WO2017202578A1 - Verfahren zur herstellung einer volumenhologrammfolie mit als übertragungsabschnitte ausgebildeten sicherheitselementen - Google Patents
Verfahren zur herstellung einer volumenhologrammfolie mit als übertragungsabschnitte ausgebildeten sicherheitselementen Download PDFInfo
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- WO2017202578A1 WO2017202578A1 PCT/EP2017/060426 EP2017060426W WO2017202578A1 WO 2017202578 A1 WO2017202578 A1 WO 2017202578A1 EP 2017060426 W EP2017060426 W EP 2017060426W WO 2017202578 A1 WO2017202578 A1 WO 2017202578A1
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- volume hologram
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- G03H2250/00—Laminate comprising a hologram layer
- G03H2250/35—Adhesive layer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2250/00—Laminate comprising a hologram layer
- G03H2250/39—Protective layer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2250/00—Laminate comprising a hologram layer
- G03H2250/42—Reflective layer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2260/00—Recording materials or recording processes
- G03H2260/12—Photopolymer
Definitions
- the invention relates to a method for producing a
- volume hologram film according to the subject matter of claim 1.
- US 2002/0174790 A1 describes a method for producing a security element with a plurality of superimposed ones
- volume hologram layers wherein the volume hologram layers in an intermediate are formed side by side, are separated from the intermediate product and then laminated to a multi-layer body.
- the disadvantage here is that the formation of a high register accuracy of the security element arranged one above the other
- the object of the present invention is to develop an improved method for producing a volume hologram film.
- volume hologram film are formed, described, wherein the
- volume hologram layers wherein it is proposed that the production of the volume hologram film is carried out in a roll-to-roll process with the following process steps:
- the carrier film provided in process step a) may be a polyester film having a thickness in the range from 5 ⁇ m to 200 ⁇ m, preferably in the range from 10 ⁇ m to 30 ⁇ m.
- a release layer which facilitates the separation of the carrier film from the finished security element, as well as a protective layer, which forms the uppermost layer in the finished security element, are applied to the carrier film, as described below.
- the release layer may be in a downstream downstream of the supply roll
- the material that forms the release layer first in a
- Coating apparatus should generally be applied over the entire area by printing, spraying or pouring onto the carrier film.
- the applied layer is dried and / or cured in a drying and / or curing device located downstream of the coating device.
- the protective layer may be in a downstream of the first
- Release layer can be applied. This is the material that the
- Protective layer forms, initially in a Be Gebungsvornchtung usually applied over the entire surface by printing, spraying or pouring.
- the applied protective layer is dried and / or cured in a drying and / or curing device arranged downstream of the coating device.
- a photopolymer film is unwound from a supply roll, passed together with the carrier film between pressure rollers and pressed onto the top of the carrier film or already coated carrier film on the top of the top layer lying on.
- the photopolymer film is made of a
- Laser radiation and / or UV light is crosslinkable, and in particular can change its optical refractive index.
- volume holograms can be formed by area-wise crosslinking, as described below.
- the photopolymer film may have a thickness in the range of 3 ⁇ to 100 ⁇ .
- the photopolymer film can be made as a self-supporting film
- Photopolymer material but also be designed as a carrier film with a non-self-supporting photopolymer layer applied thereto. It may also be provided to form the photopolymer layer
- Photopolymer material over the entire surface or partially by printing, spraying or casting on the top of the carrier film or already coated
- the coated carrier film is fed to an exposure device arranged downstream of the coating device.
- the exposure apparatus may comprise a first exposure station comprising a first laser and a first modulator, an optional second exposure station comprising a second laser and a second modulator, and optional further exposure stations with further lasers and modulators, a volume hologram master, and a UV light source ,
- a volume hologram it may be provided to expose the photopolymer layer with coherent light of the first laser and optionally of the second laser and optional further lasers and then to irradiate it through the UV light source.
- the coated carrier film is preferably in direct or indirect contact with the volume hologram master arranged below the carrier film. It may be provided, the volume hologram master as a flat
- Volume hologram master especially on a plate, or as
- curved volume hologram master in particular perform on a lateral surface of a roller.
- the lasers and the modulators arranged in the beam path between the respective laser and the photopolymer layer and / or an angle of incidence of the exposure beams determining
- Deflection element are driven accordingly, so that the respective, a given color value having image area with a light of a
- Exposure wavelength and / or illuminated with an angle incident light which causes a recording of a volume hologram image area with the predetermined color value and a predetermined angular range of visibility.
- the incident exposure beams are superimposed by the exposure beams reflected by the volume hologram master. Due to this interference of the exposure beams, so-called Bragg planes are formed in the image area within the photopolymer layer. These Bragg levels are local changes of the
- Refractive index within the photopolymer layer which are optically active and thereby form the volume hologram.
