WO2024251618A1 - Système comprenant un appareil de décapage et procédés associés pour décaper une partie d'un revêtement sur une fenêtre - Google Patents

Système comprenant un appareil de décapage et procédés associés pour décaper une partie d'un revêtement sur une fenêtre Download PDF

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Publication number
WO2024251618A1
WO2024251618A1 PCT/EP2024/065016 EP2024065016W WO2024251618A1 WO 2024251618 A1 WO2024251618 A1 WO 2024251618A1 EP 2024065016 W EP2024065016 W EP 2024065016W WO 2024251618 A1 WO2024251618 A1 WO 2024251618A1
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WO
WIPO (PCT)
Prior art keywords
decoating
window
positioning
laser device
designed
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.)
Pending
Application number
PCT/EP2024/065016
Other languages
English (en)
Inventor
Adrien Thomas
Anthony Koudlanski
Alexandre BOURNEUF
Loïc DEVOS
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.)
AGC Glass Europe SA
Original Assignee
AGC Glass Europe SA
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 AGC Glass Europe SA filed Critical AGC Glass Europe SA
Publication of WO2024251618A1 publication Critical patent/WO2024251618A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/0006—Working by laser beam, e.g. welding, cutting or boring taking account of the properties of the material involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
    • B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B23K26/1462—Nozzles; Features related to nozzles
    • B23K26/1464—Supply to, or discharge from, nozzles of media, e.g. gas, powder, wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/362—Laser etching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/40—Removing material taking account of the properties of the material involved
    • B23K26/402—Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3657—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having optical properties
    • C03C17/366—Low-emissivity or solar control coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/18—Sheet panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic materials other than metals or composite materials
    • B23K2103/54—Glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2218/00—Methods for coating glass
    • C03C2218/30—Aspects of methods for coating glass not covered above
    • C03C2218/32—After-treatment
    • C03C2218/328—Partly or completely removing a coating

Definitions

  • the present intention relates to a system comprising a decoating apparatus.
  • the system is designed to correctly position the decoating apparatus at a reference point.
  • the present invention further relates to a positioning method for ensuring the correct positioning the decoating apparatus at a reference point.
  • the present invention further relates to a decoating method to at least partially decoat a portion of a coating system present on a surface of a window mounted on a stationary object, for instance a building, or mounted on a mobile object, for instance a vehicle, a rapid transit system such as a train, tram or alike.
  • the invention concerns multiple domains where windows need to be at least partially decoated, meaning removing part of said coating system, to improve the electromagnetic transparency.
  • a standard single-layered window has poor thermal performances. This is why most windows are now built using two or more glass panels separated by a gas and/or polymer-based interlayer. This kind of windows are is called a multiglazed window.
  • a glass panel is low in reflectance for RF radiation.
  • Low in reflectance for RF radiation means that RF radiation are mostly transmitted through the material where high in reflectance for RF radiation means that RF radiation are mostly reflected on the surface of the material and/or absorbed by the material and the attenuation is at level of 20 decibels (dB) or more.
  • Low in reflectance means an attenuation at level of 10 decibels (dB) or less.
  • a coating system is typically applied on the interface of one or several glass panels of a multi-glazed window in order to further improve the multiglazed window properties.
  • This coating system can either improve the multi-glazed window insulation, reduce the amount of infrared and/or ultraviolet radiation entering the multi-glazed window and/or keep the sun’s heat out of a space wherein such multi-glazed window insulation is used.
  • this type of coating systems is generally metal-based and therefore acts as a Faraday cage, preventing electromagnetic waves such as radio waves, from entering or leaving the space and then is high in reflectance for RF radiation.
  • the coating system is high in reflectance meaning that the coating system is low in transmittance for RF radiation.
  • Low in transmittance means a transmission with an attenuation at level of 20 decibels (dB) or more. It is understood that the dielectric substrate is low in reflectance, meaning an attenuation at level of 10 decibels (dB) or less.
  • a window is mounted in situ meaning that the window is mounted on a stationary object, for instance a building, or mounted on a mobile object, for instance a vehicle, a rapid transit system such as a train, tram or alike to close an opening in the stationary or the mobile object, windows are removed from the opening to treat their surfaces.
  • a rapid transit system such as a train, tram or alike to close an opening in the stationary or the mobile object
  • a treatment can be a laser scribing or like, or preferably a decoating of a coating system.
  • a laser decoating system to remove at least one portion of the coating system.
  • the total surface to be decoated is typically between 1 and 3% of the total coating system surface, in order to both improve the transmission of radio waves through the multi-glazed-window without impairing the properties of said coating system.
  • the decoating system will remove segments from the coating system and the sum of the longest sub-segment of each segment is equal to n A /2 wherein n is a positive integer greater than zero and lambda ( A ) is the wavelength of the radio wave. It is necessary to have a wide band frequency selective surface in order to ensure the transmission of waves of different frequencies through the multi-glazed window, typically between 2GHz and lOOGhz.
  • the decoating system can be configured to remove a segment of a length greater than 400 mm and a width between 10 and 100 pm.
  • a small decoating portion is desired instead of a large decoating portion.
  • a small decoating portion has typically a length less than 400 mm.
  • a simple approach to solve this problem of RF energy reflection is to remove a portion of the coating system. This approach, however, reduces the solar control benefits offered by the multi-glazed window. Moreover, for multiglazed window located inside the building, the vehicle or the car, the decoated region would be unacceptably large. On top of that, the transition between the decoated portion and the coating itself is eye-visible and usually non-accepted by users.
  • Another solution has been to cut lines in the coating system to create a surface which is frequency selective: it has relatively high reflectivity/absorbance for solar energy but relatively low reflectivity/absorbance in the RF region of the electromagnetic spectrum.
