• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The glass sheet (2) comprises a symbol (8) marked inside the glass, the symbol forming a code. The symbol is marked in at least two dimensions, including the thickness of the glass sheet, with portions of the symbol being marked at different depths in the thickness of the glass sheet.
    公开号:FR3017483A1
    申请号:FR1451028
    申请日:2014-02-11
    公开日:2015-08-14
    发明作者:
    申请人:Saint Gobain Glass France SAS；Compagnie de Saint Gobain SA；
    IPC主号:
    专利说明:

    [0001] TECHNICAL FIELD The present invention relates to the field of identification codes marked on glass sheets. It is possible to use one-dimensional "bar code" type symbols and the like, two-dimensional "Datamatrix" type symbols or the like to serve as glass plate identification codes.
    [0002] These codes can contain any type of information such as for example a number serving as an identifier of the glass sheet. Information such as the place of manufacture or the time and date of manufacture can also be integrated, as well as information of any other suitable type. The symbols are for example marked by laser radiation of any suitable type, oriented preferably perpendicularly to the glass sheet, i.e. to the general plane of the glass sheet. Indeed, the symbols thus marked are generally intended to be read from the front by positioning a device facing the symbol, and therefore facing one of the two main faces of the glass sheet.
    [0003] However, such symbols are not intended to be read when the glass sheets are stacked. An object of the invention is to enable a rapid reading of the codes present on glass sheets, whether the glass sheets are insulated or stacked.
    [0004] According to one aspect of the invention, a glass sheet comprises a symbol marked inside the glass, the symbol forming a code, the symbol being marked in at least two dimensions, the thickness of the glass sheet, parts symbol being marked at different depths in the thickness of the glass sheet.
    [0005] According to particular embodiments, the glass sheet further comprises one or more of the following characteristics taken separately or in any technically possible combination: each part of the symbol is at a unique depth and distinct from the other lines respectively other columns; the different parts correspond to a division of the symbol into different slices, preferably rectilinear and parallel; at least some slices correspond to lines or columns of the symbol; the symbol is in two dimensions, for example of Datamatrix, QR code or similar type; the symbol is parallel or perpendicular to the edge of the nearest sheet of glass; the three marking dimensions of the symbol are the length, the width and the thickness of the glass sheet so that it is readable both by one face of the glass sheet and by a slice of the glass sheet; glass; - the symbol is marked in a plane inclined at 45 ° with a slice of the glass sheet and one side of the glass sheet so that it is legibly readable both by the face of the glass sheet and by the edge of the glass sheet; The invention also relates to a method of marking a symbol forming a code in a glass sheet, comprising: - marking a first portion of the symbol at a first depth in the thickness of the glass sheet; marking a second part of the symbol at a second depth in the thickness of the glass sheet, different from the first depth, the marking of the second part being offset from the marking of the first part in another dimension of the sheet of glass such as width or length.
    [0006] The invention will be better understood on reading the description which follows, made solely by way of illustrative example, on the basis of figures among which: FIG. 1 is a photograph of a sheet of glass, a symbol of "Datamatrix" type being marked on the face of the glass sheet; FIG. 2 is a schematic side view illustrating a stack of glass sheets of the type of FIG. 1; FIG. 3 is a diagram of a marked symbol in a glass sheet, according to one embodiment of the invention; FIGS. 4A and 4B are views by the face and the edge of the symbol of FIG. 3; - Figure 5 illustrates different types of codes in two dimensions. Throughout the text, the term "face" 4 is understood to mean one of the two main faces of the glass sheet 2 and in each slice, one of the four slices 6 forming the sides of the glass sheet 2. The example of symbol 8 illustrated in Figure 3 allows a fast reading both in front reading and reading by the slice. Indeed, as shown in Figure 3, the columns of the symbol 8 were formed in the thickness of the glass sheet 2 at different depths, i.e. with each point of a column at the same depth. Figure 4A is a front view of the symbol and Figure 4B is a view through the edge. As can be seen, the symbol is crushed in its width (i.e. according to the thickness of the glass sheet, i.e. the lines are overwritten) but remains readable automatically by a reading device. To achieve such a symbol, the laser was focused at different depths in the thickness of the glass sheet for each column. It is indeed the focal point of the laser which determines the location of the marking in depth in the glass sheet.
