WO2016173574A1 - Dispositif de protection des yeux contre une lumière ou des sources de rayonnement nocives - Google Patents

Dispositif de protection des yeux contre une lumière ou des sources de rayonnement nocives Download PDF

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Publication number
WO2016173574A1
WO2016173574A1 PCT/DE2016/000157 DE2016000157W WO2016173574A1 WO 2016173574 A1 WO2016173574 A1 WO 2016173574A1 DE 2016000157 W DE2016000157 W DE 2016000157W WO 2016173574 A1 WO2016173574 A1 WO 2016173574A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
sensors
image information
digital processing
sensitive
Prior art date
Application number
PCT/DE2016/000157
Other languages
German (de)
English (en)
Inventor
Niels GIERSE
Timo DITTMAR
Original Assignee
Forschungszentrum Jülich GmbH
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 Forschungszentrum Jülich GmbH filed Critical Forschungszentrum Jülich GmbH
Priority to EP16722039.1A priority Critical patent/EP3289402A1/fr
Publication of WO2016173574A1 publication Critical patent/WO2016173574A1/fr

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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0138—Head-up displays characterised by optical features comprising image capture systems, e.g. camera

Definitions

  • the invention relates to a device which protects the eyes from harmful Licht, Radiation sources, in particular the protection against laser beams is used.
  • Full goggles reflect or absorb a laser beam in the infrared, optical or ultraviolet wavelength range completely up to an upper limit pulse energy or continuous power for a certain number of laser pulses or duration.
  • the human eye is fully protected by full goggles in the appropriate wavelength range.
  • Adjustment goggles weaken laser radiation in the optical wavelength range through filters to such an extent that it remains visible to the human eye but does not pose any danger. In both cases, special glasses are used, which is detrimental in several ways.
  • the object of the invention is to provide a device for protecting the eyes from harmful sources of light or radiation, which allows the user's eye to perceive the area of the environment to be observed in almost the same way as without the device , especially with regard to the direction of view, colors and distortions.
  • laser beams with wavelengths outside the optical spectral range are to be made visible by the invention, and signals of different ranges of the electromagnetic spectrum in the representation can be weighted differently, and additional information can be superimposed.
  • the device should be able to detect and suppress pump flashes.
  • the invention relates to a device for protecting the eyes from harmful light or radiation sources, and in particular from laser beams.
  • the device comprises at least one sensor module, a means for digital processing of the image information generated by the sensor assembly, at least one display device for displaying the digitally processed image information and also a holder for receiving the at least one sensor module and the at least one display device.
  • optical wavelength or spectral range is understood to mean wavelengths in the range from 380 nanometers to 780 nanometers. Under the infrared wavelength or spectral range wavelengths between 780 nanometers and 1 millimeter are to be understood. Under the ultraviolet wavelength or spectral range wavelengths between 100 nanometers and 380 nanometers are to be understood. Furthermore, a distinction is made between the visible spectral range, which includes the optical spectral range, and the non-visible spectral range, which includes all other wavelengths, in particular also the IR and UV ranges.
  • the sensor module is at least suitable for recording spatially resolved information about the incident light of the environment for a defined wavelength range of the electromagnetic spectrum.
  • the sensor module consists of at least one sensor.
  • the device can also have additional, additional optical components which map the environment onto the sensor or partial areas of the sensor or also have filtering properties.
  • the sensor is attached to the holder and this if necessary attached to the human head so that the sensor can record image information of the observed area of the environment.
  • the sensor may generally be image sensors (eg CCD sensor (Charge-Coupled Device), EMCCD (electron-multiplying CCD), ICCD (intensified CCD), Active Pixel Sensor (also referred to as CMOS sensor, for example installed in smartphones), which may also be coupled to amplifiers (eg, microchannel plates (MCP), residual light amplifiers, and image converter tubes).
  • image sensors eg CCD sensor (Charge-Coupled Device), EMCCD (electron-multiplying CCD), ICCD (intensified CCD), Active Pixel Sensor (also referred to as CMOS sensor, for example installed in smartphones), which may also be coupled to amplifiers (eg, microchannel plates (MCP), residual light amplifiers, and image converter tubes).
  • MCP microchannel plates
  • sensor types for environmental detection are also possible, for example of active sensors that enable the spatial detection of the environment (eg Kinect camera, ultrasonic sensors or light field cameras).
  • active sensors eg Kinect camera, ultrasonic sensors or light field cameras.
  • imaging sensors for other spectral ranges is conceivable, for example of infrared / thermal cameras or miniaturized gamma cameras.
