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公开(公告)号:US20220009269A1
公开(公告)日:2022-01-13
申请号:US17297138
申请日:2019-11-28
申请人: OBERTHUR FIDUCIAIRE SAS , Centre National de la Recherche Scientifique (CNRS) , ECOLE CENTRALE DE MARSEILLE , Universite D'Aix Marseille
发明人: Julien Lumeau , Fabien Lemarchand , Antonin Moreau , Thomas Begou , Julien Gillot , Xavier Borde
IPC分类号: B42D25/373 , C23C14/54 , B42D25/29 , B42D25/405 , C23C14/04 , C23C14/22
摘要: The present invention particularly relates to a method for physical vacuum deposition of a coating (R) comprising at least one material (M) on at least a portion of a front face (10) of a support (1), said at least one material (M) originating from an evaporation source or an atomisation source (2), wherein:—use is made of a support (1), at least a portion of the front face (10) of which is smooth, that is to say, does not have any roughness and/or reliefs and/or recesses;—said vacuum deposition is carried out while varying the thickness distribution of the material (M) on said front face (10), that is, while progressively varying the thickness deposited, from a central region (11) in the direction of at least one lateral region (12) contiguous to the central region (11), without modifying the position of the evaporation source or atomisation source (2) of the material particles (M).
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公开(公告)号:US12030333B2
公开(公告)日:2024-07-09
申请号:US17297138
申请日:2019-11-28
申请人: OBERTHUR FIDUCIAIRE SAS , Centre National de la Recherche Scientifique (CNRS) , ECOLE CENTRALE DE MARSEILLE , Universite D'Aix Marseille
发明人: Julien Lumeau , Fabien Lemarchand , Antonin Moreau , Thomas Begou , Julien Gillot , Xavier Borde
IPC分类号: B42D25/373 , B42D25/29 , B42D25/405 , C23C14/04 , C23C14/22 , C23C14/54
CPC分类号: B42D25/373 , B42D25/29 , B42D25/405 , C23C14/044 , C23C14/225 , C23C14/542
摘要: The present invention particularly relates to a method for physical vacuum deposition of a coating (R) comprising at least one material (M) on at least a portion of a front face (10) of a support (1), said at least one material (M) originating from an evaporation source or an atomisation source (2), wherein: —use is made of a support (1), at least a portion of the front face (10) of which is smooth, that is to say, does not have any roughness and/or reliefs and/or recesses; —said vacuum deposition is carried out while varying the thickness distribution of the material (M) on said front face (10), that is, while progressively varying the thickness deposited, from a central region (11) in the direction of at least one lateral region (12) contiguous to the central region (11), without modifying the position of the evaporation source or atomisation source (2) of the material particles (M).
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公开(公告)号:US20220105742A1
公开(公告)日:2022-04-07
申请号:US17428451
申请日:2020-02-05
发明人: Marie Dejean , Jean-Louis De Bougrenet De La Tocnaye , Vincent Nourrit , Julien Gillot , Xavier Borde
IPC分类号: B42D25/328 , G02B3/08 , B42D25/20 , G02B30/27
摘要: The present invention particularly relates to an assembly (E) consisting of: a two-dimensional network of micro-optical devices such as microlenses; and a network of micro-images consisting, at most, of as many micro-images (ML) as micro-optical devices, each micro-image being subdivided into N image elements arranged in such a way as to reconstitute, for an observer and through the two-dimensional network of micro-optical devices, N images visble from N different points of view, i.e., N rendering angles, each of these N images representing a reference or recording point of view of a given relief scene consisting of at least one mobile object, characterised by the fact that the image elements consituting a given object within the N images are distriibuted within the network of micro-images in such a way that they appear, depending on the rendering angle, through different micro-optical devices, describing the trajectory of the projection of the object on the plane of the two-dimensional network of micro-optical devices relative to the reference point of view.
