• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to anti-glare glasses (1) intended to be worn by a user, the spectacles comprising at least one anti-glare screen (8) switchable between a first state in which the screen is capable of allowing vision. of the user and a second state in which the screen is able to obscure the vision of the user, the glasses (1) further comprising an automatic switching device (5) configured to detect a geographical configuration of the glasses ( 1) to switch the anti-glare screen (8) into the second state when the glasses (1) have a geographical configuration (6) which belongs to a set of predetermined geographical configurations (10), and to switch the screen anti-glare (8) in the first state, when the glasses (1) have a geographical configuration that does not belong to said set (10).
    公开号:FR3039291A1
    申请号:FR1556981
    申请日:2015-07-23
    公开日:2017-01-27
    发明作者:David Hue；Hafid El-Idrissi
    申请人:Valeo Vision SA；
    IPC主号:
    专利说明:

    Anti-glare glasses equipped with an automatic switching device.
    The present invention relates to anti-glare glasses provided with an automatic switching device.
    In a number of situations, one or more elements present in the road scene may disturb a clear view of that road scene, and in particular may dazzle the driver or passengers. If passengers can look away from the road scene to avoid being dazzled, the driver can not afford to take his eyes off the road scene, for obvious safety reasons.
    These situations can occur during the day, when the external brightness is variable in significant proportions, for example in sunny weather, when various events can alternately significantly illuminate the road scene and darken it. These situations can also be encountered at night, when the external brightness is low, and requires the ignition of the dipped beam (also called codes).
    To avoid being dazzled, it has already been proposed adaptive anti-glare glasses for driver or passenger of a motor vehicle, the glasses comprising glasses provided with a screen capable of obscuring or letting light, the transmission coefficient of glasses being defined by pulse width modulation. The modulation being operated electronically, the glasses require the use of batteries to control the screen.
    Therefore, the glasses are additionally provided with a switch to turn them on and off when they are not used. Thus, the energy stored in the batteries is saved in particular so as not to have to recharge them often and always have them in working order.
    However, the use of these glasses requires handling that is not easy when a driver wants to use it while driving. Indeed, he must press a first time on the switch to turn them on and a second time to turn them off when he no longer has the use. For safety reasons, the driver is either obliged to stop to turn them on or off, or forced to leave them constantly on for not having to perform these manipulations, which decreases the interest of such a switch.
    The object of the invention is to remedy these drawbacks, and aims to provide a pair of anti-glare glasses that turn on automatically when the user wears them and turn off automatically when removing them without resorting to an operation additional.
    For this, the invention relates to anti-glare glasses, intended to be worn by a user, the glasses comprising at least one sunscreen switchable between a first state in which the screen is capable of allowing the vision of the user and a second state in which the screen is able to obscure the vision of the user, the glasses further comprising an automatic switching device configured to detect a geographical configuration of the glasses in order to switch the anti-theft screen. glare in the second state when the spectacles have a geographical configuration that belongs to a set of predetermined geographical configurations, and to switch the anti-glare screen in the first state, when the glasses have a geographical configuration that does not belong to said set .
    Thus, the glasses operate automatically when they are positioned in the predetermined area and stop working when they are outside, without the need for a switch. By defining, for example, the predetermined area in the face of a user, it is sufficient that the user places the glasses on his nose to trigger their operation. When the user removes them, the glasses turn off automatically.
    Thanks to the invention, the glasses batteries are saved, which makes it possible to recharge them less often, and thus to avoid an untimely stop during operation.