  • sensors may be used, which may be sensitive in different spectral ranges in order to gather information inside and outside the optical range can. This can be advantageous when working with lasers whose wavelengths are outside the optical spectral range.
  • beam splitters or intensity filters can be used as additional optical components, so that the intensity of the incident light on the sensor can be adapted to the dynamic range of the respective sensor or sensor area or by the simultaneous use of several sensors and different attenuation settings for the respective sensors Monitoring the environment over many dynamic ranges of the respective sensors are enabled.
  • FIG. 1 Such a beam splitter arranged in front of a sensor is shown schematically in FIG.
  • the incident light (1) is split by means of a beam splitter (2).
  • a portion of the light is modified by a filter (3) and registered by a first sensor (4).
  • the other part of the light is registered by another sensor (5).
  • optical components such as lenses, mirrors, beam splitters, filters for attenuation, polarization and wavelength selection, and prisms can be advantageously used to keep the size of the device compact or to provide beams having particular wavelengths or optical properties, e.g. B. polarization to direct targeted to sensitive in these wavelength ranges sensors or sensor areas of the device.
  • these optical components are advantageously each at or before a a sensor or a sensor assembly arranged.
  • Such optionally additional optical components can be used in particular to image different filter settings on different subregions of an image sensor.
  • You can also enable the mapping of spatial areas of the environment to portions of one or more sensors, such B. on the left and right half of a sensor or camera chips. As a result, costs or weight can be saved and miniaturization can be achieved.
  • the means according to the invention for digital processing enables the combination and preparation of the information about the environment obtained from the sensor modules or other external data sources
  • the image information recorded by the sensor module (s) is processed digitally by a means for digital processing, for example a billing stage, so that it can subsequently be transmitted to a display device and displayed on the device in a form recognizable to the eye.
  • a means for digital processing for example a billing stage
  • This means for digital processing of the image information may, for example, be a software application analogous to applications in the field of digital cameras, which processes the sensor information for display on the screen (for example color corrections, increased contrasts, etc.).
  • undesired distortion effects as occur, for example, by using lenses on the sensor or user side can be computationally compensated (for example, so-called barrel correction).
  • the processing makes it possible to process various sensor information on an image, for example an image with increased dynamic range, which represents both the dark environment of a vacuum chamber and the very intense laser pulse within the vacuum chamber. This can be done in a simple version for the complete image or even for individual image areas up to pixelwise separated.
  • the said means should enable the information to be processed together and displayed on a display device.
  • the means referred to are intended to provide information for precise laser beam work. dazzle or weight differently.
  • the summary and weighting of image information by software applications is known, for example, from US 5828793. Such software applications are used, inter alia, as a visual aid in so-called “digital eye glasses” or in so-called “EyeTaps”.
  • the display device is able to display the digitally processed signals for the eye of a user in real time recognizable.
  • the screen of a digital camera or a smartphone with the associated electronic components may be used as such a display device. It is also possible to use projectors (mini-antennas), heads-up displays (HUD) or contact lenses with a built-in screen.
  • projectors mini-antennas
  • HUD heads-up displays
  • contact lenses with a built-in screen.
  • the holder is adapted to fix the at least one sensor structure and the at least one display device to a human head and to ensure adequate protection against the harmful radiation, in particular the laser radiation. Since the invention described here does not require that the holder have openings or must be translucent, this can be achieved very simply by various inexpensive and / or lightweight materials.
  • the holder may consist of a plastic frame and a drawstring.
  • the plastic frame is shaped so that the sensor and the display device can be inserted or inserted into the plastic frame or can be fixed to the plastic frame in another way.
  • the drawstring is able to fix the plastic frame to the human head. It may be attached to the sides of the plastic rack and, for example, run from one side of the plastic rack along the back of the head to the other side of the plastic rack.
  • the holder can advantageously be attached to the user's head in such a way that at least one sensor module and a display device are each arranged in the visual axis of an eye of the user and cover the largest possible area of the field of view.
  • this eye is protected from the action of possible harmful radiation, in particular laser radiation.
