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EP2737362A1 - Dispositif anti-éblouissement électro-optique avec lentilles planes - Google Patents

Dispositif anti-éblouissement électro-optique avec lentilles planes

Info

Publication number
EP2737362A1
EP2737362A1 EP11804912.1A EP11804912A EP2737362A1 EP 2737362 A1 EP2737362 A1 EP 2737362A1 EP 11804912 A EP11804912 A EP 11804912A EP 2737362 A1 EP2737362 A1 EP 2737362A1
Authority
EP
European Patent Office
Prior art keywords
glare device
electro
control circuit
liquid crystal
optical
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.)
Withdrawn
Application number
EP11804912.1A
Other languages
German (de)
English (en)
Inventor
René Werthmüller
Livio Ghisleni
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.)
WERTHMUELLER, RENE
Original Assignee
Eyerex 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 Eyerex AG filed Critical Eyerex AG
Publication of EP2737362A1 publication Critical patent/EP2737362A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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 modulating; Non-linear optics
    • G02F1/01—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 modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—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 modulating; Non-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—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
    • A61F9/023—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 with variable transmission, e.g. photochromic
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/101—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having an electro-optical light valve
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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 modulating; Non-linear optics
    • G02F1/01—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 modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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 modulating; Non-linear optics
    • G02F1/01—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 modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133526—Lenses, e.g. microlenses or Fresnel lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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 modulating; Non-linear optics
    • G02F1/01—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 modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1313—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 modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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 modulating; Non-linear optics
    • G02F1/01—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 modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G02F1/13318—Circuits comprising a photodetector
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/01—Function characteristic transmissive