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公开(公告)号:US20210394547A1
公开(公告)日:2021-12-23
申请号:US17285652
申请日:2019-10-22
发明人: Xavier Borde , Julien Gillot , Guillaume Chapeau
IPC分类号: B42D25/324 , B42D25/328 , G02B5/18
摘要: The present invention relates in particular to a security element (1) for a valuable document, which comprises an array (R) of at least two contiguous or adjacent lines (2, 2′, 2″), at least one of these lines (2) being raised and having two opposing and at least partially inclined sides (20, 21) that each originate along one of the longitudinal and opposing edges (200, 210) of the line (2), characterised by the fact that the two opposing inclined flanks (20, 21) meet at a single, uninterrupted, sinuous junction area (22), that extends in the longitudinal direction of the line (2), the sides (20, 21) having no discontinuities or interruptions at least in the longitudinal direction.
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公开(公告)号:US11472217B2
公开(公告)日:2022-10-18
申请号:US17285652
申请日:2019-10-22
发明人: Xavier Borde , Julien Gillot , Guillaume Chapeau
IPC分类号: B42D25/324 , B42D25/425 , B42D25/328 , G02B5/18
摘要: The present invention relates in particular to a security element (1) for a valuable document, which comprises an array (R) of at least two contiguous or adjacent lines (2, 2′, 2″), at least one of these lines (2) being raised and having two opposing and at least partially inclined sides (20, 21) that each originate along one of the longitudinal and opposing edges (200, 210) of the line (2), characterised by the fact that the two opposing inclined flanks (20, 21) meet at a single, uninterrupted, sinuous junction area (22), that extends in the longitudinal direction of the line (2), the sides (20, 21) having no discontinuities or interruptions at least in the longitudinal direction.
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公开(公告)号:US11148456B2
公开(公告)日:2021-10-19
申请号:US16772332
申请日:2018-12-13
发明人: Jean-Louis De Bougrenet De La Tocnaye , Marie Dejean , Vincent Nourrit , Julien Gillot , Xavier Borde
IPC分类号: B42D25/328 , B42D25/351 , G02B3/08
摘要: An assembly comprising a complex transparency device, i.e. a refractive and/or diffractive device acting on the light phase, and at least one array of micro-images, wherein: the complex transparency device comprises a periodical two-dimensional array formed from individual “pupils,” wherein each pupil comprises a micro-optical device, at least some of the micro-optical devices having a non-centered optical axis, and at least some of the micro-optical devices positioned non-periodically with variable off-setting of the optical axis thereof with the array; the array of micro-images comprising as many micro-images as micro-optical devices; each micro-image has a contour identical to that of the associated pupil and a surface which is at the most identical to that of the associate pupil; and each micro-image is sub-divided into at least one thumbnail image such that when the transparency device is positioned facing the array of micro-images, and an observer observes the array through the transparency device, the observer sees, at least in a given direction of observation, an image which is reconstructed by the combination of the thumbnail images associated with the direction, wherein within the same subdivision, certain thumbnail images, form “firsts group” and are distributed such that when the transparency device is positioned facing the array of micro-images, the thumb-nail images are respectively arranged according to the optical axis of the associated micro-optical device.
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公开(公告)号:US20210114398A1
公开(公告)日:2021-04-22
申请号:US16772332
申请日:2018-12-13
发明人: Jean-Louis De Bougrenet De La Tocnaye , Marie Dejean , Vincent Nourrit , Julien Gillot , Xavier Borde
IPC分类号: B42D25/328 , B42D25/351 , G02B3/08
摘要: An assembly comprising a complex transparency device, i.e. a refractive and/or diffractive device acting on the light phase, and at least one array of micro-images, wherein: the complex transparency device comprises a periodical two-dimensional array formed from individual “pupils,” wherein each pupil comprises a micro-optical device, at least some of the micro-optical devices having a non-centered optical axis, and at least some of the micro-optical devices positioned non-periodically with variable off-setting of the optical axis thereof with the array; the array of micro-images comprising as many micro-images as micro-optical devices; each micro-image has a contour identical to that of the associated pupil and a surface which is at the most identical to that of the associate pupil; and each micro-image is sub-divided into at least one thumbnail image such that when the transparency device is positioned facing the array of micro-images, and an observer observes the array through the transparency device, the observer sees, at least in a given direction of observation, an image which is reconstructed by the combination of the thumbnail images associated with the direction, wherein within the same sub-division, certain thumbnail images, form “firsts group” and are distributed such that when the transparency device is positioned facing the array of micro-images, the thumb-nail images are respectively arranged according to the optical axis of the associated micro-optical device.
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