    [0007] Also note that the columns were marked "stepped", i.e. at gradually decreasing depths starting from the slice. Alternatively, it is increasing depths, or different depths of any type suitable for reading by the edge. As a variant, it is not the columns but the lines that are each marked at different depths. In fact, if the columns are parallel to the nearest slice, columns each marked at different depths are preferred. If these are the lines that are parallel to the nearest slice, columns marked each with different depths are preferred. If the symbol is marked in a corner, and therefore close to two slices, the slice for reading the easiest will be preferred. In addition, the symbol 8 is not necessarily parallel to the slice. This is for example a symbol 8 whose columns form an angle of 45 ° with respect to the slice (i.e. obtained by rotation of 45 ° in the plane of the symbol). In such a case, the symbol is for example "cut" in slices (or "parts") parallel to the edge of the nearest sheet of glass and those slices of the symbol marked at different depths, ie the points of each slice being at the same depth. Thus, in general, the symbol 8 is cut into different slices marked at different depths in the thickness of the glass sheet. In another variant, the cutting slices are not parallel and have a shape of any type adapted to allow reading by the slice. Thus, in general, several parts of the symbol are marked at different depths in the thickness of the glass sheet. In a preferred manner, the symbol 8 is in a 45 ° inclined plane with the nearest edge 6 and with a face 4 so that it is legibly readable both by the face 4 of the glass sheet. and by the slice 6 of the glass sheet.
    [0008] Also note that the symbol is not limited to a Datamatrix symbol. It is a variant of a two-dimensional symbol of any suitable type. FIG. 5 illustrates other types of known codes, among them: 3-DI code, Aztex Code, Codablock, Code 1, Code 16K, Dot Code, QR Code, ezCode, BeeTagg Big, BeeTagg Landscape, Data Matrix, Maxicode, Snpwflake, Verocode, BeeTagg Hexagon, BeeTagg None, ShotCode, MiniCode, Code 49, Datastrip Code, Code CP, ISS SuperCode. In general, it is a symbol forming a code of any suitable type. An object of the invention is thus a glass sheet 2 comprising a symbol marked inside the glass, the symbol 8 forming a code, wherein the symbol is marked in at least two dimensions, the thickness of the sheet of glass, parts of the symbol being marked at different depths in the thickness of the glass sheet. In this way, the code can be read by both the face and the edge of the glass sheet. The glass sheet 2 has for example a thickness of between 0.5 and 19 mm, especially between 2 and 12 mm, for example between 4 and 8 mm. Alternatively, however, the glass sheet has a thickness of any suitable type.
    [0009] The symbol 8 is for example marked immediately after cutting the float glass ribbon glass sheets large, or immediately before or even during cutting. The glass sheet then has a width greater than 2 meters and a length greater than 5 meters.
    [0010] This is, for example, silico-soda-lime glass but it is a variant of a glass of any suitable type. In general, it is a glass sheet of any type adapted. To carry out the marking of the code, a pulsed UV laser (triple tripped YAG) 1 pulse pulse, 30 KHz, 2.5 W with a scan of 1 cm / s is used for example. For example, the laser is adapted to alter properties of the glass such as its color or its refractive index, where for example points of the code must be colored (i.e. black spots). This is generally a laser of any type suitable for marking in the volume of the glass. The marking apparatus is for example programmed to mark the columns at different depths and parallel to the nearest slice. The apparatus is arranged facing one side of the glass sheet. A first column is marked with a first focal length corresponding to a first depth.