  • the cutting may be performed by laser ablation and the spacing of the slits is chosen to provide selectivity at the desired frequency.
  • WO 2015/050762 describes an apparatus comprising a laser light source and a lens array configured to focus said laser light source on a coating system of a multi-glazed window.
  • Said apparatus is mounted on suction pads to secure said apparatus on said multi-glazed window.
  • Said apparatus also comprises at least two motors configured to move said laser along rails along the X and Y axis.
  • Said laser is capable of scribing a grid shape on said coating system to improve the electromagnetic transmission of said multi-glazed window.
  • said laser is always focused on a single point and cannot be adapted.
  • this apparatus is only built to have a focal point in a specific surface and thus such apparatus are built for a single type of double-glazed window being two glass panels separated by a spacer creating a space filled with gas, where the coating system is positioned on the internal interface of the window.
  • this apparatus it is not possible to use this apparatus to other types of windows where the glass thickness is different or where the coating system is applied on a different interface.
  • US6,559,411 describes an apparatus for laser scribing a tin oxide layer coated on a glass panel substrate.
  • a predetermined scribing is formed on the tin oxide layer by focusing a laser on said tin oxide layer and by displacing said glass panel substrate by a conveyor along the X or Y axis. Moreover, the position of the laser is adjusted in the Z direction during the laser scribing to maintain the focusing on said tin oxide layer.
  • Laser beam of prior art is always placed and fixed orthogonally to the surface to be decoated.
  • the decoating apparatus must be displace along said surface using motors and complex drive systems.
  • this apparatus can only be used in factories on glass panel that have just been manufactured. Hence, this apparatus cannot be used on a multi-glazed window of unknown structure, such as the number of glass panels, the number of lamination layers, the numbers of spacers, the number, nature and position of the coating system, ••• and that is already mounted on an object, for instance a building or a vehicle.
  • apparatus of the prior art cannot be aligned perpendicularly to the coating system to be treated causing a problem with the quality of the decoating.
  • apparatus of the prior art are fixed to the window (or around) via suction pads, thus the parallelism in not possible with tolerances of the pads and the whole apparatus on top of the possible misalignment of the window or the curvature of said window. Then, misalignment needs to be calculated for each window once the apparatus is installed taking time, handling issues, •••
  • apparatus of the prior art needs for each window to be reconfigured to define and decoat correctly inside a portion of said coating system. For each window, a positioning setting must be performed. This takes time and requires operators with a good knowledge of coating systems and computing skills. For example, apparatus of the prior art need to be attached to the window (or around) then a first step is to correctly position the structure around each window each time while ensuring the parallelism between the apparatus and the window that can only be a flatten window.
  • an ongoing technical issue is to obtain a decoating apparatus and process that can be used on multiple kind of multi-glazed windows, wherein the position and the thickness of the glass panels and the position of the at least one coating system are not known; and that are able to work when said multiglazed window is already mounted on an object while accessibility is limited by limiting operators handlings.
  • the present invention relates, in a first aspect, to a system.
  • Said system comprises a decoating apparatus.
  • the system is designed to correctly position the decoating apparatus at a reference point.
  • the decoating apparatus is designed to decoat a portion of a coating system present on a surface of a window.
  • the decoating apparatus further comprises an articulated arm and a laser device.
  • the laser device comprises an optical laser unit to generate a laser beam
  • the laser device is mounted on an end of the articulated arm.
  • the articulated arm is designed to displace and to orientate the laser device substantially parallel to the surface of the window, especially the laser beam substantially normal to the surface of the window.
  • the frequency of the laser beam equals to or is higher than substantially 20kHz.
  • the solution as defined in the first aspect of the present invention is based on the laser device comprises a contact element extending from the laser device.
  • the solution as defined in the first aspect of the present invention is also based on the system further comprises a positioning apparatus comprising a first abutment means, the positioning apparatus being designed to receive a part of the laser device into abutment against the first abutment means.
  • the present invention also relates, in a second aspect, to a positioning method for ensuring the correct positioning the decoating apparatus at a reference point.
  • the positioning method comprises following steps:
  • the present invention also relates, in a third aspect, to a decoating method to at least partially decoat a portion of a coating system present on a surface of a window mounted on a stationary object, for instance a building, or mounted on a mobile object, for instance a vehicle, a rapid transit system such as a train, tram or alike, with a system according to the first aspect of the present invention.
  • the decoating method comprises, for ensuring the correct positioning the decoating apparatus at a reference point, following steps:
  • the present invention also relates, in a fourth aspect, to a multi portions decoating method at least partially decoat a first portion and a second portion of a coating system present on a surface of a window mounted on a stationary object, for instance a building, or mounted on a mobile object, for instance a vehicle, a rapid transit system such as a train, tram or alike, with a system according to the first aspect of the present invention.
  • the positioning apparatus comprises a second abutment means.
  • the first abutment means is designed to correct positioning the decoating apparatus at a reference point of the first portion of the window and the second abutment means is designed to correct positioning the decoating apparatus at a reference point of the second portion of the window.
  • the multi portions method comprises following ordered steps :
  • the present invention also relates, in a fifth aspect, to a multi windows decoating method to decoat at least a first and a second windows mounted on a stationary object, for instance a building, or mounted on a mobile object, for instance a vehicle, a rapid transit system such as a train, tram or alike.