    According to various embodiments of the invention, which may be taken together or separately: the geographical configurations are positions and / or orientations and / or inclinations and / or determined movements of the glasses in a given reference frame; geographical configuration of the glasses is its position in the space, - the set of geographical configurations defines at least one predetermined zone in the space, - the switching device comprises a unit of memory in which the set is stored, - the occultation by the anti-glare screen is partial, - the concealment by the anti-glare screen is substantially complete, - the switching device comprises a first sensor to determine a position of the glasses, - the first sensor is a sensor inertial, - the first sensor is integrated into a frame of the glasses, - the switching device comprises a second sensor arranged at a distance from the glasses to determine a relative position of the spectacles, - the automatic switching device comprises a camera disposed at a distance from the frame of the spectacles and configured to detect the spectacles when they are in the predetermined zone, - the device automatic switching device comprises means for controlling the switching of the screen according to the position of the glasses, - the anti-glare screen is provided with a variable transmission coefficient, - the transmission coefficient is determined by modulation of pulse width with a given duty cycle, - the modulation is carried out at a fixed frequency with a variable duty cycle, - the glasses comprise means of control of the duty cycle, - the glasses comprise at least one glass, the anti-theft screen. glare being carried by the glass, the anti-glare screen is disposed on a second side of the glass, the incident light being intended to pass through the glass of the second side of the glass towards a first side, - said anti-glare screen is provided with a vertically polarized layer and a horizontally polarized layer, - the anti-glare screen. The dazzle is provided with an activatable liquid crystal layer arranged between the two polarization layers. The invention also relates to an assistance device for driving a motor vehicle, especially at night, comprising anti-glare glasses provided with an automatic switching device according to the invention. Where appropriate, the predetermined zone or zones are zones defined in the passenger compartment of the vehicle. The invention will be better understood in the light of the following description which is given for information only and which is not intended to limit it, accompanied by the attached drawings among which: FIG. 1 schematically illustrates , a perspective view of a pair of anti-glare goggles, - Figure 2 schematically illustrates a perspective view of a pair of anti-glare goggles provided with an automatic switching device according to the invention.
    As illustrated in FIG. 1, the glasses 1 here have two glasses 2, two branches 3 and an armature 4 on which the lenses 2 are fixed. In the description of the invention, the term glass designates the object fixed to the frame and through which the wearer of the glasses looks at the scene in front of him. The glass 2 may be made of a mineral or organic glass material for example, but also in any other material known to those skilled in the art for this purpose.
    The wearer or user of the glasses 1 is located on a first side of the glasses 2, and the scene he observes is located on a second side of the lenses 2. Thus, the incident light arrives on the lenses 2 coming from the second side, then through the outer face of the glasses, and out the inner side to the wearer glasses.
    The glasses further comprise an anti-glare screen 8 switchable between a first state in which the screen is capable of allowing the user's vision and a second state in which the screen is capable of obscuring the vision of the user. user. The occultation is here partial to allow to attenuate the intensity of the incident light intended to pass through the glass towards said user. Here, the anti-glare screen 8 is disposed on the second side of the lens 2, for example on the outer face of the lenses 2, on the other side of the user relative to the glasses.
    To reduce glare, the anti-glare screen 8 is provided with a variable transmission coefficient to reduce the intensity of the incident light. Depending on the value of the transmission coefficient, the anti-glare screen 8 passes a more or less significant portion of the incident light. The transmission coefficient of the anti-glare screen 8 makes it possible to reduce the intensity of the incident light for the comfort of the user. The first state corresponds to a high transmission coefficient, and the second state corresponds to a lower transmission coefficient.
    The transmission coefficient is determined by pulse width modulation. The modulation is performed at a fixed frequency, preferably at least 100 Hz, with a duty cycle defining the transmission coefficient of the screen. The anti-glare screen 8 therefore has a light transmission coefficient which varies periodically between: a maximum value, for which the transparency is maximum for a time t1, and a minimum value, for which the transparency is minimal for a time t2.
    A cyclic ratio a is determined by the ratio between the duration t1 during which the transmission is maximum, and the duration T of the period, and thus varies from 0 to 100%:
    By changing the duty cycle, the time t1 during which the transparency is maximum is elongated or shortened, compared to the time t2 during which the light does not pass. Thus, by increasing t1, the duty ratio increases, and increasing t2, the duty cycle decreases. In average value, the transmission coefficient is thus dependent on the value of the duty cycle a.