- the exposed photopolymer layer is passed under the UV light source. In this way, the photopolymer layer is converted into a first volume hologram layer.
- n of superimposed volume hologram layers is two or more.
- n should be between 2 and 10, more preferably between 2 and 5.
- volume hologram layers and other, in particular optically active layers of a formed from laminated layers security element are required. According to the invention, the individual
- Inline means that there is no interruption of the process steps and / or no decoupled process steps are present.
- register or register or register accuracy or registration accuracy is a positional accuracy of two or more elements and / or layers to understand relative to each other.
- the register accuracy should move within a predetermined tolerance and be as large as possible.
- register accuracy of multiple elements and / or layers to each other is an important feature in order to increase process reliability.
- the positionally accurate positioning can in particular by means of sensory, preferably optically detectable registration marks or
- Register marks take place. These register marks or register marks can either represent special separate elements or regions or layers or themselves be part of the elements or regions or layers to be positioned.
- Lamination can be applied to the security document, different exposure directions and / or different exposure wavelengths can be used and that thereby different spatial directions in which the volume holograms can be observed, and
- Volume holograms can be achieved.
- volume holograms and, if appropriate, further layers register-accurate or register-accurate to previous or following volume holograms and to coordinate and arrange them.
- inline production described here without interposed winding of the volume hologram film allows a particularly accurate relative alignment of the individual layers
- volume hologram layers "offline" through successive steps in one and the same device, thereby producing the multi-layered volume hologram foil, that is, after one pass, the volume hologram foil is wound up and for another
- process step b) the photopolymer layer is applied by pressing a photopolymer film, wherein the
- Photopolymer film is provided on a supply roll.
- the adhesion of the photopolymer film to the carrier film can be improved, for example, by pressing under the action of temperature.
- Photopolymer layer is applied all over or partially by printing, spraying or pouring. It can be provided that, in method step c), the formation of the i-th volume hologram is performed by a laser exposure, as described in detail above. It can further be provided that the i-th photopolymer layer is precured between the process step c) and the process step d) and is finally cured in process step d). For final curing, the coated carrier sheet is fed to a curing device located downstream of the exposure device to allow complete cure of the
- the curing device has a UV lamp.
- a background layer is applied to the nth volume hologram layer.
- the background layer may be downstream in a downstream
- Fabrication station are applied to the nth volume hologram layer.
- Adhesive layer is applied.
- an adhesive layer is applied to the nth volume hologram layer.
- the adhesive layer forms the lowermost layer of the security element formed as a multilayer body.
- the volume hologram foil can be wound onto a take-up roll.
- the volume hologram foil may be used as a transfer foil or as a transfer foil
- the separating layer facilitates the detachment of the security element from the carrier film.
- the protective layer forms after detachment of the
- Security element the top layer of the security element and protects it from environmental influences.
- the photopolymer layer is then applied to the primer layer.
- Intermediate layer is applied to the photopolymer layer.
- the term intermediate layer is used here and below as a generic term for one or more layers, which can be designed differently and can form different functions, as described below. It can be provided that the intermediate layer is formed as a barrier layer or a bonding agent layer.
- the intermediate layer is formed as a decorative layer.
- the intermediate layer is formed as a partial reflection layer. It can be provided that before the process step b) more
- Protective layer and the second intermediate layer is formed as a replication layer
- Protective layer or a primer layer are applied or is, then the aforementioned intermediate layers are applied to the respective uppermost layer of the coated carrier film.
- the microstructure be formed as a blazed grating, a linear or crossed sine grid or an isotropic or anisotropic matt structure. Next are cross lattices, lens structures or
- the background layer may be formed as a layer or as a multi-layer body formed of multiple layers. It can also be provided that the background layer in areas
- the background layer has a color layer of color-constant pigment or colorants.
- volume holograms can appear in an improved contrast because the light reflection compared to a bright
- the color impression of the volume hologram can be influenced by the color of the underlying background layer.
- the background layer has an optically variable color layer.
- An optically variable ink layer for example an optically variable pigment (OVI, Optically Variable Ink) and / or a
- Thin film layer system and / or a liquid crystal system shows different colors at different viewing angles.
- Property is useful, for example, for designing effective designs.
- Thin-film element has. While the thin-film element is perceived in color under all viewing angles, the color in
- the volume holograms of the volume hologram layers can only in be visible in certain angular ranges. If the color of the thin-film element differs at a certain viewing angle from the color of the respective volume hologram at this viewing angle, the color impression of the respective volume hologram is changed by the superposition with the color of the background thin-film element.