  • the multi windows decoating method comprises following steps:
  • the present invention also relates, in a sixth aspect, to an use of positioning apparatus comprised in a decoating apparatus and a contact element;
  • the positioning apparatus comprises a first abutment means to correctly position the decoating apparatus at a reference point to correctly decoat a portion of a coating system present on a surface of a window (2);
  • the decoating apparatus further comprises an articulated arm (3) and a laser device (4), comprising an optical laser unit to generate a laser beam, mounted on an end of the articulated arm; the articulated arm being designed to displace and orientate the laser device substantially parallel to the surface of the window;
  • the laser device comprises the contact element extending from the laser device;
  • the positioning apparatus being designed to receive the contact element into abutment against the first abutment means.
  • the present invention permits in these different aspects to decoat a large scope of type of windows such as curved, strong geometric and dimensional disparities between windows in a same row, strong geometric and dimensional disparities of surfaces while be able to decoat in situ, where the object comprising said window to treat is positioned.
  • the present invention permits also to decoat at any location without moving the mobile object in a specific shed to treat windows to reduce cost, immobilisation time, handling, logistics, •••
  • the present invention further permits to easily decoat windows even if windows not directly accessible meaning that even if the access to the window itself is very limited due to the presence of elements blocking access or preventing access to the surface itself, the present invention allows to decoat such windows.
  • the decoating apparatus is able to decoat without being fixed or attached to the window or round the window.
  • the present invention further permits to decoat windows in situ without the need to remove window from the object to decoat in a factory reducing the handling, the risk of breakage, the logistics, •••
  • FIG. 1 is a schematic view of a system according to the present invention.
  • FIG. 2 is a schematic view of a positioning apparatus position in front of a window according to the invention.
  • FIG. 3 is a schematic view of a zoom of FIG. 2.
  • FIG. 4, FIG. 5, FIG. 6 and FIG. 7 represents a positioning apparatus according some embodiments of the present invention.
  • FIG. 8 illustrates a window with several section and a positioning apparatus comprising a first abutment means and a second abutment means.
  • FIG. 9 illustrates a schematic 3D view of the positioning apparatus of FIG. 8.
  • FIG. 10 represent a decoating apparatus according the invention positioned to decoat in situ a window already mounted on a rapid transit system from the outside of the rapid transit system.
  • FIG. 11 represent a decoating apparatus according the invention positioned to decoat in situ a window already mounted on a rapid transit system from the inside of the rapid transit system.
  • FIG. 12 illustrates a patchwork of decoated sub-frequency selective surfaces.
  • FIG. 13 illustrates a positioning method according to the invention.
  • FIG. 14 illustrates a decoating method according to the invention.
  • FIG. 15 illustrates a multi portions decoating method according to the invention.
  • FIG. 16 illustrates a multi windows decoating method according to the invention.
  • FIG. 17 illustrates a multi windows - multi portions decoating method according to the invention.
  • constituent element e.g., a first constituent element
  • another constituent element e.g., a second constituent element
  • the constituent element may be directly connected to the another constituent element or may be connected to the another constituent element through another constituent element (e.g., a third constituent element).
  • the following description relates to a decoating apparatus but it’s understood that the invention may be applicable to any laser apparatus to treat a surface of a window mounted in situ.
  • the laser apparatus is a decoating apparatus and the laser device is designed to decoat at least partially a portion of a coating system presents on a surface of the window.
  • FIG. 1 illustrates a system 100 designed to correctly position the decoating apparatus at a reference point.
  • the system comprises a positioning apparatus 9 and a decoating apparatus.
  • a decoating apparatus 1 according to the invention is shown and especially a part of an articulated arm 3 and a laser device 5 in front of a window 2 comprising two glass sheets and a coating system 23.
  • the window has two external surfaces 21, each of the external surface is facing outside of the window.
  • the decoating apparatus can comprises a body on which the articulated arm is fixed. Said body can comprise an calculation unit to calculate and to control movements of the articulated arm, a generator unit to generate a laser light and to control the laser device and a management unit to manage the calculation unit and the generator unit.
  • the decoating apparatus can further comprise a control unit to interact with the articulating arm and the laser device to be able to move the laser device in space while the laser beam is decoating.
  • the control unit can drive the generator unit to adapt the power, the frequency of the laser light.
  • the control unit can also drive the calculation unit to articulate the articulated arm to move and orientate the laser device to the desired position.
  • the control unit can also drive the optical laser unit to focalise the laser beam and/or to adapt the scanning surface of the laser beam.
  • the decoating apparatus further comprises at least a battery and an inverter to avoid to turn off and restart the decoating apparatus during the displacement between two windows.
  • the body can also comprises a power supply to use electricity from the grid. orticulated arm>
  • the articulated arm is designed to displace and orientate the laser device while avoiding to fix a part of the decoating apparatus on the window or on the frame, wall,--- to avoid risks of not be correctly attached and fall or risks to scratch the surface.
  • the articulated arm delocalises the laser device from the body of the decoating device.
  • the articulated arm comprises at least an articulation to displace the laser device in the space.
  • the articulated arm can comprises several rotation components such as wrist, elbow, shoulder or alike acting as an articulation.
  • Each of the rotation component can be directly fixed to another rotation component or can be fixed using a rigid bar.
  • the rigid bar can have different lengths depending on the desire application.
  • each of the rotation components is driven and controlled by the calculation unit.
  • the articulated arm is designed as a type of mechanical arm that is used for positioning precisely the laser device according to the window shape and geometry and the surface to decoat.
  • the arm may be the sum total of the mechanism allowing either rotational motion or translational displacement of the laser device.
  • These movements are usually programmed, but can be performed by remotely controlling the articulated arm (for instance via a remote, or computer, or tablet), or by piloting the articulated arm via the control panel of the equipment, or by manually moving the laser equipment along the desired movement to let the control unit of the articulated arm acquire this movement, to then repeat it.
