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1. 发明申请

WO2022243917A1 A DEVICE AND A METHOD FOR OPTICAL ENGRAVING OF A DIFFRACTION GRATING ON A WORKPIECE 审中-公开
公开(公告)号：WO2022243917A1
公开(公告)日：2022-11-24
申请号：PCT/IB2022/054660
申请日：2022-05-19
申请人： BOEGLI-GRAVURES SA
发明人： BOEGLI, Charles , DUMITRU, Gabriel , DROZ, Alain , TONIN, Mario
IPC分类号： B23K26/03 , B23K26/046 , B23K26/04 , B23K26/06 , B23K26/067 , B23K26/08 , B23K26/352 , B23K26/362 , B42D25/435 , G02B5/18 , B44B5/02 , B44C1/22 , G03H1/02 , B23K37/04 , B23K103/04 , B23K103/00
摘要： A device for engraving a diffraction grating on a workpiece, comprises an optical set-up comprising alaser, a beam forming device, a beam splitting device, and a focusing head. The laser is configured tooutput a laser beam. The beam forming device is configured to control a diameter of and a lightintensity distribution in the laser beam, and output a primary laser beam. The beam splitting deviceis configured for a splitting of the primary laser beam into a plurality of split beams for theengraving. The focusing head comprises a microscope objective lens (109) configured to focus therespective split beams in respective foci on the workpiece, an auto-focusing system configured toproduce a positioning signal for adjusting and maintaining a distance between the microscopeobjective lens and the workpiece in order to maintain the respective foci of the split beams on theworkpiece and output the positioning signal; and a micro-actuator configured to receive thepositioning signal and adjust the distance between the microscope objective lens and the workpiece,whereby the auto-focusing system and the micro-actuator are operationally connected in a closed-loop. The device for engraving further comprises a positioning device configured to perform arelative positioning between the workpiece in the respective foci of the split beams, and the opticalset-up; and a controller configured to control the positioning device and the laser according toengraving instructions for the diffraction grating.

2. 发明申请

WO2022049510A1 A METHOD AND SYSTEM FOR MANUFACTURING AN EMBOSSING DEVICE AND CORRESPONDING EMBOSSING DEVICE 审中-公开
公开(公告)号：WO2022049510A1
公开(公告)日：2022-03-10
申请号：PCT/IB2021/058002
申请日：2021-09-02
申请人： BOEGLI-GRAVURES SA
发明人： BOEGLI, Charles , DUMITRU, Gabriel
IPC分类号： B31F1/07 , B44B5/02 , B44C1/22 , B29C45/37
摘要： A method for manufacturing an embossing device or injection mold including the steps of providing a hard coated embossing roller having a cylindrically-shaped core and a hard-coating layer, the hard-coating layer having a thickness of equal or less than 30 μm, and performing laser ablation to the hard-coated cylinder to remove material from the hard- coating layer to form opening, a surface of the opening forming a structural feature into the hard-coating layer, to form a structured hard-coated cylinder.

3. 发明申请

WO2021144709A1 EMBOSSING SYSTEM WITH EMBOSSING CASSETTE 审中-公开
公开(公告)号：WO2021144709A1
公开(公告)日：2021-07-22
申请号：PCT/IB2021/050220
申请日：2021-01-13
申请人： BOEGLI-GRAVURES SA
发明人： BOEGLI, Charles , LUSTENBERGER, Felix , DROZ, Alain , DUMITRU, Gabriel
IPC分类号： B31F1/07 , B31F2201/0753 , B31F2201/0776
摘要： An embossing system, comprising an embossing frame, and an embossing cassette. The embossing cassette comprises at least 2 rollers, and a body configured to hold the at least 2 rollers, whereby the at least 2 rollers are removably mounted in the body. The embossing frame is configured to removably house the embossing cassette, and the embossing frame comprises an embossing-frame positioning means configured to cooperate with a corresponding body-positioning means of the embossing cassette at a time when the embossing cassette is housed in the embossing frame, to position the embossing cassette in a predetermined position inside of the embossing frame. The embossing system further comprises a plurality of means for adjusting and correcting a position of a rotation axis of the corresponding roller inside the body, a location of each of the means for adjusting and correcting being at one of each end of the at least 2 rollers, and the plurality of means for adjusting and correcting being configured to adjust and correct in at least two of the following: in an axial direction of the corresponding roller, In one of the 2 dimensions of a plane perpendicular to the axial direction, and the embossing frame is further configured to render the plurality of means for adjusting and correcting the position of the rotation axis inaccessible from an outside of the embossing frame at a time when the embossing cassette is housed Inside the embossing frame.

4. 发明申请

WO2023079418A1 METHOD FOR ENGRAVING CODE PATTERNS IN A SOLID PIECE'S TOOL SURFACE 审中-公开
公开(公告)号：WO2023079418A1
公开(公告)日：2023-05-11
申请号：PCT/IB2022/060329
申请日：2022-10-27
申请人： BOEGLI-GRAVURES SA
发明人： BOEGLI, Charles , DUMITRU, Gabriel
IPC分类号： B41C1/02 , B44B5/00 , B29C45/37 , B41C1/05
摘要： A method for engraving a solid piece's tool surface with a plurality of code patterns of structures, wherein the plurality of code patterns comprises a first code pattern comprising first structures with lateral sizes and pitches respectively in a range of 20 to 500 µm; a second code pattern comprising second structures with lateral sizes and pitches each in a range of 1 to 20 µm; and a third code pattern comprising third structures with lateral sizes and pitches each in a range of 0.2 to 5 µm. The method comprises providing a virgin base surface on the solid piece's tool surface; polishing the virgin base surface to obtain a polished base surface; depositing a hard layer on the polished base surface; engraving the third code pattern in the hard layer. The method comprises engraving the first code pattern and the second code pattern before the step of depositing the hard layer, wherein the hard layer reproduces the topography of the first code pattern and the second code pattern.