- the thin film element may comprise a partially transmissive first reflective layer, a highly reflective second reflective layer, and a transparent spacer layer disposed between the first reflective layer and the second reflective layer.
- the spacer layer may be formed in a thickness in the range of 100 nm to 1000 nm. It can further be provided that the background layer has a
- the mask layer can be formed as a metallic layer covered by an intermediate layer, which is formed over the entire surface or in regions.
- the metallic layer can after the application of the
- Volume hologram layers are arranged and causes on the one hand, that the surface of the security document is covered and thereby the overlying volume holograms are not superimposed on the color and shape of any pressure on the security document.
- the mask layer has a partially formed ink layer, a first intermediate layer, a metallic layer and an optional second intermediate layer.
- the intermediate layers may each be in the form of a replication layer and / or barrier layer and / or
- Reflection layer be formed.
- the first intermediate layer is formed as a replication layer, that in the first intermediate layer
- Surface microstructure is applied to a metallic layer.
- the metallic layer may be formed over the entire surface or only in
- the metallic layer may be formed of aluminum, copper, gold, silver, chromium, tin or an alloy of these materials.
- the metallic layer is formed with a thickness in the range from 0.1 nm to 1000 nm, preferably from 5 nm to 100 nm.
- the background layer has an absorption layer.
- the absorption layer can be formed over the entire surface, but also only in some areas.
- the absorption layer may be formed as a non-tunable Fabry-Perot interferometer, which may be made, for example, of a partially transmissive metallic mirror layer, e.g. made of aluminum or silver followed by a thin dielectric and transparent layer and a second mirror layer (multiple interference filter).
- a partially transmissive metallic mirror layer e.g. made of aluminum or silver followed by a thin dielectric and transparent layer and a second mirror layer (multiple interference filter).
- Wavelength can be set.
- the absorption layer can after the
- the security element can be arranged on a security document below the volume hologram layers and can cause the surface of the security document is covered and thereby the overlying volume holograms are at least partially not superimposed by the color and shape of any pressure on the security document. In addition, the visibility of the
- the absorption layer may be formed as a dielectric filter.
- the dielectric filter may be four, for example
- the fluorescent layer can be formed over the entire surface or in regions.
- the fluorescent layer is, for example, dissolved from a lacquer in a thiophene-benzoaxol derivative
- the fluorescent layer is formed by the usual printing methods, such as gravure, screen, flexo, ink jet or others Coating process applied over the entire surface or partially in decorative printing.
- the layer thickness is preferably between 0.1 ⁇ and 6 ⁇ after drying.
- the Phosphorescent layer has.
- the phosphorescent layer can be formed over the entire surface or in regions.
- the phosphorescent layer is applied with the usual printing methods, such as intaglio, screen printing, flexographic printing, inkjet printing or other coating methods over the entire surface or partially in decor pressure.
- the phosphorescent layer can be arranged on a security document below the volume hologram layers. While the
- Phosphorescent layer upon irradiation with daylight due to the inherent color of the phosphorescent pigments, appears in shades of gray, they light up in color when irradiated with UV light.
- the overlying volume holograms can be better visible and / or the color impression of the volume holograms can be changed by the superposition with the phosphorescence.
- the phosphorescent pigments linger over a certain period of time, thereby improving visibility and / or the altered color impression of the Volunnenhologrannnne for a certain time after the illumination with UV light is maintained.
- the background layer has a microstructure layer.
- the microstructure layer can be formed as a replication layer, wherein a surface microstructure is molded into the replication layer and a metallic layer is applied to the surface microstructure.
- the surface microstructure may be referred to as a linear or crossed sine, as an asymmetric blaze, as an isotropic or anisotropic
- the metallic layer may be formed over the entire surface or be formed only in partial areas.
- the metallic layer may preferably consist of aluminum, copper, gold, silver, chromium or tin or an alloy of these materials and may have a thickness of 0.1 nm to 1000 nm, preferably a thickness of 5 nm to 100 nm.
- the microstructure layer can be arranged on a security document below the volume hologram layers and, on the one hand, can cause the surface of the security layer to be deposited
- Security document is overlaid and thus the overlying volume holograms are not overlaid by the color and shape of any printed image on the security document.
- the overlying volume holograms are not overlaid by the color and shape of any printed image on the security document.
- the surface microstructure is formed as a sine grid with periods in a range of 0.2 ⁇ m to 10 ⁇ m, preferably in a range of 0.5 ⁇ m to 2.0 ⁇ m, and depths in a range of 30 nm to 5000 nm, preferably in a range of 100 nm to 300 nm.
- an HRI layer with a high refractive index is applied to the surface microstructure.