  • the articulated arm can allow the laser device to be moved along the 3 axis (cartesian coordinates: X, Y, Z: 1 vertical axis and 2 horizontal one, perpendicular to each other) or rotate around these 3 axis, allowing all 6 degrees of movements, such as all translation and rotation possible in or around each direction, so the amount of articulations of the articulated arm have to be sufficient to allow such movements.
  • Amount of articulations is preferably more than 2, more preferably around 6.
  • the decoating apparatus comprises a laser device 5.
  • the laser device is mounted on an end of the articulated arm.
  • the decoating apparatus comprises a body
  • the articulated arm the laser device is mounted on the end opposite to the end fixed to the body. The articulated arm allows the laser device to be moved and oriented in space to decoat correctly the coating system to be decoated.
  • the length of the laser device of about 180 mm to be able to facilitate the positioning and the movement of the laser device by the articulated arm.
  • the width of the laser device of about 180 mm to be able to facilitate the positioning and the movement of the laser device by the articulated arm.
  • the height of the laser device of about 180 mm to be able to facilitate the positioning and the movement of the laser device by the articulated arm.
  • the dimensions of the laser device can be different such as 100 x 100 x 100 mm depending on the elements comprised inside the laser device and the desired application.
  • the dimensions of the laser device can be different such as 200 x 200 x 200 mm depending on the elements comprised inside the laser device and the desired application.
  • the weight of the laser device is preferably equal to or smaller than about 5 kg to limit the vibration of the articulated arm while avoiding to over dimension said articulated arm while limiting the destabilization risks and jerky movements.
  • the laser device 5 comprises an optical laser unit to generate a laser beam 51 from the laser light generated by the generator unit.
  • the laser light is transmitted from the generator unit, disposed in the body to the optical laser unit of the laser device by a cable 405.
  • the laser beam is focalised at a focus point on the coating system to decoat when the decoating apparatus is ready to decoat.
  • the laser beam has a specific direction.
  • said decoating device can comprise a lens array configured to focus said laser beam at a focus distance.
  • the articulated arm allows the laser beam to be substantially normal to the surface of the window at least during the decoating step.
  • the term “normal to the surface” is measured when the laser beam is in the zero position.
  • the zero position 590 is in front of the laser beam when the laser beam is not orientable.
  • the zero position is the (0, 0) point of the scanning area in case of the laser beam can be oriented with an orientation means.
  • the scanning area 59 is defined in positive and negative value centred in the zero position as illustrated in FIG. 1.
  • the articulated arm is able to displace and to orientate the laser device to keep this specific direction of the laser beam.
  • the laser head can be orientate in a XI, Yl, Zl axis, especially the laser beam substantially normal at the position zero 590 to the surface of the window.
  • the laser device can further comprise an orientation means configured to control the direction of said laser beam 51.
  • the laser beam scans the portion to be decoated thanks to this orientation means.
  • said orientation means may comprise at least a rotatable mirror or a mirror using a galvanometer based motor, to provide a light and fast orientation of the laser beam and to control and manage such orientation.
  • the laser beam generated by the generator unit goes through an optical fibre from the body to the laser device.
  • the laser beam is transformed and shot by the laser device in direction of the surface to decoat.
  • the transformation of the laser beam can be based on reflections by at least one mirror (or more) to go into a Control Unit Adapter (CUA), from where the laser beam can be then emitted toward the glass panel with correct size and shape, and angle and thickness, to remove the coating according to the predetermined pattern.
  • CUA Control Unit Adapter
  • the invention permits to very fast remove a large portion of a coating system, for instance to improve the electromagnetic transmission of a window.
  • the laser apparatus comprises a F-theta lens to flatten the focus point on a surface.
  • the laser apparatus is a pulse laser apparatus and the frequency of the laser beam equals to or is higher than substantially 20kHz.
  • the laser device in order to keep the focal point on the coating system, can comprises a focal device designed to measure the distance between the coating system and the laser device. Measurements are transmitted to the management unit that can drive the laser device and/or the calculation unit and/or a control unit to adapt the focal point on the coating system.
  • the laser device can comprise a housing to hide and to protect components.
  • the housing comprises an opening in which the laser beam can go out of the laser device.
  • the laser device can further comprise mirror or set of mirrors to aim and redirect laser beam in the correct direction
  • the laser device can further comprise an inclinometer to aim the laser device and the laser beam in the correct direction.
  • the laser device can further comprise c a camera to control the decoating pattern and a light to provide good luminosity to camera.
  • the decoating apparatus can further comprise a protective panel to protect peoples from laser reflected from glass. ⁇ contact element>
  • the laser device 5 comprises a contact element 52.
  • the contact element extending from the laser device.
  • the contact element is designed to be positioned between the laser device 5 and a window 2 to treat as illustrated in FIG. 1.
  • the contact element can comprise an external surface 523 having a radius of curvature Re.
  • the external surface is concave meaning an inwardly rounded shape.
  • the radius of curvature, Re, of the external surface of the contact element is smaller than or equal to the radius of curvature, Rw, of the external surface of the window in front of the portion (Re ⁇ Rw).
  • the contact element can comprise a fixing member.
  • the fixing member is designed to be fixed on the laser device and around the opening in which the laser beam is going out of the laser device.
  • the contact element can comprises at least an spacer 522 to separate the external surface 523 of the contact element with the laser device from a defined distance from the external surface of the window.
  • the contact element can comprises at least a contact member 524.
  • the contact member defines the shape of the external surface 523.
  • the external member is made of a soften material than the material of the fixing member.
  • the soften material is designed to prevent scratch or other damage that physical contact of the device could create on the window to be decoated.
  • the material could be rubber, resin, Teflon, Ertalon, or any other material suitable to prevent scratch or other damage that physical contact could create.