5. 发明申请

WO2023017302A1 METHOD AND TOOL FOR EMBOSSING OF BARRIER PAPER 审中-公开
公开(公告)号：WO2023017302A1
公开(公告)日：2023-02-16
申请号：PCT/IB2021/057480
申请日：2021-08-13
申请人： BOEGLI-GRAVURES SA
发明人： BOEGLI, Charles , DUMITRU, Gabriel
IPC分类号： B31F1/10 , B31B50/25 , B31F1/07 , B31B50/88
摘要： A method for embossing a barrier paper, wherein the barrier paper comprises paper and a protective layer on at least one of its sides. The method comprises providing a first embossing system with a first embossing tool and a second embossing tool cooperating with the first embossing tool to emboss the barrier paper; providing a patrix structure on the first embossing tool; providing a matrix structure on the second embossing tool; whereby the matrix structure corresponds to the patrix structure in such a manner that when embossing the barrier paper, a functionality of the protective layer is preserved. The method further comprises embossing the barrier paper by inserting the barrier paper between the first and the second embossing tools, applying pressure between the patrix and the matrix structures to press the patrix structure on a paper side which is a side of the barrier paper opposite to the side with the protective layer of the barrier paper, and push the barrier paper in the matrix structure, whereby the protective layer faces the matrix structure, thereby modifying a fiber structure of the paper in the barrier paper by at least one of the following effects: breaking of paper fibers, compressing of the paper fibers, densifying of the paper fibers; resulting in a modified folding behavior of the barrier paper and in maintaining a substantially unchanged shape of the barrier paper over its lifetime.

6. 发明申请

WO2022049511A2 A METHOD AND SYSTEM FOR MANUFACTURING AN EMBOSSING DEVICE BY USING AN ETCH MASK 审中-公开
公开(公告)号：WO2022049511A2
公开(公告)日：2022-03-10
申请号：PCT/IB2021/058003
申请日：2021-09-02
申请人： BOEGLI-GRAVURES SA
发明人： BOEGLI, Charles , DUMITRU, Gabriel
IPC分类号： B31F1/07 , B29C33/00 , B82Y40/00 , B29C33/42 , B29C45/26 , B29C45/37 , B29C33/56 , B29C2045/0094 , B29C45/263 , B29L2031/7562 , B31F2201/0717 , B31F2201/073
摘要： A method for manufacturing a structured embossing cylinder for embossing system including the steps of providing a hard-coated embossing roller having a cylindrically-shaped core and a hard-coating layer on the cylindrically-shaped core, the hard- coating layer having a thickness in a range between 1 μm and 10 μm, and having a surface- roughness value RA of less than 100 nm, depositing a masking layer on the hard-coating layer, the masking layer having a thickness of equal or less than 100 nm, removing material from the masking layer to form at least one opening, and etching to remove material at the at least one opening of the masking layer from the hard-coating layer to form a surface cavity in the hard-coating layer at the at least one opening, the surface cavity forming a structural embossing feature into the hard-coating layer, thereby forming the structured embossing cylinder.

7. 发明申请

WO2021260574A1 ENGRAVED MODULATED PIECE 审中-公开
公开(公告)号：WO2021260574A1
公开(公告)日：2021-12-30
申请号：PCT/IB2021/055543
申请日：2021-06-23
申请人： BOEGLI-GRAVURES SA
发明人： BOEGLI, Charles , DROZ, Alain , DUMITRU, Gabriel , LUSTENBERGER, Felix
IPC分类号： B31F1/07 , B41M3/14 , G07D7/00 , G06K9/00 , B31F2201/0733 , B31F2201/0738 , G06V20/80 , G07D7/005 , G07D7/181
摘要： An engraved solid piece carries data comprising specific information on a surface of the engraved solid piece. The surface is covered by a plurality of block structures, comprising at least a first block structure. Each block structure is a spatially restricted collection of modulated features and base features, which are spread over the surface of the engraved solid piece. Each modulated feature and each base feature has respectively a three- dimensional modulated-feature profile and a three-dimensional base-feature profile. Each of the modulated-feature profiles is the result of applying a corresponding modulation to one of the three-dimensional base-feature profiles, according to a specific, corresponding information. Each modulated feature further is a symbol, which is a transcription of a character of an alphabet. The alphabet is a collection of characters, which are distinct objects of well-defined elementary data. Each of the base features is an engraved elementary three- dimensional topographical element of the surface. Each of the modulated features is an engraved three-dimensional topographical element of the surface. At least a part of the data is transcribed by a code-block structure of modulated features, the code-block structure thereby constituting at least a part of a block structure corresponding to the at least one part of the data. The modulated features of the first block structure are arranged according to a first ordered map, the first ordered map comprising at least a first finite ordered set of first positions of the modulated features of a first code-block structure on the surface, the first block structure corresponding to a first part of the data, and the first ordered map further is configured to arrange the modulated features of the first block structure to constitute an aesthetic ensemble on the surface and render the respective symbols corresponding to the modulated features of the first code-block structure imperceptible to the human eye, but retrievable by means of a software-driven image-sensor/processor combination.

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