    The scene in front of the wearer of the glasses 1 is only visible for a fraction of time equal to the duty cycle a. The apparent brightness, through the screen 8 with variable transmission, is therefore decreased relative to the actual brightness by a factor equal to (1 -a).
    In addition, said glasses 1 are configured to adapt the transmission coefficient of the screen 8 as a function of the intensity of the incident light. The glasses allow to protect it from a significant luminosity. For this, the glasses 1 comprise control means 9 of the transmission coefficient arranged here on the branches 3 of the glasses 1, near the screen 8. The transmission coefficient is controlled either in instantaneous value or in average value. For example, by choosing a specific duty cycle, a corresponding transmission coefficient is defined.
    Thus, the duty cycle is variable and chosen according to the light intensity of the incident light. In order to measure the light intensity of the incident light, the glasses 1 may comprise a brightness sensor, not shown in the figures, which provides a measurement of the intensity to the control means 9. The control means 9 determine the value of the cyclical report according to this measure.
    The glasses are further provided with one or more batteries 14 or batteries, which provide the energy necessary for the operation of the screens 8 of the glasses 1. The batteries 14 are preferably arranged at the level of the control means 9, in the branches 3.
    In a first embodiment, the anti-glare screen 8 is provided with a vertically polarized layer and a horizontally polarized layer, arranged on the glass, and a liquid-crystal layer arranged between the two polarization layers. The polarization layers each polarize the incident light in a different direction. In the liquid-crystal layer, the direction of the polarized light is modified by the liquid crystals. The orientation of the liquid crystals determines the direction of polarization of the light. Thus when they are oriented in a direction that modifies the polarization in the same direction as that of the polarization layer that follows, the light passes through. On the other hand, if the direction is different, the light is not transmitted to the wearer of the glasses 1.
    Thus, the modulation is carried out by orienting the liquid crystals in the same direction as that of the next polarization layer during the time t1, to transmit the light, then orienting it in a different direction during the time t2, to block the light.
    In a second embodiment, the anti-glare screen 8 is provided with a micro-electromechanical layer of the MEMS (micro-electro-mechanical system) type, arranged on the glass 2. This layer is composed of electrically actuatable microelectronic elements which block or let incident light pass. Microelectromechanical systems are, for example, of the type described in document US Pat. No. 7,684,105. Here, the modulation is carried out by letting the incident light pass during the time t1, and blocking it during the time t2, by actuating the layer MEMS.
    As shown in FIG. 2, the spectacles 1 comprise an automatic switching device 5 to avoid complicated manipulations and to save the energy of the batteries 14. The switching device 5 is configured to define a set of geographical configurations, here a zone 10, in which the glasses 1 operate automatically. In other words, the anti-glare screens are switched to the second state when the glasses 1 are in this predetermined zone 10, without the user having to trigger the switching of the screens himself.
    For this, the switching device 5 is configured to detect the position 6, 7 of the glasses in order to be able to switch the anti-glare screens in the second state when the glasses have a position 6 which belongs to the predetermined zone 10, and to switch the screens in the first state, when the glasses 1 have a position 7 outside the zone 10. The automatic switching device 5 further comprises means 12 for controlling the switching of the screens by means of the control means 9 .
    In a first embodiment, represented in FIG. 2, the switching device 5 comprises a camera 11 for detecting the position 6, 7 of the glasses 1, and which is connected to the control means 12. The camera 11 and the means of The control means 12 have, for example, an image processing software capable of recognizing the glasses. Advantageously, the armature 4 is provided with a distinctive sign 13 easily recognizable by the camera 11 and the control means 12. The control means 12 are furthermore provided with a transmitter and the glasses are provided with a receiver for transmitting to the control means 9 glasses 1 a switching order of the anti-glare screens.
    Thus, thanks to the camera 11, when the control means 12 detect that the glasses 1 are in a first position 6 located inside the predetermined zone 10, they control the switching of the anti-glare screens in the second state, preferably according to the method described above. And when the control means 12 detect that the glasses 1 are in a second position 7, located outside the predetermined zone 10, they transmit to the control means 9 an order to switch the anti-glare screens in the first state.