  • the contact element comprises an opening through which the laser beam can pass. More preferably, the opening is wider than the laser beam scanning area.
  • the external member can have many shape such as an external member has a generic U-shape or generic donuts shape or any hollow polygonal shape, such as hollow rectangular shape. The shape can also be made of two bars or pins for example.
  • the contact element can comprises at least three spacers.
  • the spacer permits to define a distance between the laser device and the external surface while giving a rigidity to the contact element.
  • the fixing member and the at least one space are made of a rigid material.
  • the rigid material would preferably be metal based material, for instance aluminium to limit the total weight of the device or plastic based material such as PC or ABS or PA or any other material suitable to keep the physical stability of a fixing member.
  • the contact element can have a fastening means to removable fasten the external member to the contact element.
  • the system further comprises a positioning apparatus 9 as illustrated in FIG. 2. At least a part of the position apparatus is position in front of the window.
  • the positioning apparatus comprises a first abutment means.
  • the positioning apparatus being designed to receive the contact element into abutment against the first abutment means.
  • the first abutment means is designed to receive a part of the contact element into abutment against.
  • the positioning apparatus allows the decoating apparatus especially the laser device to be correctly position at a reference point 242.
  • the reference point 242 corresponds to the position of the laser beam.
  • this reference point is perpendicular to and in front of the laser device.
  • the reference point can correspond to the centre point of the laser beam scanning area 241 on the coating system to be decoated, this area can also be called the reference area.
  • the first abutment means can comprise a first 92 rigid member and a second 93 rigid member.
  • Each of the first and second rigid members are designed to receive the contact element into abutment against.
  • the contact member is positioned in abutment against the first rigid member and the second rigid member.
  • dimensions are smaller than 400mmx400mm, more preferably around about 150x150mm.
  • the height of first rigid member 92 and width of second rigid member 93 are creating a generic rectangular frame which dimensions are preferably the external dimensions of the contact element 52, preferably smaller than 200x200mm, more preferably around about 120x100mm.
  • the first abutment means has a shape corresponding to the shape of the part of the contact element that can be positioned in abutment.
  • the term “rigid” means that the first and the second members cannot be substantially forced out of shape.
  • the first and the second members can be elongated rectangular generic shape to simplify the manufacture of the positioning means.
  • the window can comprise more than one portion to decoat.
  • Several positioning apparatus can be used, one positioning apparatus for a portion.
  • the positioning apparatus can also comprise a second abutment means 97.
  • the first abutment means 96 is designed to correct positioning the decoating apparatus at a first reference point of the window to be decoated and the second abutment means 97 is designed to correct positioning the decoating apparatus at a second reference point of the window to be decoated as illustrated in FIG. 6 and FIG. 7.
  • the second abutment means can have the same characteristics as described for the first abutment means.
  • FIG. 8 illustrated a window comprising several sections 231, 232, 233 and at least one section 232 comprises a non-infinite radius of curvature Rw. A portion on the section 231 and a portion of the section 232 need to be treated.
  • the positioning apparatus can also comprise a first abutment means 96 to correctly position the laser device on the reference point of the first portion of the section 233 and a second abutment means 97 to correctly position the laser device on the reference point of the first portion of the section 232.
  • the surface of the positioned apparatus in contact with the is designed to following the window shape.
  • Said surface can be flat, or curved for curved glass as illustrated in FIG. 9
  • the positioning apparatus can be comprises a attachment means 91 to detachably attach the positioning apparatus at a defined position especially the attachment means is designed to removable attach the first abutment means at the desired position and in front of the window to be at least partially decoated.
  • the attachment means can comprises a suction pad or any other means to detachably attach a positioning means at a defined position.
  • the attachment means can depend on the material on which it will be attach.
  • the abutment means is following the window shape.
  • the attachment means allows quick mounting and demounting on the window or around the window such as a frame, a wall, a carbody or a coachwork.
  • the attachment means when positioning apparatus is fixed against the window or whatever flat surface, as glass surface of another window or metallic coachwork of a vehicle, the attachment means could be a suction cup, either manual or electric one allowing to create suction into the cup by creating localized void thanks to an electric pump.
  • the attachment means could also be adhesive or magnetic in case of a ferromagnetic metallic coachwork, or mechanic system such as a vise-grips.
  • the attachment means can comprises one or more attachment element such a as suction means to correctly position the positioning means at the desired position while ensuring that this desired position does not change even in the event of an impact.
  • the present invention also related to a positioning method (300).
  • the positioning method allows the decoating apparatus and specifically the laser device to be correctly positioned at a reference point.
  • Said positioning method comprises, for ensuring the correct positioning the decoating apparatus at a reference point a step Al of installing 301 the positioning apparatus allowing to position the first abutment means in front of the window.
  • Said step Al positions the positioning apparatus in a way that when the contact element is in abutment against the abutment means the laser beam is correctly positioned at the reference point.
  • the positioning method comprises a step A2, after the step Al, of positioning 302 the contact element into abutment against the first abutment means.
  • This positioning method permits to be sure that the laser device and the laser beam at in correct and desired position directly and with less handling.
  • the laser device is directly positioned to decoat in the portion.
  • the present invention also related to a decoating method 400 to at least partially decoat a portion of a coating system present on a surface of a window mounted on a stationary object, for instance a building, or mounted on a mobile object, for instance a vehicle, a rapid transit system such as a train, tram or alike, with a system 10.
  • the decoating method comprises, for ensuring the correct positioning the decoating apparatus at a reference point, a step A of positioning (300) the decoating apparatus with the positioning method of FIG. 13.
  • decoating method comprises a step of decoating 401 a frequency selective surface inside the portion of the coating system.