Definitions

  • Electro-optic anti-glare device with plano lenses Electro-optic anti-glare device with plano lenses
  • the present invention relates to an electro-optical glare protection device in the form of spectacles, a visor, a mask or a helmet according to the preamble of claim 1.
  • Such anti-glare devices in particular sunglasses, have a liquid crystal cell (LCD), whose transparency (opacity or transmittance) by means of a suitable electronic control - as disclosed, for example, in US-6'501'443 or EP-2'156'241 - can be changed.
  • LCD liquid crystal cell
  • the structure of such sunglasses and the liquid crystal cells used for this purpose is well known and, for example, in the
  • thermoformed lens systems and deformed thin-film systems have mechanical stresses which are unacceptable for their ophthalmic use, and especially in the context of electro-optical sunglasses.
  • all these manufacturing methods require extremely precise and expensive devices, which lead to undesirably high production costs.
  • we would like to point out sen that liquid crystals when applying an electrical voltage not only align their dipolar molecules, but also their optical density, respectively. their refractive index, change.
  • the longer-term operation of curved liquid crystal cells always leads to irreversible impairment of the optical properties due to the molecular segregation occurring.
  • WO-2008/148240 is in its entirety part of the present description and will therefore not be further explained. This mode of operation has the advantage that the user is not exposed to flicker effects in harsh environmental conditions and the power consumption can be reduced in the case of long-term use.
  • an electro-optical anti-glare device with a curved To provide viewing window which does not have the disadvantages of the known electro-optical anti-glare devices, ie no reflections, no ophthalmic defects generated, even with long-term use has stable optical properties and can be produced in a simple manner, ie industrial and inexpensive.
  • any form of ophthalmic optics should be understood, in particular spectacle lenses, helmet, mask or visor for vision protection or as visual aids.
  • this anti-glare device should be as user-friendly as possible, ie
  • the anti-glare device which has the features of claim 1.
  • the anti-glare device according to the invention is designed in the form of spectacles, a visor, a mask or a helmet and comprises at least one viewing window curved at least on one side.
  • This lens is multi-layered and has at least one plane-parallel liquid crystal cell. On this plane-parallel liquid crystal cell, a plane lens is applied at least on one side in order to form a viewing window with a curved surface.
  • the liquid crystal cell can be connected on both sides with curved planar lenses, in particular with spherical, aspherical, toric, cylindrical, convex or concave plan lenses, to form a neutral lens or ophthalmic lens and especially also a multifocal or progressive lens.
  • curved planar lenses in particular with spherical, aspherical, toric, cylindrical, convex or concave plan lenses, to form a neutral lens or ophthalmic lens and especially also a multifocal or progressive lens.
  • at least the plane-parallel liquid crystal cell is prefabricated with an outer contour corresponding to the inner contour of a socket or a holder.
  • the visor constructed according to the invention may also comprise at least one polarizing film and / or at least one color filter and / or at least one further liquid crystal cell, for example for changing the coloration and / or for displaying data and information, and / or at least one transparent photocell.
  • the lens also includes a Fresnel lens. It is understood that the individual optical elements of the viewing window can be made of different materials, in particular of glass or plastic.
  • a plane-parallel liquid crystal cell a conventional liquid crystal cell can be used as well as a modern guest-host cell or similar-acting liquid crystal cells.
  • the inventive anti-glare device whose electronic control circuit for changing the transmittance of the lens and / or the switch for activating resp.
  • Deactivating the electronic control circuit and / or a controller for controlling the electronic control circuit at least partially in a version of the anti-glare device, in particular in a spectacle frame and / or in a holder for the anti-glare device, in particular in at least one temple, integrated.
  • this controller is manually, automatically, sensor-controlled and / or wireless actuated.
  • further electrical functions for example the regulation of the detector sensitivity and / or optical functions, for example the regulation of the coloring or 3D functions of the viewing windows, can be regulated.
  • this switch is coupled via a switching electronics with an electronic detection device for determining a mode "worn", or “unworn” coupled to the anti-glare device.
  • This electronic detector device comprises at least one detector (not shown) for determining a physiological value of a body zone of a carrier, wherein the switching electronics is designed such that the electronic control circuit of the anti-glare device is switched on, if the mode "worn” and the electronic control circuit the anti-glare device can be switched off if the mode "ungetra- Thus, the inventive anti-glare device can be switched on or off in a controlled manner.
  • the value determined by the electronic detector device may be a physical value exerted on the detector by the body zone of the wearer, such as pressure, tension, torsion, or the heat or moisture emitted by the body zone.
  • the value determined by the electronic detector device is noncontact, i. Inductive, capacitive, acoustic or optical, determined physical value, such as. A caused by the body zone at the detector changes the electromagnetic field or the spatial position to the body zone of the wearer or an acoustic (voice-controlled) or an optical (infrared) signal a Remote control.
  • the value determined by the electronic detector device is a chemical value, such as a chemical change caused by the body zone at the detector.
  • the anti-glare device In a development of the anti-glare device according to the invention, the latter is designed in such a way that the electronic control circuit is "unworn" in the mode detected in a current-reduced, stand-by or de-energized operating state.
  • the electronic control circuit is designed for a "normally-black" operation, as described in detail in WO-2008/1 8240, and in particular has the at least one viewing window in the deactivated state has a transmittance in the range of 5 - 10% or less, and has a transmittance in the range of 20 - 40% or more when activated.
  • the electronic control circuit includes a flip-flop circuit with which the polarity of the operating voltage applied to the liquid crystal cell (LCD) can be changed at least when changing the detected mode.
  • LCD liquid crystal cell
  • the term "liquid crystal cell” here means all forms of liquid be understood crystal cells, in particular with active or passive matrix, for example, TN, STN, DSTN or TSTN cells.
  • the switching electronics are coupled to at least one additional electronic device, such as a hearing aid, a radio, a music player, a radiotelephone, a museum guide or audio guide.
  • the advantages of the viewing windows constructed in accordance with the invention are readily apparent to the person skilled in the art and can be seen in particular in the simple production method and the simple adaptability of the production process to individual embodiments.
  • the contour of the viewing glass already in the production of liquid crystal cells in advance and easily adapted to the shape and size of glasses or can in the production of plano lenses their ophthalmic correction (normal, short, farsightedness, strabismus, astigmatism, etc .) can be easily calculated and varied.
  • this anti-glare device With the present anti-glare device, ophthalmic defects such as occur with curved liquid crystal cells can be prevented in a surprisingly simple manner and have stable optical properties even in the case of long-term use.
  • this anti-glare device can be produced industrially and inexpensively.