  • Only the radiation of the at least one display device strikes the eye with a limited intensity depending on the type of display device. Due to the arrangement of the sensor in the viewing direction of the observer, the viewing angle can advantageously be recorded by the sensor and displayed with the help of the display device Viewer would also see without device.
  • the holder additionally shields the areas of the eyes which are not covered directly by the sensor or the display device.
  • the holder is configured optically impermeable at least at these points.
  • the holder may for example be attached to a helmet or a cap, which can be placed on the head of a viewer.
  • the device may have logarithmically sensitive sensors. These sensors do not transmit the values of the intensity of the radiation incident on the sensor itself, but rather logarithmic values of the intensity, regularly the values of the decadic logarithms of the intensity, from the sensor.
  • the billing step advantageously makes it possible to combine the information from different sensor modules. This is discussed below by way of example:
  • overexposed frames in image processing may be blanked out by the means for digitally processing the signals, e.g. Example, when used in the laboratory flash lamps, of which with a predetermined frequency radiation with high intensity, such as. B. flashes of light emitted.
  • the intensity of the individual images is calculated in real time and, in the case of a clear override, the previous image is displayed for a further frame.
  • the computation step the sensor data from light-sensitive sensor groups that filter out the laser radiation with low-light-sensitive sensors that record the laser radiation to combine.
  • the observation of areas in a structure as well as the observation of the laser radiation is possible.
  • the composition can be controlled specifically.
  • FIG. 2 The operation of such a means for digital processing is shown in Figure 2, wherein two different cases for the image reconstruction (R) are given by way of example.
  • R image reconstruction
  • FIG. 2 In the upper half of FIG. 2, along the time beam t, three individual images are shown in the case of a) the mode of action with a sensor and, in the case b), the mode of operation with two sensors of different sensitivity.
  • the intense light of the laser flash lamp leads to overexposure at the time t2. This is detected by the process stage (P) and instead the sensor image is displayed from the time t1. At time t3, S1 is no longer overexposed and the signal is displayed again. At high frame rates, unpleasant flickering is prevented.
  • the device can advantageously be present as a modular system, which allows easy replacement of individual components such as filters and / or sensors. This would in particular have the advantage that the device according to the invention could easily be adapted to different lasers or other frame conditions without the need for a completely new device.
  • high-resolution sensors ie sensors with a pixel count of over ten megapixels, for observing properties of the laser beam, such. B. the beam profile can be used.
  • Filter wheels or infinitely variable gradient filters can be used here. These can be set optimized by the user for beam observation.
  • the display device may consist in a further embodiment of a screen and an optical structure, the screen is not in front of the user's eye, but the image generated by the screen through the optical structure is shown recognizable for at least one eye.
  • additional means may be provided which allow additional warnings to be displayed on the display device when, for example, the radiation measured by the sensor exceeds a predetermined maximum limit of intensity.
  • This warning could be to display the measured intensity value in a partial area of the display device in red text in front of a suitable background, possibly connected with a warning tone, or else just a warning in the form of a corresponding color field (eg red or green) the display unit.
  • additional information such as information from measuring devices on the display device or on an optical structure can be displayed.
  • the virtual display can also be used for input by measuring the hand position (virtual keyboard, virtual measuring device).
  • the device may optionally also be connected to the laser system via a deadman device.
  • a deadman device advantageously leads to the fact that the laser system is switched off as soon as the display device is removed (for example, by a contact pressure sensor of the device on the head of the observer) or the battery level of the device is critical.
  • the power supply of the device can be advantageously ensured by accumulators, such as those used in mobile devices. These can also be replaced by redundant systems, for example a disposable battery which is used when the accumulator is emptied or a second accumulator can be switched over to it.
  • accumulators such as those used in mobile devices.
  • redundant systems for example a disposable battery which is used when the accumulator is emptied or a second accumulator can be switched over to it.
  • a modular system is conceivable that allows the easy replacement of batteries during operation or with minimal interruption at a designated charging station.
  • the device via control buttons or a Onscreen menu to control the functions of the protection device.
  • This may include basic settings such as screen brightness, warning sound volume, etc. but also provide more extensive interactive functions, such as filter setting and weighting when composing different sensor data to the output image (eg "Laser Sensor Brightness: 30%, Brightness Environment 70 % "). It would also be possible to enter data using data gloves.