    Preferably, the control means 12 are configured to control the switching of the anti-glare screens as soon as the control means 12 detect the glasses 1 in the field of view of the camera 11. Thus, the predetermined zone 10 is defined by the field of view of the camera 11.
    For example, for use in a motor vehicle, the control means 12 and the camera 11 are, for example, arranged in the dashboard of the vehicle. The field of view of the camera is directed towards the top of the vehicle seat, for example that of the driver, so as to detect whether the driver wears the glasses 1 on his face. Thanks to the invention, as soon as the driver puts the glasses 1 to avoid being dazzled, said glasses 1 are automatically switched to the second state, without resorting to the manipulation of a switch. And in order to save the energy of the batteries 14, when the driver removes the glasses, they are automatically switched to the first state, stopping here the modulation of the anti-glare screens.
    In a second embodiment, not shown in the figures, the automatic switching device comprises a first inertial sensor integrated with the frame of the glasses to determine the position of the glasses. The means for controlling the switching of the glasses are for example integrated into the frame of the glasses. The inertial sensor determines a position of the glasses, which is transmitted to the control means so that they determine whether the glasses are in a predetermined area. The predetermined zone is for example chosen around a reference position of the passenger compartment of the vehicle. The use and operation of the glasses is the same as in the first embodiment.
    In an alternative embodiment of the second mode, the switching device comprises, in addition to a first sensor integrated in the frame of the glasses, a second inertial sensor arranged at a distance from the frame of the glasses, for example in the table of edge of the vehicle. Thus, this makes it possible to determine a relative position of the first sensor with respect to the second sensor, and therefore glasses relative to the dashboard. The predetermined zone is here defined relative to the second inertial sensor, which is fixed. When the first sensor is in the predetermined zone, the glasses are switched to the second state, then to the first state when the first sensor is no longer in the zone. The switching device also includes a transmitter and a receiver for transmitting the relative position between the two sensors.
    权利要求:
    Claims (15)
    [1" id="c-fr-0001]
    1. Anti-glare glasses (1), intended to be worn by a user, the glasses comprising at least one anti-glare screen (8) switchable between a first state in which the screen is capable of allowing the vision of the user and a second state in which the screen is able to obscure the vision of the user, the glasses (1) further comprising an automatic switching device (5) configured to detect a geographical configuration of the glasses (1) so as to to switch the anti-glare screen (8) into the second state when the glasses (1) have a geographical configuration (6) which belongs to a set of predetermined geographical configurations (10), and to switch the anti-glare screen (8) in the first state, when the glasses (1) have a geographical configuration that does not belong to said set (10).
    [2" id="c-fr-0002]
    2. Glasses according to claim 1, wherein the geographical configuration of the glasses (1) is its position in space, and the set of geographical configurations (10) defines at least one predetermined zone in space.
    [3" id="c-fr-0003]
    3. Glasses according to claim 2, wherein the switching device (5) comprises a first sensor adapted to determine a position of the glasses (1).
    [4" id="c-fr-0004]
    4. Goggles according to claim 3, wherein the switching device (5) comprises a second sensor arranged at a distance from the glasses (1) to determine a relative position of the glasses (1).
    [5" id="c-fr-0005]
    5. Glasses according to any one of claims 2 to 4, wherein the switching device (5) comprises a camera (11) disposed at a distance from the frame (4) of the glasses (1) and configured to detect the glasses when they are in the predetermined zone.
    [6" id="c-fr-0006]
    Glasses according to any one of claims 2 to 5, in which the automatic switching device (5) comprises means (12) for controlling the switching of the screen (8) as a function of the position (6, 7) glasses (1).
    [7" id="c-fr-0007]
    7. Goggles according to any one of the preceding claims, wherein the anti-glare screen (8) is provided with a variable transmission coefficient.
    [8" id="c-fr-0008]
    8. Glasses according to claim 7, wherein the transmission coefficient is determined by pulse width modulation with a determined duty cycle.