  • this antiglare device can be operated in a power-saving and flicker-free manner and turns out to be user-friendly, ie. Minimized power consumption can be ensured by having the anti-glare device switched on or off in a controlled manner.
  • the anti-glare device according to the invention is used in all types of protective goggles or protective helmets, in particular sunglasses, ski goggles, snow and glacier glasses, cyclist or driver's goggles, racing car and motorcycle helmets, diving or aviator goggles, laboratory goggles and in all other ophthalmic devices can be.
  • protective goggles or protective helmets in particular sunglasses, ski goggles, snow and glacier glasses, cyclist or driver's goggles, racing car and motorcycle helmets, diving or aviator goggles, laboratory goggles and in all other ophthalmic devices can be.
  • FIG. 1 shows a spatial representation of a pair of sunglasses of a known type with a planar spectacle lens construction
  • Fig. 2 is a schematic representation of a cross-section through a curved sunglasses spectacle assembly of known type
  • 3a, b a schematic representation of a cross section through a viewing window according to the invention as a neutral lens
  • 5a, b a schematic representation of a cross section through a viewing window according to the invention as a negative lens; a schematic diagram of the transmission behavior of a preferred embodiment of the inventive anti-glare device; a schematic diagram of the control circuit of the fiction, contemporary anti-glare device.
  • the illustrated in Fig. 1 electro-optical sunglasses (1 1) known type has plane lenses (12), each having a arranged between two plane-parallel glasses liquid crystal cell and are held in a spectacle frame (13).
  • a photodetector (14) is electronically connected to a control circuit (15) for this liquid crystal cell.
  • On the spectacle frame (13) mounted photocells (16) provide this control circuit (15) with the necessary energy.
  • the control circuit (15) can be set manually.
  • a part of the control circuit (15) and / or the power supply can also be accommodated in the eyeglass temples (19).
  • the sunglass lens assembly (21) shown in Fig. 2 shows a curved liquid crystal cell (22) disposed between different optical layers.
  • an incident light beam (23) first passes through a polarizing film (24), an electrically conductive substrate (25) and a filter layer (26) before it passes through the liquid crystal cell (22).
  • the transmitted light beam (27) has a higher or lower light intensity.
  • the inventive viewing window in the form of a neutral lens (31) shown in FIG. 3a comprises a liquid crystal cell (32), which is arranged between two symmetrical plano-convex lenses (33, 34).
  • the viewing window shown in FIG. 3b shows a neutral lens (35) with a liquid crystal cell (36), which is arranged between two symmetrical plano-concave lenses (37, 38).
  • FIG. 4a shows a viewing window formed as a positive lens (41) which has two plano-convex lenses (42, 43) with unequal radii of curvature. According to the invention, these plan lenses (42, 43) are applied flat on a liquid crystal cell (44).
  • FIG. 4b of a lens designed as a positive lens (45) shows a plano-concave lens (46) and a plano-convex lens (47) with unequal radii of curvature, which are flatly mounted on a liquid crystal cell (48).
  • 5a comprises a plano-convex lens (52) and a plano-concave lens (53) with unequal radii of curvature, which are fastened flat on a plane-parallel liquid crystal cell (54).
  • the lens assembly in the form of a negative lens (55) shown in FIG. 5b comprises two plano-concave lenses (56, 57) with unequal radii of curvature which are connected in a planar manner to a plane-parallel liquid crystal cell.
  • the diagram shown in FIG. 6 shows the transmission behavior of an antiglare device operated according to the invention in a darkened and brightened state.
  • the liquid crystal cell (LCD) In a dark environment, ie with little ambient light, the liquid crystal cell (LCD) is activated and energized. The transmittance of the light is maximum at these ratios, ie the anti-glare device is brightened as much as possible.
  • the control electronics In a bright environment, the control electronics switch off the liquid crystal cell (LCD) and the transmittance is minimal. In darkness, the liquid crystal cell (LCD) is thus activated.
  • the interruptions generated by the AC operation of the activated liquid crystal cell (LCD) generate at regular intervals obscuring moments 61, as they also occur with each blink. Such obscuring moments 61 are familiar to the user and do not lead to any impairment or side effect.
  • FIG. 7 shows the mode of functioning of the anti-glare device according to the invention and in particular of the control electronics 75 with the wear switch 78.
  • a photocell Z photodiode
  • This threshold S generates a control signal B, which is supplied to an oscillator O.
  • Threshold signal generated which causes the liquid crystal cell (LCD) is activated and the lens brightens again.
  • the switch 77 is coupled to a support switch 78, which links the switch 77 via a switching electronics 73 with a detector device 74.
  • the electronic detector device 74 detects whether the anti-glare device is worn by the user as intended, or has been pushed aside or put aside by the user. In this case, this detector device generates control signals for determining a mode "worn", or "unworn”.
  • This detector device 74 comprises at least one detector (not shown) for determining a physiological value of a body zone of a wearer.
  • the value determined by the electronic detector device 74 may be a physical value exerted on the detector (not shown) by the wearer's body zone, such as pressure, tension, torsion, or the heat or moisture emitted by the body zone.
  • the value determined by the electronic detector device 74 can also be a non-contact, ie, inductively, capacitively, acoustically or optically determined physical value, such as a change in the electromagnetic field caused by the body zone at the detector or the spatial position to the body zone of the wearer or an acoustic (voice-controlled) or optical (infrared) signal from a remote control.
  • the value determined by the electronic detector device 74 may be a chemical value, such as a chemical change caused by the body zone at the detector.
  • a chemical value such as a chemical change caused by the body zone at the detector.
  • the switching electronics 73 is designed such that the electronic control circuit 75 of the anti-glare device is switched on when the mode is "worn” and the electronic control circuit 75 of the anti-glare device can be switched off when the mode is "unworn”. This is controllable on or off.
  • the electronic control circuit 75 is designed in such a way that, in the detected mode, it is "unworn” in a current-reduced, stand-by or de-energized operating state. It is understood that the electronic control circuit 75 is preferably designed for a "normally black" operation and in particular the at least one viewing window in the deactivated state has a transmittance in the range of 5 - 15% or less and in the activated state a transmittance in the range of 15-40% or more.
  • the electronic control circuit 75 comprises a flip-flop circuit F with which the polarity of the the liquid crystal cell LCD operating voltage is changeable at least when changing the mode.
  • the contour of the spectacle lens can already be adapted in advance and in a simple manner to a standardized spectacle shape and size during the production of the liquid crystal cells, or its ophthalmic correction can be calculated and varied in a simple manner during the production of the plan lens.
  • additional circuits 71 and / or control circuits 76 a wide variety of applications can be implemented in a simple manner, for example.
  • Other electrical functions eg. The control of Detektor basic- speed and / or optical functions, eg.
  • inventive anti-glare device can also be equipped with a hearing aid, a radio, a music player, a radio, a museum guide or audioguide.
  • inventive lenses are suitable for industrial production and at the same time allow easy adaptation to individual needs.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Eyeglasses (AREA)