  • a camera is usually capable of capturing real-time and true-color video footage of the area of the environment to be observed.
  • the screen can advantageously display these video recordings in true colors.
  • the true colors of the objects of the environment are those colors which, with the wavelengths of the radiation emitted by these objects in the optical wavelength range, produce a sufficiently similar color impression in the human user.
  • the user of the goggles can make as little as possible color differences of the environment under consideration when using the device according to the invention over viewing without this device.
  • the camera and the screen of a smartphone are used.
  • This is arranged by the holder, for example a plastic injection-molded holder with a foam pad for optically impermeable sealing at the edges, in front of an eye of a user.
  • the other eye can be covered by the optically opaque holder and thus protected from the laser beam.
  • camera and screen are integrated in one device.
  • a smartphone is arranged in front of one eye each by the holder.
  • the spatially offset images of the smartphones can advantageously convey the impression of spatial depth. This makes estimates of distances possible and would be advantageous for practical work in a laboratory.
  • At least one smartphone and the corresponding eye of the observer arranged at least one additional displaceable optical lens.
  • an optical lens as a converging lens, the images of the camera shown on the screen of the smartphone can be made visible to the eye even at small distances between the screen and the eye of the beholder.
  • it could also be optionally corrected vision defects.
  • the above-mentioned plastic frame has a frame in which a smartphone can be inserted.
  • the smartphone is arranged so that one half of the screen of the smartphone lies in the viewing axis of each eye.
  • the field of view of the camera is divided by an optical structure in front of the smartphone camera.
  • the field of vision of a vertical half of the sensor pixels can be deflected by a mirror prism and aligned by a second mirror with an offset again parallel to the second vertical half.
  • optical components such as lenses, the structure can be kept compact. As a result, a measurement is possible which corresponds to the observation with mounted at two positions sensors.
  • a USB on the go (OTG) input device or Bluetooth input device can additionally be connected to a smartphone in such a way that it is possible to control the functionality without removing the holder, in particular a pair of glasses.
  • At least one image sensor in addition to the video recordings of the camera in the optical wavelength range, converts radiation in the non-optical wavelength range into signals which can be graphically displayed on the screen.
  • FIG. 1 An exemplary, particularly easy to implement embodiment of the subject invention is given below, without the subject of the invention being limited thereby.
  • An exemplary structure is shown schematically in FIG.
  • the electronic part of the protective goggles (1) realized for example by a smartphone, has a camera (2) with a field of view (4) and a display device (3).
  • the field of view of the camera is deflected by means of a beam splitter (5) in different directions.
  • the viewing direction is directed to the environment to be observed.
  • the beam path is shown by way of example for three beams (a, b, c).
  • the camera position of the left half of the sensor now appears to be at point 2a and that of the right in point 2b. If the right part of the construction is omitted, the area 2c is observed.
  • the image information of the two sensors is displayed on the screen (3).
  • optical components (7) so creates a spatial impression for the user (8).
  • the impression of optical depth can be made possible by displaying information from two spatial areas, thus giving a spatial impression. Furthermore, the simultaneous observation of the same spatial area by means of different sensors or sensor areas allows an increased dynamic range of the measurement setup after offsetting compared to single observation (see following section).
  • the device comprises a smartphone holder which is constructed similar to the holders known for 3D games (eg Durovis Dive, Google Cardboard).
  • 3D games eg Durovis Dive, Google Cardboard
  • Commercially available smartphones simultaneously take over the functions of the sensors, the display devices and the billing stage as a means of digital processing of the signals recorded by the sensors.
  • the holder is modified such that a smartphone of the Motorola Moto G type can be arranged in front of each eye.
  • a sliding lens with 21.0 D as an optical component in order to enable a distortion-free and clear vision despite a short distance to the eye and optionally even vision defects compensate.
  • the video recording of the respective smartphone is displayed on the associated smartphone screen and can be perceived by the viewer. This allows so on the one hand, an advantageous orientation of the viewer in the room with simultaneous laser protection for the eyes of the beholder.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Optics & Photonics (AREA)
  • Vascular Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)