    [9" id="c-fr-0009]
    9. Glasses according to claim 8, wherein the modulation is performed at a fixed frequency with a variable duty cycle.
    [10" id="c-fr-0010]
    10. Glasses according to claim 9, wherein the glasses (1) comprise control means (9) of the duty cycle.
    [11" id="c-fr-0011]
    11. Glasses according to any one of the preceding claims, comprising at least one glass (2), the anti-glare screen (8) being carried by the glass (2).
    [12" id="c-fr-0012]
    12. Spectacles according to claim 11, wherein the anti-glare screen (8) is arranged on a second side of the glass, the incident light being intended to pass through the glass of the second side of the glass to a first side.
    [13" id="c-fr-0013]
    The spectacles according to any one of the preceding claims, wherein said anti-dazzle screen (8) is provided with a vertically polarized layer and a horizontally polarized layer.
    [14" id="c-fr-0014]
    The spectacles according to claim 13, wherein the anti-glare screen (8) is provided with an activatable liquid-crystal layer arranged between the two polarization layers.
    [15" id="c-fr-0015]
    15. Device for assisting the driving of a motor vehicle, especially at night, comprising anti-glare goggles (1) provided with an automatic switching device (5) according to any one of the preceding claims.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3121644A1|2017-01-25|Anti-glare spectacles provided with an automatic switching device
    EP3049855A1|2016-08-03|Data-display glasses comprising an anti-glare screen
    EP3049283B1|2020-09-09|Driving assistance device and method
    FR2988493A1|2013-09-27|ADAPTIVE EYEWEAR FOR DRIVER OR PASSENGER OF MOTOR VEHICLE
    EP2830900B1|2017-08-30|Device for nighttime motor vehicle driving assistance
    EP3049280B1|2020-06-03|Driving assistance device and method
    FR2993509A1|2014-01-24|ELECTRONIC DEVICE FOR PROTECTION AGAINST LIGHTENING OF A PILOT OR DRIVER.
    EP3049854A1|2016-08-03|Data-display glasses comprising an anti-glare screen
    EP2830899B1|2020-04-08|Method and device for the support of daylight driving of vehicles
    WO2015044286A1|2015-04-02|Anti-glare 3d glasses
    EP3349059B1|2019-11-27|Sectorised adaptive screen and driver assistance system comprising such an adaptive screen
    FR3073053A1|2019-05-03|OPTICAL SYSTEM WITH HEAD-HIGH DISPLAY AND INTEGRATED LIGHTING
    FR3056501A1|2018-03-30|MOTOR VEHICLE IDENTIFICATION ASSISTANCE SYSTEM AND METHOD FOR IMPLEMENTING THE SAME
    FR3011092A1|2015-03-27|DATA DISPLAY LENSES HAVING AN ANTI-GLARE SCREEN
    FR3085923A1|2020-03-20|SNOW DETECTION DEVICE ON A GLASS SURFACE OF A MOTOR VEHICLE
    FR3073054A1|2019-05-03|OPTICAL SYSTEM WITH HEAD-UP DISPLAY AND INTEGRATED CAMERA
    WO2020007624A1|2020-01-09|Panoramic rear-view device using head-up display cameras
    WO2016008984A1|2016-01-21|Display device, especially for an automotive vehicle, and operating method
    FR3083331A1|2020-01-03|AUGMENTED REALITY DEVICE FOR VEHICLE
    FR2515832A1|1983-05-06|Spectacles giving panoramic view - has double mirror for each lens giving view to rear
    FR2810203A1|2001-12-21|DEVICE FOR IMMOBILIZING A HELMET IN RELATION TO THE HEAD OF A WEARER AND APPLICATIONS