  • the term “decoat” means to modify the continuity of the coating system by removing or by melting for example.
  • the decoating can be a partial decoating especially to create a frequency selective surface.
  • the coating system 23 generally uses a metal-based layer and infrared light is highly refracted by this type of layer. Such coating system is typically used to achieve a low-energy multi-glazed window.
  • the coating system can be a heatable coating applied on the multi-glazed window to add a defrosting and/or a demisting function for example and/or to reduce the accumulation of heat in the interior of a building or vehicle or to keep the heat inside during cold periods for example.
  • coating system are thin and mainly transparent to eyes.
  • the coating system is covering most of the surface of the multiglazed window 2.
  • the coating system can be made of layers of different materials and at least one of these layers is electrically conductive.
  • the coating system can be electrically conductive over the majority of one major surface of the multi-glazed window. This can causes issues such as heated point if the portion to be decoating is not well designed.
  • a suitable coating system is for example, a conductive film.
  • a suitable conductive film is for example, a laminated film obtained by sequentially laminating a transparent dielectric, a metal film, and a transparent dielectric, ITO, fluorine-added tin oxide (FTO), or the like.
  • a suitable metal film can be , for example, a film containing as a main component at least one selected from the group consisting of Ag, Au, Cu, and Al.
  • the coating system may comprise a metal based low emissive coating system.
  • Such coating systems typically are a system of thin layers comprising one or more, for example two, three or four, functional layers based on an infrared radiation reflecting material and at least two dielectric coatings, wherein each functional layer is surrounded by dielectric coatings.
  • the coating system of the present invention may in particular have an emissivity of at least 0.010.
  • the functional layers are generally layers of silver with a thickness of some nanometers, mostly about 5 to 20nm.
  • the dielectric layers are generally transparent and made from one or more layers of metal oxides and/or nitrides.
  • each functional layer is deposited, for example, by means of vacuum deposition techniques such as magnetic field-assisted cathodic sputtering, more commonly referred to as “magnetron sputtering".
  • each functional layer may be protected by barrier layers or improved by deposition on a wetting layer.
  • the term “against” means that at least a part of the surface is in contact with the external surface of the window and preferably at least borders.
  • the decoating method can comprises a step of placing the decoating apparatus to a first working position.
  • working position means a position in which the decoating apparatus is able to decoat the portion of the coating system while the laser device is substantially perpendicular to the tangent at the focal point of the coating system to decoat. That means that the decoating apparatus can stay at a position and only the laser device is moved to a new position.
  • the laser apparatus can be oriented to keep the parallelism in case of decoating over a bent section thanks to the articulation of the articulated arm.
  • a window can comprises several sections with different radius of curvature.
  • the radius of curvature is measured at the surface of the glass panel where the coating system is disposed on.
  • a flat portion has an infinite radius of curvature.
  • the decoating apparatus according to the invention is able to decoat using the decoating method a window having different bent sections at once or executing the decoating step at each sections.
  • the decoated frequency selective surface comprises decoated segments creating zones where the coating system is still present. Decoated segments can have a width between 15 pm and 150 pm, preferably between 30 pm and 70 pm, and more preferably substantially 50 pm, forming specific designs, such as lines, polygons, hashtag-like, a grid or a like. [00156] Decoated designs can depend on wanted visual aspect and / or desired wavelength transparency for example.
  • At least one coating system is present on one interface, meaning one surface of the window 2.
  • the coating system is on one of the internal surfaces of the window, surfaces that are not facing the outside of the window.
  • the decoating apparatus decoats a portion on the closest coating system and then decoats the second one.
  • the focus point is adapted to be on the correct coating system.
  • the decoating apparatus decoats a portion on the farthest coating system and then decoats the closest one.
  • the needed power to decoat the farthest one is higher than the needed power to decoat the closest one and risks to degrade the decoated shape of the portion on the closest one if this one is done before the farthest coating.
  • the decoating apparatus of the invention do not necessary be adapted to the dimension of the portion to be decoated and the same decoating apparatus can be used for a large type of windows and environments.
  • the position of the decoated portion 25 on the multi-glazed window depends on the application.
  • the portion of the coating system to be decoated represents at least 50% of the surface of the coating system, more preferably, the portion of the coating system to be decoated represents at least 70% of the surface of the coating system and even more preferably, the portion of the coating system to be decoated represents at least 80% of the surface of the coating system. It is understood that the portion of the coating system to be decoated and the decoated portion represent a surface of the coating system and not the decoating itself.
  • the present invention permits to decoat a small amount of coating, less than 3%, to improve the transmission of radio waves on a large or not portion of said coating.
  • the portion 24 of the coating system to be decoated can be larger than the size of the scanning area.
  • the reference point and the reference area correspond to a corner of the portion 24.
  • the laser device is moving to decoat a portion larger than the scanning area.
  • the frequency selective surface FSS1 can be composed of at least a patchwork of sub-frequency selective surfaces FSS11, FSS12, FSS13, FSS14, FSS21, FSS22, FSS23, FSS24, FSS31, FSS32, FSS33, FSS34 as illustrated in FIG. 12, Therefore, when laser processing is performed on a region larger than a region that can be processed in one process, a pattern formed in a predetermined size that can be processed in one process is formed a plurality of times and continuously arranged. As a result, a continuous pattern can be formed in the entire desired region by connecting decoated tile-like portions like a so-called patchwork.
  • the reference point and the reference area can be any of the sub-frequency selective surfaces.
  • the reference point and the reference area is one of the sub-frequency selective surfaces positioned at a corner the portion FSS11, FSS14, FSS31 or FSS34.
  • the decoating step 420 can comprises several decoating substeps 421, 422, 423, 424.