Abstract

L'invention concerne un dispositif servant à protéger les yeux contre des rayonnements nocifs, comportant au moins un module de détection comprenant au moins un capteur qui peut enregistrer des informations d'image de l'environnement, au moins un appareil d'affichage sur lequel les informations d'image enregistrées par le capteur peuvent être affichées, ainsi qu'au moins un support qui permet au capteur et à l'appareil d'affichage d'être fixés sur la tête d'un utilisateur. Selon l'invention, le dispositif comprend au moins un autre capteur qui présente une sensibilité moindre que le premier capteur, et qui comprend au moins un moyen, qui permet le traitement numérique des informations d'image enregistrées par les deux capteurs et au moyen duquel les informations d'image des deux capteurs peuvent être combinées.
PCT/DE2016/000157 2015-04-30 2016-04-13 Dispositif de protection des yeux contre une lumière ou des sources de rayonnement nocives WO2016173574A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16722039.1A EP3289402A1 (fr) 2015-04-30 2016-04-13 Dispositif de protection des yeux contre une lumière ou des sources de rayonnement nocives

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015005514.3A DE102015005514A1 (de) 2015-04-30 2015-04-30 Vorrichtung zum Schutz der Augen vor schädlichen Licht- bzw. Strahlungsquellen
DE102015005514.3 2015-04-30

Publications (1)

Publication Number Publication Date
WO2016173574A1 true WO2016173574A1 (fr) 2016-11-03

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PCT/DE2016/000157 WO2016173574A1 (fr) 2015-04-30 2016-04-13 Dispositif de protection des yeux contre une lumière ou des sources de rayonnement nocives

Country Status (3)

Country Link
EP (1) EP3289402A1 (fr)
DE (1) DE102015005514A1 (fr)
WO (1) WO2016173574A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018028759A1 (fr) * 2016-08-12 2018-02-15 Universität Suttgart Lunettes de protection contre un rayon laser pour la protection complète, indépendante des longueurs d'onde, contre des rayons laser haute puissance

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5828793A (en) 1996-05-06 1998-10-27 Massachusetts Institute Of Technology Method and apparatus for producing digital images having extended dynamic ranges
WO2007140642A1 (fr) * 2006-06-06 2007-12-13 Eyerex Ag Dispositif de protection pour le visage et anti-éblouissement destiné à des personnes se trouvant dans des zones de travail comportant des rayonnements dangereux, nocifs ou parasites, en particulier à des soudeurs
DE102010010030A1 (de) * 2010-03-03 2011-09-08 Diehl Bgt Defence Gmbh & Co. Kg Vorrichtung zum Darstellen einer Umgebung
US20120249400A1 (en) * 2009-12-22 2012-10-04 Commissariat A L'energie Atomique Et Aux Energies Alternatives Signal processing eye protecting digital glasses
US8334899B1 (en) 2007-11-01 2012-12-18 Jefferson Science Associates, Llc Protective laser beam viewing device
DE202013011112U1 (de) * 2013-12-02 2015-03-04 Ape Angewandte Physik Und Elektronik Gmbh Laserschutzbrille und Messsystem

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004040148A1 (de) * 2004-08-19 2006-03-09 Technische Universität Braunschweig Carolo-Wilhelmina Lichtschutzbrille
WO2014056543A1 (fr) * 2012-10-12 2014-04-17 Fraunhofer Gesellschaft Zur Förderung Der Angew. Forschung E.V. Dispositif de protection anti-laser personnel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5828793A (en) 1996-05-06 1998-10-27 Massachusetts Institute Of Technology Method and apparatus for producing digital images having extended dynamic ranges
WO2007140642A1 (fr) * 2006-06-06 2007-12-13 Eyerex Ag Dispositif de protection pour le visage et anti-éblouissement destiné à des personnes se trouvant dans des zones de travail comportant des rayonnements dangereux, nocifs ou parasites, en particulier à des soudeurs
US8334899B1 (en) 2007-11-01 2012-12-18 Jefferson Science Associates, Llc Protective laser beam viewing device
US20120249400A1 (en) * 2009-12-22 2012-10-04 Commissariat A L'energie Atomique Et Aux Energies Alternatives Signal processing eye protecting digital glasses
DE102010010030A1 (de) * 2010-03-03 2011-09-08 Diehl Bgt Defence Gmbh & Co. Kg Vorrichtung zum Darstellen einer Umgebung
DE202013011112U1 (de) * 2013-12-02 2015-03-04 Ape Angewandte Physik Und Elektronik Gmbh Laserschutzbrille und Messsystem

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018028759A1 (fr) * 2016-08-12 2018-02-15 Universität Suttgart Lunettes de protection contre un rayon laser pour la protection complète, indépendante des longueurs d'onde, contre des rayons laser haute puissance

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EP3289402A1 (fr) 2018-03-07
DE102015005514A1 (de) 2016-11-03

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