- the HRI layer may be applied instead of or in addition to the metallic layer. It is a particularly transparent layer with high
- HRI High Refractive Index
- the HRI layer does not cover the surface of the security document, and the volume holograms lying above the HRI layer in particular are superimposed on the color and shape (motif) of any print image on the security document.
- the volume holograms formed in the volume hologram layers and a surface hologram provided with the HRI layer in the surface microstructure may be visible at the same viewing angle and / or at different viewing angles.
- Security element can be transferred to a security document, which may be, for example, a personal document, a banknote, a bank card or any other card document.
- a security document which may be, for example, a personal document, a banknote, a bank card or any other card document.
- a trained as a banknote or identity document In a trained as a banknote or identity document
- Security element can be arranged on top of the security document and a second security element in a window of
- the first security element can also be configured as a non-strip-shaped patch or as an overlay covering the entire security document over the entire area.
- the first security element is the one described above
- volume hologram foil Transfer volume hologram foil to the security document. If the volume hologram film is designed as a transfer film, the carrier film is detached from the transfer layer after application of the transfer layer to the security document. On the other hand, is the volume hologram foil as
- the carrier film remains after the application as the top layer of the security element on the security document.
- the window may, for example, be formed as a transparent region of a polymer banknote or as a punched out hole of a paper banknote. Furthermore, it may be e.g. also around a transparent area in an ID card, e.g. made of polycarbonate or similar act. Visual features in the transparent areas of the security document can be designed differently and can be divided into three groups:
- Security document is held in front of a light source.
- Transmission feature are rarely fulfilled, e.g. when a banknote is held against the light. Thus, this transmission feature is almost invariably not visible, only in transmission, viewed against a light source, does an information appear (e.g., the denomination of the bill).
- Combination information is a visually interesting and at the same time very forgery-proof feature.
- Fig. 2 shows a first embodiment of a device for
- 3a shows a first embodiment of a manufacturing station in
- FIG. 2 in a schematic representation
- 3b shows a second embodiment of a manufacturing station in
- Fig. 2 in a schematic representation; a second embodiment of the security element; the principle of additive color mixing; a first schematic representation to illustrate under which angles a Volunnenhologrannnn is visible a first schematic representation of the geometric conditions when viewing a
- Volume hologram a second schematic representation to illustrate under which angles a volume hologram is visible a second schematic representation of the geometric conditions when viewing a
- volume hologram a first embodiment of the one with
- Security element of a trained document a third embodiment of the security element; A fourth embodiment of the one with
- Security element of a trained document shows a fourth exemplary embodiment of the security identifier
- Fig. 18 shows a seventh embodiment of the one with
- Fig. 20 shows a ninth embodiment of the one with
- Fig. 21 shows a fifth embodiment of the security element
- FIG. 22 shows a sixth exemplary embodiment of the security element
- FIG. Fig. 23 shows a seventh embodiment of the security element
- Fig. 24 shows an eighth embodiment of the security element
- Fig. 25 shows a ninth embodiment of the security element
- Fig. 26 shows a tenth embodiment of the security element; 27 shows an eleventh embodiment of the security element;
- Fig. 28 shows a twelfth embodiment of the security element
- Fig. 30 is a fourteenth embodiment of the
- Fig. 31 is a fifteenth embodiment of the
- Fig. 32 shows a tenth embodiment of the invention with the
- Fig. 33 is a third schematic representation of the geometric
- FIG. 35 is a fourth schematic illustration showing at which angles a volume hologram is visible.
- Fig. 36 is a fourth schematic representation of the geometric
- Fig. 37 is a fifth schematic representation of the geometric
- Fig. 38 is a sixth schematic representation of the geometric
- FIG. 39 is a fifth schematic illustration showing at which angles a volume hologram is visible.
- Fig. 40 is a schematic representation of a
- Fig. 41 is a seventh schematic representation of the geometric
- FIG. 42 shows an embodiment of a surface relief master in a schematic sectional representation
- Fig. 43 shows the principle of volume hologram production
- Fig. 44 shows an eleventh embodiment of one with the
- Fig. 45 shows a twelfth embodiment of the one with
- Fig. 46 shows a thirteenth embodiment of the one with
- Fig. 47 shows a fourteenth embodiment of the invention
- Fig. 49 shows a sixteenth embodiment of the one with
- Fig. 50 shows a seventeenth embodiment of the invention with the
- Fig. 53 shows a twentieth embodiment of the invention
- FIG. 55 shows a twenty-second embodiment of one with the
- FIG. 56 shows a twenty-third embodiment of one with the
- Fig. 58 shows a twenty-fifth embodiment of the invention
- Fig. 59 is a twenty-sixth embodiment of a document formed with the security element
- Fig. 60 is a twenty-seventh embodiment of a document formed with the security element
- Fig. 61 shows a twenty-eighth embodiment of the invention with the
- Fig. 62 shows a twenty-ninth embodiment of a document formed with the security element.
