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公开(公告)号：US20210276298A1
公开(公告)日：2021-09-09
申请号：US16338856
申请日：2017-10-02
申请人： BOEGLI-GRAVURES SA
发明人： Charles BOEGLI , Alain DROZ , Werner STEFFEN
摘要： A set of thin foil surfaces configured to achieve a joint among the foil surfaces, the joint being arranged to be without discontinuity, comprising at least a first portion of surface dedicated to achieve the joint; pixelized type embossings on the first portion of surface; and at least a second portion of surface dedicated to achieve the joint. The second portion of surface is shaped to correspond to the first portion of surface for making the joint between the first portion of surface and the second portion of surface through contact.
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公开(公告)号：US20240253152A1
公开(公告)日：2024-08-01
申请号：US18561660
申请日：2022-05-19
申请人： BOEGLI-GRAVURES SA
发明人： Charles BOEGLI , Gabriel DUMITRU , Alain DROZ , Mario TONIN
IPC分类号： B23K26/04 , B23K26/03 , B23K26/06 , B23K26/067 , B23K26/362 , B42D25/328 , B42D25/435
CPC分类号： B23K26/048 , B23K26/032 , B23K26/0648 , B23K26/067 , B23K26/362 , B42D25/328 , B42D25/435
摘要： A device for engraving a diffraction grating on a workpiece, comprises an optical set-up comprising a laser, a beam forming device, a beam splitting device, and a focusing head. The laser is configured to output a laser beam. The beam forming device is configured to control a diameter of and a light intensity distribution in the laser beam, and output a primary laser beam. The beam splitting device is configured for a splitting of the primary laser beam into a plurality of split beams for the engraving. The focusing head comprises a microscope objective lens (109) configured to focus the respective split beams in respective foci on the workpiece, an auto-focusing system configured to produce a positioning signal for adjusting and maintaining a distance between the microscope objective lens and the workpiece in order to maintain the respective foci of the split beams on the workpiece and output the positioning signal; and a micro-actuator configured to receive the positioning 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 a relative positioning between the workpiece in the respective foci of the split beams, and the optical set-up; and a controller configured to control the positioning device and the laser according to engraving instructions for the diffraction grating.
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公开(公告)号：US20230381843A1
公开(公告)日：2023-11-30
申请号：US18365283
申请日：2023-08-04
申请人： Boegli-Gravures SA
发明人： Charles BOEGLI , Alain DROZ , Felix LUSTENBERGER
CPC分类号： B21B1/40 , B31F1/07 , B31F2201/0738 , B44B5/0047 , B31F2201/0733 , B44B5/0009
摘要： A method and device of embossing individually light-reflecting areas on a foil material, the method and device comprising feeding a foil material into a roller nip between a pair of rollers, wherein the pair of rollers comprises a first roller and a second roller, providing each of the first roller and second roller at their respective surfaces at least in a determined perimeter, respectively with a plurality of polyhedron-shaped positive projections and a plurality of negative projections complementary to the positive projections, whereby the plurality of positive projections are arranged according to a 2-dimensional grid. The plurality of polyhedron-shaped positive projections seamlessly and gaplessly join with those corresponding negative projections at the intended embossing of the foil material, hence enabling a homogeneously jointed embossed polyhedron-like shape in the foil. The method and device further comprise, for the purpose of providing a plurality of light-reflecting areas on the foil material, that are intended to reflect light in line with a table of reflectivity values for the 2-dimensional grid, according to an orientation and shape of each of the plurality of light-reflecting areas, and enabling a perception by the human eye of a user, of the intended reflected light on a determined wide viewing angle covered by reflected light from any of the light-reflecting areas, a step of adjusting for each of the plurality of light-reflecting areas to be provided, an orientation and shape of the corresponding positive projection in the 2-dimensional grid, that is intended to emboss the light-reflecting area.
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公开(公告)号：US20230249430A1
公开(公告)日：2023-08-10
申请号：US18012874
申请日：2021-06-23
申请人： BOEGLI-GRAVURES SA
CPC分类号： B31F1/07 , G07D7/005 , B31F2201/0733 , B31F2201/0738 , B31F2201/072
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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