    [0011] Then, a second column is marked at a farther focal distance, ie at a greater depth, and so on ... In general, the method is of any type adapted to produce a symbol according to the different modes of embodiment of the invention. For slice reading, in the case where the symbol is in a plane inclined at 45 °, the symbol will be perceived identically as by the face. In case of small thickness of the glass sheet and therefore a low angle of inclination of the symbol, the image by the edge will be more deformed and the image by the less deformed face. Reading devices should then be programmed accordingly.30
    权利要求:
    Claims (9)
    [0001]
    REVENDICATIONS1. A glass sheet (2) comprising a symbol (8) marked inside the glass, the symbol forming a code, wherein the symbol is marked in at least two dimensions, including the thickness of the glass sheet, parts of the glass symbol being marked at different depths in the thickness of the glass sheet.
    [0002]
    2. Glass sheet (2) according to claim 1, wherein each part of the symbol (8) is at a unique depth and distinct from the other lines, respectively from the other columns.
    [0003]
    3. Glass sheet (2) according to claim 1 or 2, wherein the different parts correspond to a cutting of the symbol (8) in different slices, preferably rectilinear and parallel.
    [0004]
    4. Glass sheet (2) according to the preceding claim, wherein at least some slices correspond to rows or columns of the symbol.
    [0005]
    5. Glass sheet (2) according to any one of the preceding claims, wherein the symbol (8) is in two dimensions, for example of Datamatrix type, QR code or the like.
    [0006]
    The glass sheet (2) according to any one of the preceding claims, wherein the symbol (8) is parallel or perpendicular to the edge of the nearest glass sheet.
    [0007]
    The glass sheet (2) according to any one of the preceding claims, wherein the three marking dimensions of the symbol (8) are the length, the width and the thickness of the glass sheet so that it readable both by one side of the glass sheet and by a slice of the glass sheet.
    [0008]
    The glass sheet (2) according to any of the preceding claims, wherein the symbol (8) is marked in a plane inclined at 45 ° with a wafer (6) of the glass sheet and a face (4). of the glass sheet so that it is legibly readable both by the face of the glass sheet and by the edge of the glass sheet.
    [0009]
    9. A method of marking a symbol (8) forming a code in a glass sheet (2), comprising: - marking a first portion of the symbol at a first depth in the thickness of the glass sheet; marking a second part of the symbol at a second depth in the thickness of the glass sheet, different from the first depth, the marking of the second part being offset from the marking of the first part in another dimension of the sheet of glass such as width or length.
    类似技术:
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    同族专利:
    公开号 | 公开日
    CA2937389A1|2015-08-20|
    CN106061746A|2016-10-26|
    EP3105063B1|2018-09-05|
    EA035345B1|2020-05-29|
    JP2017507889A|2017-03-23|
    CN106061746B|2020-01-03|
    EA201691605A1|2017-01-30|
    JP6495931B2|2019-04-03|
    EP3105063A1|2016-12-21|
    FR3017483B1|2018-05-18|
    DK3105063T3|2019-01-07|
    US10696587B2|2020-06-30|
    KR20160119822A|2016-10-14|
    PL3105063T3|2019-02-28|
    ZA201605245B|2017-08-30|
    WO2015121548A1|2015-08-20|
    ES2702616T3|2019-03-04|
    US20170008798A1|2017-01-12|
    MX2016010400A|2016-10-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1589404A1|2003-01-30|2005-10-26|Sunarrow Ltd.|Glass key top, key top marking method, and method for manufacturing key unit using the same|
    US20080304525A1|2005-09-22|2008-12-11|Axel Kupisiewicz|Method for Internal Laser Marking in Transparent Materials and Device for Implementing Said Method|