- 1 .1 to 1 .1 1 show an embodiment of the inventive method for producing a Volumenhologrammfolie 1f, on the
- Security elements 1 are arranged consecutively, in successive steps.
- the security element 1 or an intermediate step of the security element which forms a section of the volume hologram foil 1f is shown in FIGS. 1 .1 to 1 .1 1.
- the device 2 comprises a supply roll 31, a first production station 3a, a second one
- Manufacturing station 3b a third manufacturing station 4a, a fourth
- a release layer is applied to the carrier film 11 in the first production station 3a.
- a protective layer is applied to the release layer. It may also be provided to omit the release layer.
- the third manufacturing station 4a and the fourth manufacturing station 4b each have one in the first embodiment shown in FIG. 3a
- the coating device 41 has a supply roll 41 v for receiving a photopolymer film 12 f and nip rollers 41 w.
- the photopolymer film 12f can be used as a self-supporting film of photopolymer material 12, but also as a carrier film with a non-self-supporting film applied thereto
- Photopolymer layer 12 may be formed.
- the photopolymer film 12f is pressed onto the coated carrier film 11 between the pressure rollers 41w.
- the exposure device 42 comprises a first laser 42la, preferably with a downstream first optical system and / or a first modulator 42ma, an optional second laser 42lb with preferably a downstream second optical system and / or a second modulator 42mb
- volume hologram master 9 and a UV light source 42u The coated one Carrier film 1 1 is exposed in the exposure device 42 for recording a volume hologram in the photopolymer layer 12 with coherent light of the first laser 42 a and the optional second laser 42 b.
- the photopolymer layer 12 is in direct or indirect contact with the volume hologram master 9, which is designed as a surface relief and / or as a volume hologram and in which in Fig. 3a shown
- Embodiment is arranged on the surface of a plate-shaped pad. Downstream of the second laser 42lb, the UV light source 42u is disposed, passing under the UV light source 42u
- Photopolymer slaughter 12 is developed into a volume hologram layer 13.
- the volume hologram layer 13 is located in the downstream of the
- Fig. 3b shows a second embodiment of the third and the fourth
- the production stations 4a and 4b each have a first coating device 41a, an exposure device 42, a first
- Hardening device 43 a a second coating device 41 b and a second curing device 43 b.
- Protective layer 17s formed carrier film 1 1 is the first
- the release layer 17t is optionally provided.
- a photopolymer material is wholly or partially formed by printing, spraying or pouring on the protective layer 17s of the carrier film 1 1 applied.
- the exposure device 42 is downstream of the first
- the exposure device 42 comprises a first laser 42la with a downstream first optics and a first modulator 42ma, a UV light source 42u and a
- Exposure roller 42 w on which the coated carrier film 1 1 is guided.
- a second laser 42lb with a downstream second optic and a second modulator 42mb can be arranged downstream, as shown in FIG. 3b.
- the coated carrier film 1 1 is in the exposure apparatus 42 for recording a
- Photopolymer layer 12 is in direct or indirect contact with a volume hologram master 9, not shown in FIG. 3b, which is designed as a surface relief and / or as a volume hologram and is arranged in or on the surface of exposure roller 42w. Downstream of the optional second laser 42lb, the UV light source 42u is located, passing under the UV light source 42u
- Photopolymer slaughter 12 is developed into a volume hologram layer 13.
- the volume hologram layer 13 is located in the downstream of the
- Exposure device 42 arranged first curing device 43 a passed under a UV light source 42 u and completely cured.
- the second coating station 41 b is downstream of the
- Hardening device 43 a arranged.
- an intermediate layer is formed on as a multi-layer body
- FIG. 1 shows a first method step in which a carrier foil 11 is arranged on the supply roll 31 (FIG. 2).
- the carrier film 1 1 may be a polyester film with a thickness in the range of 5 ⁇ to 200 ⁇ , preferably in the range of 10 ⁇ to 30 ⁇ act.
- Fig. 1 .2 shows a second method step, in which in the downstream of the supply roll 31 arranged first manufacturing station 3a, a release layer 17t is applied to the carrier film 1 1.
- the material that forms the release layer 17t first in one
- Coating device generally applied over the entire surface by printing, spraying or pouring onto the carrier film 1 1.
- the applied layer is disposed downstream of the coater
- FIG. 1 shows a third method step in which a protective layer 17s is applied to the release layer 17t in the second production station 3b arranged downstream of the first production station 3a.
- the material which forms the protective layer 17s first in a Coating usually applied over the entire surface by printing, spraying or pouring. The applied layer is dried in a downstream of the coating device drying and / or
- Hardening device dried and / or cured.
