and as quickly as possible to the respective brightness situation.
  • the basic principle of the invention consists in a self-tinting helmet visor with a tintable liquid crystal layer (Liquid Crastal) which is supplied with electricity by a solar cell device.
  • the solar cell device is arranged directly on the helmet visor.
  • the tinting can be increased by “energizing” the tintable layer.
  • the tinting of the electrically darkable layer is preferably continuous, ie continuously variable.
  • the helmet visor shows its maximum transparency, ie its slightest tint or no tint at all.
  • the tint can be increased by applying a voltage.
  • the power supply to the helmet visor fails, the tint automatically disappears, ensuring an undisturbed view of the helmet wearer.
  • the helmet visor consists of a transparent carrier body, on the surface of which an electrically darkened layer is applied.
  • the electrically darkened layer can also be integrated in the transparent carrier body and electrically connected to the solar cell device.
  • the helmet visor according to the invention is a completely "self-sufficient" functioning component. Electrical connections from the helmet visor to the helmet or other components are not required. In particular, no battery is required. The required current or the required voltage is supplied directly by the solar cells are arranged in or on the helmet visor, so conventional helmets can be easily retrofitted with such a visor.
  • the solar cell device delivers a more or less large electrical voltage.
  • the helmet visor tints more or less strongly.
  • the electrical voltage is largely proportional to the currently required visor tint.
  • the solar cell device and the self-tinting layer are coordinated with one another in such a way that the helmet wearer always has an essentially constant “transparency” of the helmet visor depending on the brightness conditions.
  • the tintable layer is formed by an electrically undockable flexible liquid crystal film. Such tinting films are available, for example, from AlphaMicron, Inc., 277 Martinel Dr., Kent, OH 44240-4376, USA.
  • tinting foils can be varied over a wide range by varying the voltage present.
  • a major advantage of such tinting films is their very short response time. Within a few milliseconds, the tint is adjusted according to the ambient brightness. With such a tint film, an approximately constant brightness can be ensured in the eye area of the visor wearer even when driving in an avenue with different lighting conditions.
  • the tint film can be applied directly to the transparent visor carrier body.
  • the electrically darkened flexible tinting film can also be inserted between two transparent carrier body layers, which better protects the tinting film against damage.
  • the tinting film is, for example, electrically connected to the solar cell device via conductor tracks, which is also provided directly on or in the helmet visor.
  • the solar cell device can also be formed by a flexible film.
  • Such films with solar cells are state of the art and are offered, for example, by Iowa Thin Film Technologies Inc., 2337 230th Street, Boone, Iowa, USA 50036-7538.
  • the "solar cell film” is preferably in the form of a strip.
  • the strip can be arranged transversely in the upper edge region of the visor, ie above the self-tinting film.
  • the solar cell strip can have a width of 10 mm, for example.
  • the solar cells are therefore preferably at the "edge" of the Field of vision of the helmet wearer on the visor arranged. They do not affect the field of vision of the visor wearer or only insignificantly.
  • glasses in particular sunglasses, window panes or windows of vehicles, sunroofs, etc. can be provided with a solar cell arrangement and an electrically tintable layer, the tint of which changes depending on the applied electrical voltage.
  • the invention is explained in more detail below using an exemplary embodiment in conjunction with the drawing.
  • the only figure shows a helmet visor 1 which can be fastened to a helmet via joints 2, 3.
  • the visor In the area of its lateral ends, the visor each has a guide groove 4, 5, via which the visor is guided on the helmet when opening or closing.
  • the helmet visor 1 has an electrically tintable layer, the outline of which is indicated here by a dashed line 7.
  • the electrically tintable layer can also extend over the entire area of the helmet visor 1. It can either be applied to the surface of the transparent main body of the visor or integrated into the main body of the visor.
  • the electrically tintable layer 7 is electrically connected to a solar cell arrangement 8, for example via conductor tracks (not shown).
  • the solar cell arrangement 8 can be formed by a solar cell film. It can be applied directly to the outside of the helmet visor 1.
  • the solar cell film 8 here has the shape of a strip. The strip extends transversely along the upper, front edge of the helmet visor over almost the entire width of the visor.
  • the solar cell film 8 generates an electrical voltage in accordance with the brightness of the surroundings. Depending on the level of the electrical voltage, the electrically tintable layer is darkened to a greater or lesser extent. In a very bright environment, for example in the sun, the solar cell film generates a high electrical voltage and the electrically tintable layer darkens accordingly. At lower brightness, the tension and thus the tint of the helmet visor is lower. If the solar cell film 8 or the connecting lines between the solar cell film 8 and the electrically tintable layer fail or malfunction, the tint loses its tint. When de-energized, it is thus ensured that the sight of the visor carrier is not impaired.