    WO2012174545A1|2011-06-17|2012-12-20|I-Property Holding Corp.|3d laser coding in glass|WO2017210315A1|2016-05-31|2017-12-07|Corning Incorporated|Anti-counterfeiting measures for glass articles|
    CN110023262A|2016-11-24|2019-07-16|法国圣戈班玻璃厂|The method for obtaining label glass plate|JP3898326B2|1998-02-10|2007-03-28|大日本印刷株式会社|Production process management method and substrate with ID|
    DE19832614C2|1998-07-21|2002-10-24|Metec Gmbh|Method and device for detecting the number of fillings in bottle-shaped containers|
    US6190776B1|1999-07-07|2001-02-20|Turkiye Sise Cam|Heat treatable coated glass|
    JP2004259004A|2003-02-26|2004-09-16|Seiko Epson Corp|Data processor using three-dimensional code, data processing method using three-dimensional code, data processing program using three-dimensional code, and article, tag and package having three-dimensional code|
    JP2010079305A|2009-11-20|2010-04-08|Dainippon Printing Co Ltd|Photomask with area code and method for manufacturing the same|
    DE102010037273A1|2010-09-02|2012-03-08|Schott Ag|Method and device for marking glass|
    FR2975687A1|2011-05-27|2012-11-30|Saint Gobain|METHOD FOR CUTTING ONE OR MORE WINDOWS|CN105283322B|2013-06-09|2020-01-14|苹果公司|Laser-formed features|
    US9600694B1|2014-06-11|2017-03-21|Apple Inc.|Laser marking process|
    WO2016084902A1|2014-11-27|2016-06-02|テクノクオーツ株式会社|Product provided with management information|
    JP2019037993A|2017-08-23|2019-03-14|ローランドディー．ジー．株式会社|Laser processing method, workpiece and working material|
    FR3075782A1|2017-12-21|2019-06-28|Saint-Gobain Glass France|METHOD AND DEVICE FOR GENERATING A SEQUENCE OF PLANS OF CUTTING A SEQUENCE OF GLASS PIECES IN A SEQUENCE OF GLASS SHEETS|
    US11200385B2|2018-09-27|2021-12-14|Apple Inc.|Electronic card having an electronic interface|
    法律状态:
    2015-02-04| PLFP| Fee payment|Year of fee payment: 2 |
    2015-10-30| RN| Application for restoration|Effective date: 20150930 |
    2015-11-13| FC| Decision of inpi director general to approve request for restoration|Effective date: 20151012 |
    2016-02-19| PLFP| Fee payment|Year of fee payment: 3 |
    2017-02-21| PLFP| Fee payment|Year of fee payment: 4 |
    2018-02-21| PLFP| Fee payment|Year of fee payment: 5 |
    2020-02-28| PLFP| Fee payment|Year of fee payment: 7 |
    2021-11-12| ST| Notification of lapse|Effective date: 20211005 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1451028A|FR3017483B1|2014-02-11|2014-02-11|GLASS SHEET WITH IDENTIFICATION CODE|
    FR1451028|2014-02-11|FR1451028A| FR3017483B1|2014-02-11|2014-02-11|GLASS SHEET WITH IDENTIFICATION CODE|
    PCT/FR2014/053480| WO2015121548A1|2014-02-11|2014-12-19|Glass sheet with identification code|
    US15/117,799| US10696587B2|2014-02-11|2014-12-19|Glass sheet with identification code|
    JP2016551236A| JP6495931B2|2014-02-11|2014-12-19|Glass sheet with identification code|
    KR1020167024693A| KR20160119822A|2014-02-11|2014-12-19|Glass sheet with identification code|
    CA2937389A| CA2937389A1|2014-02-11|2014-12-19|Glass sheet with identification code|
    PL14833585T| PL3105063T3|2014-02-11|2014-12-19|Glass sheet with identification code|
    MX2016010400A| MX2016010400A|2014-02-11|2014-12-19|Glass sheet with identification code.|
    EP14833585.4A| EP3105063B1|2014-02-11|2014-12-19|Glass sheet with identification code|
    ES14833585T| ES2702616T3|2014-02-11|2014-12-19|Glass sheet with identification code|
    EA201691605A| EA035345B1|2014-02-11|2014-12-19|Glass sheet with identification code|
    DK14833585.4T| DK3105063T3|2014-02-11|2014-12-19|GLASS PLATE WITH IDENTIFICATION CODE|
    CN201480075323.5A| CN106061746B|2014-02-11|2014-12-19|Glass sheet with identification code|
    ZA2016/05245A| ZA201605245B|2014-02-11|2016-07-28|Glass sheet with identification code|
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