- FIG. 1 shows a fourth method step, in which a photopolymer layer 12 is applied to the coated carrier film 11 in the downstream third production station 4a (FIG. 2).
- a photopolymer film 12f is unwound from the supply roll 41v, together with the carrier film 11 between the two
- the photopolymer film 12 f is formed of a photopolymer, which under the influence of particular of
- Laser radiation and / or UV light is crosslinkable, and in particular can change its optical refractive index.
- volume holograms can be formed by area-wise crosslinking, as described below.
- the photopolymer film 12f has a thickness in the range of 3 ⁇ m to ⁇ ⁇ m.
- the photopolymer film can be designed as a self-supporting film of photopolymer material, but also as a carrier film with a non-self-supporting photopolymer layer applied thereon. It can also be provided for
- FIGS. 1, 5 and 1 .6 show a fifth method step, in which the coated carrier foil 11 is located downstream of the
- Coating device 41 arranged exposure device 42 is supplied (Fig. 2).
- the exposure device 42 has a first one Exposure station 42a, comprising a first laser 42la, preferably a first optic and a first modulator 42ma, an optional second one
- Exposure station 42b comprising a second laser 42lb, preferably a second optic and a second modulator 42mb, and optional further exposure stations with further lasers, optics and modulators, a volume hologram master 9 and a UV light source 42u ( Figure 3a).
- the photopolymer layer 12 is exposed to coherent light of the first laser 42la and optionally the second laser 42lb and optional other lasers, and then irradiated by the UV light source 42u.
- the coated carrier film 11 is preferably in direct or indirect contact with the volume hologram master 9 arranged below the carrier film 11. In this case, it may be provided that the volume hologram master 9 is planar
- Volume hologram master 9 in particular arranged on a plate, as shown in Fig. 3a, or as a curved volume hologram master,
- Beam path between the respective laser and the photopolymer layer 12 arranged modulators 42ma and 42mb and / or a the incident angle of the exposure beam determining deflector (not shown in Fig. 3a) are driven accordingly, so that the respective, having a predetermined color value image area with a light of a Exposure wavelength and / or illuminated with an angle incident light, which is a recording of a volume hologram image area with the
- the incident exposure beams are superposed with the exposure beams reflected by the volume hologram master 9. Due to this interference of the exposure beams, so-called Bragg planes are formed in the image area within the photopolymer layer. These Bragg planes are local changes in the refractive index within the photopolymer layer 12, which are optically active and thus the
- Photopolymer layer 12 passed under the UV light source 42u. In this way, the photopolymer layer 12 in a first
- volume hologram layer 13a converted.
- the carrier film 11 coated with the optional release layer 17t and / or the optional protective layer 17s and the first volume hologram layer 13a is fed to the curing device 43 located downstream of the exposure device 42 to fully cure the
- the curing device 43 has a UV lamp 42u (FIG. 3a).
- FIG. 1 shows a sixth method step, which is implemented like the fourth method step described above in FIG. 1, with the difference that in the fourth production station 4b (FIG. 2) arranged downstream of the third production station 4a another photopolymer layer 12 is applied to the first volume hologram layer 13a.
- FIGS. 1, 8 and 1 .9 show a seventh method, in which a second volume hologram layer 13b, which is arranged on the first volume hologram layer 13a, is formed analogously to the fifth method step described above in FIGS. 1, .5 and 1 .6.
- the sixth and seventh process steps can be repeated n times.
- FIG. 1 shows an eighth process step in which a background layer 15 is applied to the second volume hologram layer 13b in the fifth production station 5 (FIG. 2) located downstream of the fourth production station 4b.
- the background layer 15 may be formed as a color layer, which by the usual printing methods, for example
- Coating process is applied over the entire surface or partially in decorative printing.
- FIG. 1 shows a ninth process step in which an adhesive layer 16 is applied to the background layer 15 in the sixth production station 6 (FIG. 2) arranged downstream of the fifth production station 5.
- volumenhologrammfolie is completed with a first embodiment of the security element 1.
- the volume hologram foil 1f is arranged after the ninth step downstream of the sixth production station 6
- the adhesive layer 16 forms the lowest Layer of the security element 1 designed as a multi-layer body.
- Lamination can be applied to the security document, different exposure directions and / or different exposure wavelengths can be used and that thereby different spatial directions in which a volume hologram can be observed and / or
- volume hologram of the first volume hologram layer 13a it is thereby possible for the volume hologram of the first volume hologram layer 13a to be visible in red in the running direction of the volume hologram foil 1f, while the volume hologram of the second volume hologram 1f is visible in red
- Volume hologram layer 13b transverse to the direction of the
- Volume hologram foil 1 f is visible in green.