Landscapes

  • Helmets And Other Head Coverings (AREA)

Abstract

L'invention concerne une visière de casque (1) comprenant un dispositif (8) à cellule solaire directement monté sur ladite visière. Ladite visière de casque (1) peut être foncée ou teintée au moyen d'une tension électrique produite par ledit dispositif (8) à cellule solaire. Ladite visière à casque perd sa teinte produite par la tension électrique dans un état hors tension.
PCT/EP2003/005137 2002-08-26 2003-05-16 Visiere de casque auto-teintee Ceased WO2004019715A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/227,446 US20040034898A1 (en) 2002-08-26 2002-08-26 Self-tinting helmet visor and method of making same
US10/227,446 2002-08-26

Publications (1)

Publication Number Publication Date
WO2004019715A1 true WO2004019715A1 (fr) 2004-03-11

Family

ID=31887466

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/005137 Ceased WO2004019715A1 (fr) 2002-08-26 2003-05-16 Visiere de casque auto-teintee

Country Status (2)

Country Link
US (1) US20040034898A1 (fr)
WO (1) WO2004019715A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602006014538D1 (de) * 2005-03-01 2010-07-08 Masimo Laboratories Inc Nichtinvasiver multiparameter-patientenmonitor
US8265723B1 (en) 2006-10-12 2012-09-11 Cercacor Laboratories, Inc. Oximeter probe off indicator defining probe off space
US20080221418A1 (en) * 2007-03-09 2008-09-11 Masimo Corporation Noninvasive multi-parameter patient monitor
EP2476369B1 (fr) * 2007-03-27 2014-10-01 Masimo Laboratories, Inc. Capteur optique à longueurs d'onde multiples
US8374665B2 (en) 2007-04-21 2013-02-12 Cercacor Laboratories, Inc. Tissue profile wellness monitor
US9839381B1 (en) 2009-11-24 2017-12-12 Cercacor Laboratories, Inc. Physiological measurement system with automatic wavelength adjustment
WO2011069122A1 (fr) 2009-12-04 2011-06-09 Masimo Corporation Etalonnage pour moniteurs physiologiques à plusieurs étages
WO2019145391A1 (fr) 2018-01-25 2019-08-01 Nanogate Se Stratifié de film électriquement conducteur optiquement transparent photochromique
IT202100014507A1 (it) * 2021-06-04 2022-12-04 Out Of S R L Casco di protezione dotato di visiera con strato lc e strato depolarizzante

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4106019A1 (de) * 1990-03-02 1991-10-02 Neta Holland Lichtdurchlaessiges fenster und dessen elektro-optische steuerung
EP0498143A1 (fr) * 1991-02-08 1992-08-12 Alberto Agostini Dispositif anti-éblouissement actif pour conducteur de voiture automobile et autre véhicule
US5552841A (en) * 1993-10-06 1996-09-03 A B G S.R.L. Liquid crystal eyeglasses

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Publication number Priority date Publication date Assignee Title
US4155122A (en) * 1975-12-02 1979-05-22 Revue Thommen Ag Light shield for welder's mask
US4462661A (en) * 1982-02-23 1984-07-31 Instrument Flight Research Laser protection goggles
US4682007A (en) * 1986-04-17 1987-07-21 Hollander James M Defogging and deicing shield structure
US5172256A (en) * 1988-01-19 1992-12-15 Sethofer Nicholas L Liquid crystal variable color density lens and eye protective devices incorporating the same
EP0331861A1 (fr) * 1988-03-11 1989-09-13 Optrel Ag Dispositif de commande de la transmission d'un filtre de protection contre la lumière
US4968127A (en) * 1988-11-23 1990-11-06 Russell James P Controllable, variable transmissivity eyewear
US4978208A (en) * 1989-07-24 1990-12-18 Hughes Aircraft Company Photoelectronic diode spatial light modulator and eye protection goggles incorporating the same
US5343313A (en) * 1990-03-20 1994-08-30 James L. Fergason Eye protection system with heads up display
US5442478A (en) * 1990-10-30 1995-08-15 The Regents, University Of California Electrochromic device using mercaptans and organothiolate compounds
US5384653A (en) * 1992-11-06 1995-01-24 Midwest Research Institute Stand-alone photovoltaic (PV) powered electrochromic window
US5351151A (en) * 1993-02-01 1994-09-27 Levy George S Optical filter using microlens arrays
SE502840C2 (sv) * 1993-05-10 1996-01-29 Optrel Ag Siktskyddsanordning
DE4330817C1 (de) * 1993-09-13 1994-12-01 Optrel Ag Verfahren zur Steuerung einer Blendschutzeinrichtung und Blendschutzeinrichtung zur Durchführung des Verfahrens
US5930047A (en) * 1995-04-21 1999-07-27 Xelux Holding Ag Anti-glare device
US5671035A (en) * 1995-06-07 1997-09-23 Barnes; Elwood E. Light intensity reduction apparatus and method
US6433913B1 (en) * 1996-03-15 2002-08-13 Gentex Corporation Electro-optic device incorporating a discrete photovoltaic device and method and apparatus for making same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4106019A1 (de) * 1990-03-02 1991-10-02 Neta Holland Lichtdurchlaessiges fenster und dessen elektro-optische steuerung
EP0498143A1 (fr) * 1991-02-08 1992-08-12 Alberto Agostini Dispositif anti-éblouissement actif pour conducteur de voiture automobile et autre véhicule
US5552841A (en) * 1993-10-06 1996-09-03 A B G S.R.L. Liquid crystal eyeglasses

Also Published As

Publication number Publication date
US20040034898A1 (en) 2004-02-26

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