  • Each of the decoating substeps can be performed by scanning a zone, scanning either via an optical or ultrasonic means for instance, to define the correct shape to the surface to decoat with enough precision, with the laser beam to decoat inside said zone meaning that the orientation of the laser beam is adapted inside said zone.
  • the laser device is moving with the articulated arm while the laser beam is scanning to increase the speed of decoating.
  • the laser device can comprises a confocal or any other element designed to scan the surface in front of where the laser beam will be shot, to adjust laser beam position accordingly.
  • the frequency selective surface is a grid made of decoated segments to form a decoated grid.
  • the grid can be made of a patchwork of subgrids each of the subgrids are connected edge-to-edge.
  • the decoated grids placed in a patchwork manner and connected edge-to-edge allow to create a larger frequency selective surface especially when the decoated grids are created by a decoating apparatus using a galvo head to orientate the laser designed to decoat the coating system.
  • Lml, Lm2, Lm3, Lm4, W3n, W2n, Win of the sub frequency selective surfaces can depends on the size of the maximum surface that the decoating apparatus can decoat at once and also can depends on the radius of curvature around the focal point and the laser parameter such as the scan field, Lmax, and the zone Rayleigh, Za.
  • the laser beam 55 is focalised at a focus point 25 on the coating system 23.
  • the laser device is moving while the laser beam 55 is focalised on the coating system to decoat the coating system.
  • the laser beam In order to correctly decoat a coating system, the laser beam must be precisely focused onto the targeted coating system. Therefore, the position of the coating system must be known with a precision at least three times smaller than the depth of field of the decoating device.
  • the depth of field corresponds to the distance around the focal point of a focused laser beam where the laser beam diameter is considered constant. This distance depends greatly of the laser beam characteristics and the optics used for focusing said laser beam. Typically, the depth of field is around 0.5 mm, which means that the precision on the focus position of the decoating device should be around 0.1-0.2 mm.
  • a cofoncal unit can be added to the laser device designed to calculate the position of the coating system.
  • the decoating method is performed in a factory meaning before to install the treated window.
  • the decoating method is performed in situ with the decoating apparatus.
  • a rapid transit systemlOO comprises several windows 201, 202, 203, 204 in a same row or in several rows as illustrated in FIG. 10.
  • the decoating method according to the invention permits to perform the decoating method from the inside of the stationary or the mobile object as illustrated in FIG. 10.
  • the decoating apparatus is position on the floor or on a platform to be correctly positioned.
  • the displacing step can be made by the platform once the decoating apparatus is positioned on the platform.
  • the decoating method according to the invention permits to perform the decoating method from the inside of the stationary or the mobile object as illustrated in FIG. 11.
  • the decoating apparatus is moved inside the rapid transit system and positioned near a window to be treated.
  • Windows 211-215 illustrated in FIG. 10 can corresponds to window of FIG. 8 with at least a curved section 232.
  • the present invention also related to a multi portions decoating method 500 as illustrated in FIG. 15.
  • Said multi portions decoating method 500 permits at least partially decoat a first portion and a second portion of a coating system present on a surface of a window mounted on a stationary object, for instance a building, or mounted on a mobile object, for instance a vehicle, a rapid transit system such as a train, tram or alike, with a system according to any preceding claims, wherein the positioning apparatus comprises a second abutment means; the first abutment means is designed to correct positioning the decoating apparatus at a reference point of the first portion 410 of the window and the second abutment means is designed to correct positioning the decoating apparatus at a reference point of the second portion 420 of the window.
  • the multi portions decoating method comprises following ordered steps : decoating 301 a frequency selective surface inside the first portion with the decoating method, and then decoating 301 a frequency selective surface inside the second portion with the decoating method.
  • Said multi portions decoating method permits to rapidly correctly position the laser device at the reference point for each portion to be decoated.
  • the contact element is positioned for a first portion then the decoating step is performed inside this portion. Then the contact element is positioned for the second portion and the decoating step is performed inside this second portion.
  • the number of portions per window is not limited.
  • the present invention also relates to a multi windows decoating method 600, as illustrated in FIG. 16, to decoat at least a first and a second windows mounted on a stationary object, for instance a building, or mounted on a mobile object, for instance a vehicle, a rapid transit system such as a train, tram or alike.
  • the multi windows decoating method comprises following steps decoating a frequency selective surface inside the portion of the first window with the decoating method and then decoating a frequency selective surface inside the portion of the second window with the decoating method.
  • the multi window decoating method is not limited to two windows, a decoating step is performed for each window to decoat. These steps are reproduced as many times as the number of windows to treat.
  • the decoating method can comprises a step of placing 402 a decoating apparatus near first window before placing the laser device with the positioning method.
  • the decoating apparatus is placed in front of the window to be treated.
  • the term “near” means that the decoating apparatus is not fixed to the windows, the frame or the body of the object on which the window is fixed.
  • the body can be around 70cm from the window to be decoated, preferably placed substantially normal to the window, and with the articulated arm aligned substantially along the main length of the body, or parallelly to the window, with the articulated arm aligned substantially perpendicular to the main body length.
  • the center of the articulated arm which corresponds to the first articulation between the body and the articulated arm, is placed aligned with the centre of the window, the centre along vertical axis, and along the length axis of the window).
  • the vertical positioning of the body from the window could be ensured by lifting the body with a lifting equipment, for example a lifting platform, scissor lift platform, “cherry picker” or so on.
  • a lifting equipment for example a lifting platform, scissor lift platform, “cherry picker” or so on.
  • the articulated arm displaces and orientates the laser device along the portion and keeps the laser beam substantially normal to the surface or to the scanning zone.
  • the multi windows decoating method can comprises a step of moving the decoating apparatus to another location to decoat another window or another row of windows or to be stored.