- volume holograms To generate volume holograms and to coordinate and arrange.
- inline production described here without interposed winding of the volume hologram foil 1f allows a particularly accurate relative alignment (register accuracy,
- volume hologram foil 1f is wound up and unwound accordingly for another passage in the same device.
- a registration of the layers to each other is possible, but the accuracy is lower than in the above-described advantageous inline production.
- FIG. 4 shows a second exemplary embodiment of the security element 1, which, like the first exemplary embodiment of the security element illustrated in FIG. 1 .1, is formed, with the difference that the security element 1 additionally has intermediate layers:
- a first intermediate layer 17a is arranged on the protective layer 17s;
- a second intermediate layer 17b is on the first
- Volume hologram layer 13a arranged
- a third intermediate layer 17c is on the second
- Volume hologram layer 13b arranged.
- the intermediate layers 17a, 17b, 17c can be used, for example, as functional layers, such as barrier layers and / or adhesion promoter layers, and / or as decorative layers, such as e.g. Color layers and / or be formed as full-surface or partial reflection layers.
- OMI Optically variable ink
- the reflection layer may be formed over its full area or partially as a metal layer and / or HRI layer.
- the intermediate layers 17a, 17b, 17c may be formed as an endless motif and / or as individual images. Furthermore, such complementary motifs, interlacing, overlaps, multiple patch can be formed.
- the optically variable volume holograms formed in the volume hologram layers 13a and 13b are visible only in certain angular ranges. If the color of the background layer 15 differs from the colors of the volume holograms, then the color impression of the respective
- Table 1 shows some possibilities. For example, a green volume hologram formed in the volume hologram layer 13a or 13b appears on a violet background layer 15 in a cyan to turquoise color. Ocher, on the other hand, appears on a pink colored background layer 15.
- volume hologram layer which are arranged one above the other and / or which can be applied to the superimposition of juxtaposed, differently colored, screened or pixelated volume hologram regions.
- RGB red, green, blue
- the three primary colors are superimposed with nearly equal intensity, e.g. 30% red, 30% green and 30% blue create a nearly gray hue.
- 0% corresponds to pure black, i. the RGB values are each zero, 100% corresponds to bright white, i. the RGB values are maximum.
- gray values which are also called achromatic colors. The more precisely the intensities of the three primary colors coincide, the more indistinct is the achieved mixed color, because in this mixed color none of the three primary colors stands out in particular.
- the described color mixture also works satisfactorily for many cases, if only two basic colors are used, for example only red and blue or only red and green. Although no achromatic mixing colors are produced, the resulting visual effect can produce an almost achromatic impression on the human eye.
- Blue in the range of 450 nm to 490 nm
- a common international definition for red is a wavelength of 700 nm, for green 546 nm and for blue 436 nm.
- Fig. 6 shows the principle of additive color mixing in two
- volume holograms denote angles ⁇ , under which a volume hologram is visible, and the y-axis denotes the intensity of a color of the volume hologram. If the volume holograms so
- volume Hologramm With a color F1 at an angle ⁇ visible and at the same time the second volume hologram is visible in an above or below the second volume hologram layer with a color F2 at the same or a very similar angle, then superimpose the colors F1 and F2 of the volume holograms so the existence
- FIG. 7 shows a schematic representation of the geometric conditions when viewing a volume hologram.
- a security element 1 arranged on a document 18 has a second one
- Volume hologram layer 13b having a second volume hologram and a color F2, a second intermediate layer 17b, a first
- Volume hologram layer 13a having a first volume hologram and a color F1, a first intermediate layer 17a and a protective layer 17s on.
- the security element 1 is applied to the adhesive layer 16 on the document 18 and covered by the protective layer 17s.
- the security element 1 is illuminated by a light source 7, which ideally emits white light.
- the colors F1 and F2 are superimposed in the eye of a viewer 8 to a mixed color. For example, a yellow color impression can be generated by superimposing a red and a green overall hologram.
- it is also possible to produce an achromatic white or a gray volume hologram for example by superimposing a blue and a yellow volume hologram. Table 2 shows some possibilities resulting from the superposition of two volume hologram layers.
- FIG. 9 shows a schematic representation of the geometric conditions when viewing a security element, which is designed as described in FIG. 8.
- a security element 1 is designed like the security element described in FIG. 7, with the difference that the
- Security element 1 a third volume hologram layer 13c with a third volume hologram and a color F3 and a third
- Volume hologram layer 13b is arranged has.
- the colors F1 to F3 are superimposed in the eye of the observer 8 to a mixed color as shown in FIG. For example, by superimposing a red, a green and a blue volume hologram in the different
- volumenhologramm füren a gray or a white color impression are generated.