    同族专利:
    公开号 | 公开日
    KR20170012136A|2017-02-02|
    JP2017027052A|2017-02-02|
    FR3039291B1|2018-08-24|
    US20170023802A1|2017-01-26|
    EP3121644A1|2017-01-25|
    CN106371224A|2017-02-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2684770A1|1991-12-05|1993-06-11|Essilor Int|Spectacle frame equipped with liquid-crystal lenses|
    FR3011091A1|2013-09-26|2015-03-27|Valeo Vision|DATA DISPLAY LENSES HAVING AN ANTI-GLARE SCREEN|
    FR3010941A1|2013-09-26|2015-03-27|Valeo Vision|DEVICE AND METHOD FOR DRIVING ASSISTANCE|
    US20040036821A1|2002-08-22|2004-02-26|Optiva, Inc.|Liquid crystal shutter|
    CA2537569C|2005-02-24|2014-04-29|National Research Council Of Canada|Microblinds and a method of fabrication thereof|
    CN201828714U|2010-09-17|2011-05-11|康佳集团股份有限公司|3d glasses|
    US8861937B2|2011-08-31|2014-10-14|The Nielsen Company , Llc|Methods and apparatus to access media|
    FR2988493B1|2012-03-26|2014-11-21|Valeo Vision|ADAPTIVE EYEWEAR FOR DRIVER OR PASSENGER OF MOTOR VEHICLE|
    CN104597622B|2015-02-15|2017-01-11|张晓亮|Anti-dazzling glasses and method|FR3010941B1|2013-09-26|2017-01-13|Valeo Vision|DEVICE AND METHOD FOR DRIVING ASSISTANCE|
    FR3011091A1|2013-09-26|2015-03-27|Valeo Vision|DATA DISPLAY LENSES HAVING AN ANTI-GLARE SCREEN|
    FR3010938B1|2013-09-26|2015-10-30|Valeo Vision|DEVICE AND METHOD FOR DRIVING ASSISTANCE|
    FR3011095B1|2013-09-26|2016-12-23|Valeo Vision|ADAPTIVE OPTICAL FILTER FOR GLASSES OF GLASSES|
    FR3011090B1|2013-09-26|2016-12-23|Valeo Vision|DATA DISPLAY LENSES HAVING AN ANTI-GLARE SCREEN|
    FR3011096B1|2013-09-26|2015-10-16|Valeo Vision|LIGHTWEIGHT ANTI-GLARE AND VISION GOGGLES WITH THREE DIMENSIONS|
    CN107085231B|2017-04-24|2020-03-24|济南中景电子科技有限公司|Positioning calling equipment with self-adaptive function and method for detecting wearing mode of positioning calling equipment|
    CN108327490B|2018-01-30|2020-03-10|成都京东方光电科技有限公司|Anti-dazzling light system and vehicle|
    法律状态:
    2016-07-29| PLFP| Fee payment|Year of fee payment: 2 |
    2017-01-27| PLSC| Publication of the preliminary search report|Effective date: 20170127 |
    2017-07-31| PLFP| Fee payment|Year of fee payment: 3 |
    2018-07-27| PLFP| Fee payment|Year of fee payment: 4 |
    2020-04-10| ST| Notification of lapse|Effective date: 20200306 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1556981|2015-07-23|
    FR1556981A|FR3039291B1|2015-07-23|2015-07-23|ANTI-GLOWING GLASSES PROVIDED WITH AN AUTOMATIC SWITCHING DEVICE|FR1556981A| FR3039291B1|2015-07-23|2015-07-23|ANTI-GLOWING GLASSES PROVIDED WITH AN AUTOMATIC SWITCHING DEVICE|
    US15/214,816| US20170023802A1|2015-07-23|2016-07-20|Anti-glare spectacles provided with an automatic switching device|
    EP16180636.9A| EP3121644A1|2015-07-23|2016-07-21|Anti-glare spectacles provided with an automatic switching device|
    JP2016144281A| JP2017027052A|2015-07-23|2016-07-22|Antiglare spectacle having automatic switching device|
    KR1020160093566A| KR20170012136A|2015-07-23|2016-07-22|Anti-glare spectacles provided with an automatic switching device|
    CN201610585251.XA| CN106371224A|2015-07-23|2016-07-22|Anti-glare spectacles provided with an automatic switching device|
    [返回顶部]