Abstract

L'invention concerne un dispositif anti-éblouissement électro-optique comportant une cellule de cristal liquide (LCD) et un câblage de commande électronique (75) pour la commande cette dernière, une cellule de cristal liquide (LCD) limitée par des plans parallèles étant appliquée au moins sur une face d'une lentille plane (33, 34, 37, 38, 42, 43, 46, 47, 52, 53, 56, 57) pour former une lentille neutre (31, 35) ou une lentille ophtalmique (41, 45, 51, 55) et en particulier pour former une lentille multifocale ou progressive. Ce dispositif anti-éblouissement électro-optique est utilisé de préférence dans le mode « normally black » et comporte un commutateur de port (78) qui détecte si ce dispositif anti-éblouissement est porté ou est poussé ou placé de côté.
EP11804912.1A 2011-01-31 2011-12-20 Dispositif anti-éblouissement électro-optique avec lentilles planes Withdrawn EP2737362A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00174/11A CH704413A2 (de) 2011-01-31 2011-01-31 Elektrooptische-Sonnenbrille und Verfahren zur Herstellung derselben.
PCT/CH2011/000303 WO2012103657A1 (fr) 2011-01-31 2011-12-20 Dispositif anti-éblouissement électro-optique avec lentilles planes

Publications (1)

Publication Number Publication Date
EP2737362A1 true EP2737362A1 (fr) 2014-06-04

Family

ID=45445657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11804912.1A Withdrawn EP2737362A1 (fr) 2011-01-31 2011-12-20 Dispositif anti-éblouissement électro-optique avec lentilles planes

Country Status (4)

Country Link
US (1) US20140092328A1 (fr)
EP (1) EP2737362A1 (fr)
CH (1) CH704413A2 (fr)
WO (1) WO2012103657A1 (fr)

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EP3241533A1 (fr) 2016-05-04 2017-11-08 3M Innovative Properties Company Blindage de protection oculaire incurvé pour protection de soudage
IT202000000526A1 (it) * 2020-01-14 2021-07-14 Out Of S R L Maschera di protezione per gli occhi per la pratica di sport invernali
CN114609835B (zh) * 2022-05-10 2022-08-23 浙江大学 一种液晶变焦曲面透镜及其制备方法、成像系统
US20240184146A1 (en) * 2022-12-02 2024-06-06 Pixieray Oy Adaptive lenses with photovoltaic devices
IT202300004362A1 (it) * 2023-03-09 2024-09-09 Out Of S R L Dispositivo oftalmico correttivo di difetti visivi e protettivo dalla luce ambientale

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US20140092328A1 (en) 2014-04-03
CH704413A2 (de) 2012-07-31

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