  • the decoating apparatus can decoat a first row of windows 201, 202, 203, 204, 205 and then (or the contrary) decoat a second row of windows 211, 212, 213, 214, 215.
  • the multi window decoating method can comprise a step before the step to assemble 701 and/or to provide the decoating apparatus inside or outside the object.
  • the multi window decoating method can also comprise a step after all decoating steps to disassemble 702 and/or to retrieve from the object the decoating apparatus.
  • the invention also relates to the use a contact element of a laser device comprised in a decoating apparatus according to the first aspect to correctly position the laser device substantially parallel to a window to be decoated while ensuring the uniform quality of the decoating over a portion of a coating system present on a surface of the window.
  • the decoating apparatus of the invention can be used to improve the electromagnetic properties of a multi-glazed window already mounted on a stationary object, for instance building, or on a mobile object, for instance a vehicle, a train or alike without dependency to the configuration of the object.
  • the multi portions decoating method and the multi windows decoating method can be mixed. That means that for a stationary object, for instance a building, or mounted on a mobile object, for instance a vehicle, a rapid transit system such as a train, tram or alike having several window to treat, the multi window decoating method is performed and for each window portion can be decoated. Thus, the multi portions decoating method is repeated as many time as needed, then the decoating apparatus is positioned in front a the next window.
  • the present invention can decoat a window without manipulations from an operator except maybe some standard manipulations such as the on-off and the first positioning.
  • the laser device and the focal point of the laser beam can move following the profile/geometry of the coating system, whether the window is straight, curved, tilted...

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Abstract

La présente invention divulgue un système comprenant un appareil de décapage (10) et conçu pour positionner correctement l'appareil de décapage (10) au niveau d'un point de référence. L'appareil de décapage (10) est conçu pour décaper une partie d'un système de revêtement (23) présent sur une surface d'une fenêtre (2).L'appareil de décapage (10) comprend en outre un bras articulé (3) et un dispositif laser (5), comprenant une unité laser optique pour générer un faisceau laser (55), monté sur une extrémité du bras articulé (3). Le bras articulé (3) est conçu pour déplacer et orienter le dispositif laser (5) sensiblement parallèlement à la surface de la fenêtre (2). Le dispositif laser (5) comprend un élément de contact (52) s'étendant à partir du dispositif laser (55). Le système comprend en outre un appareil de positionnement (9) comprenant un premier moyen de butée, l'appareil de positionnement (9) étant conçu pour recevoir l'élément de contact (52) en butée contre le premier moyen de butée. La présente invention concerne également des procédés de décapage et une utilisation.
PCT/EP2024/065016 2023-06-08 2024-05-31 Système comprenant un appareil de décapage et procédés associés pour décaper une partie d'un revêtement sur une fenêtre Pending WO2024251618A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23178250.9 2023-06-08
EP23178250 2023-06-08

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WO2024251618A1 true WO2024251618A1 (fr) 2024-12-12

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6559411B2 (en) 2001-08-10 2003-05-06 First Solar, Llc Method and apparatus for laser scribing glass sheet substrate coatings
WO2015050762A1 (fr) 2013-10-02 2015-04-09 Eritek, Inc. Procédé et appareil d'amélioration de la transmission des signaux radiofréquence au travers de verre revêtu à faible émissivité
CN109249140A (zh) * 2018-11-27 2019-01-22 杜拉维特（中国）洁具有限公司 一种激光打标方法
DE102019129503A1 (de) * 2019-10-31 2021-05-06 Oswald Elektromotoren Gmbh Handgeführtes Laserbearbeitungsgerät zur Bearbeitung eines Werkstücks und Trichter für ein handgeführtes Laserbearbeitungsgerät
WO2021239597A1 (fr) * 2020-05-26 2021-12-02 Agc Glass Europe Appareil et procédé d'élimination d'au moins une partie d'au moins un système de revêtement présent dans une fenêtre à vitres multiples montée sur un objet fixe ou mobile
WO2022112521A2 (fr) * 2020-11-30 2022-06-02 Agc Glass Europe Appareil laser comprenant un moyen de fermeture et procédé et utilisation associés
US20220184736A1 (en) * 2020-12-10 2022-06-16 The Boeing Company Laser system and methods for containing a laser beam and manufacturing a laser containment apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6559411B2 (en) 2001-08-10 2003-05-06 First Solar, Llc Method and apparatus for laser scribing glass sheet substrate coatings
WO2015050762A1 (fr) 2013-10-02 2015-04-09 Eritek, Inc. Procédé et appareil d'amélioration de la transmission des signaux radiofréquence au travers de verre revêtu à faible émissivité
CN109249140A (zh) * 2018-11-27 2019-01-22 杜拉维特（中国）洁具有限公司 一种激光打标方法
DE102019129503A1 (de) * 2019-10-31 2021-05-06 Oswald Elektromotoren Gmbh Handgeführtes Laserbearbeitungsgerät zur Bearbeitung eines Werkstücks und Trichter für ein handgeführtes Laserbearbeitungsgerät
WO2021239597A1 (fr) * 2020-05-26 2021-12-02 Agc Glass Europe Appareil et procédé d'élimination d'au moins une partie d'au moins un système de revêtement présent dans une fenêtre à vitres multiples montée sur un objet fixe ou mobile
WO2022112521A2 (fr) * 2020-11-30 2022-06-02 Agc Glass Europe Appareil laser comprenant un moyen de fermeture et procédé et utilisation associés
US20220184736A1 (en) * 2020-12-10 2022-06-16 The Boeing Company Laser system and methods for containing a laser beam and manufacturing a laser containment apparatus

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