- rasterized embodiment of the volume hologram layers 13a to 13c it is in principle possible to produce a screened true color image, for example a true color motif, such as a portrait.
- the following Figures 10 to 12 show embodiments of a formed with the security element 1 document 18.
- the document 18 has a longitudinal axis ai, which is aligned with the longitudinal extent of the document 18 and a transverse axis a q , with the transverse extent of the
- Document 18 is aligned.
- the document 18 may be, for example, a bank card, a credit card, an identity card or a banknote.
- the strip-shaped security element 1 is arranged on top of the document 18.
- the background layer 15 of the security element 1 is formed with a color F1, which is indicated by a hatching.
- F1 a color of the document 18 is shown as in
- FIG. 10 shows a first exemplary embodiment of the document 18, which is formed with a security element 1, as described in FIGS. 1, 9 and 4.
- a security element 1 as described in FIGS. 1, 9 and 4.
- volume hologram with a first motif 14a for example, the letter "A”
- a color F2 visible in a first position, which is formed in the first volume hologram layer 13a around the longitudinal axis ai, so at a certain tilt angle
- a second volume hologram with a second motif 14b for example, the
- the second volume hologram may be formed in the first volume hologram layer 13a or in the second volume hologram layer 13b If, for example, the color F1 of the background layer 15 is a bright yellow, a green first appears Volume hologram in front of this background color lemon yellow, while a red second volume hologram appears in a bright orange.
- the color F2 and the color F3 can also be the same.
- Fig. 1 1 shows a second embodiment of the document 18th Das
- Document 18 is designed like the document described in FIG. 10, with the difference that the first volume hologram upon tilting of the
- Document 18 changes color, but the subject is retained.
- the first volume hologram which may be formed in the first volume hologram layer 13a or in the second volume hologram layer 13b, is visible when viewed perpendicularly in a color F2, for example in red. If the document 18 is tilted, the first volume hologram in a color F3, for example in green, is visible at a certain tilt angle. This color impression is changed by the color F1 of the background layer 15. A mixed color is formed, as explained in greater detail in FIG. 5. For example, if the color F1 of the background layer 15 is a bright yellow, the first volume hologram appears in front of this background color in a bright orange. If you tilt document 18, the first volume hologram appears in lemon yellow.
- Fig. 12 shows a third embodiment of the document 18. The document 18 is formed like the document described in Fig. 10, with the
- Volume hologram with a first motif 14a and a color F2 is visible in a first position when viewed vertically of the document 18. If the document 18 is tilted by a first tilt angle, a second volume hologram with a second motif 14b and a color F3 is visible in a second position.
- the second volume hologram may be formed in the first volume hologram layer 13a or in the second volume hologram layer 14b. If one tilts the document 18 for a second
- Tilt angle which is greater than the first tilt angle, so is a third
- volume hologram with a third motif 14c and a color F4 visible in a third position may be formed in the first volume hologram layer 13a, in the second volume hologram layer 13b or in a third volume hologram layer 13c. If, for example, the color F1 of the background layer 15 is a bright yellow, a green first volume hologram appears in front of this background color F1 in
- the colors F1 to F3 of the three volume holograms may also be the same as in the exemplary embodiment illustrated in FIG.
- FIG. 13 shows a third exemplary embodiment of the security element 1.
- the security element 1 is as described above in Fig. 4
- An optically variable ink layer is a special printed ink layer that changes color depending on the viewing angle. It contains, for example, optically variable pigments which cause a color shift in a variation of the
- the optically variable color layer 15o appears, for example, when viewed perpendicularly in a color F1, e.g. Purple, and appears obliquely in a color F2, e.g. Olive green or brown.
- the intermediate layer 17d may, like the intermediate layers 17a, 17b, 17c, be used, for example, as a functional layer, such as a barrier layer and / or an adhesion promoter layer, and / or as a decorative layer, such as e.g. a
- Color layer and / or be formed as a full-surface or partial reflection layer are examples of the color layer and / or be formed as a full-surface or partial reflection layer.
- optically variable color layer 15o is perceived at all viewing angles, the color varying depending on the viewing angle, those in the volume hologram layers 13a and 13b
- the color of the optically variable ink layer 15o differs from the color of the respective one at a certain viewing angle
- Figures 14 to 16 show embodiments of a document 18 which is formed with the security element described in Fig. 13.
- Fig. 14 shows a fourth embodiment of the document 18. A first one formed in the first volume hologram layer 13a
- Volume hologram with a first motif 14a and a color F1 is visible in a first position when viewed vertically. If the document 18 is tilted about its longitudinal axis, a second volume hologram with a second motif 14b and a color F2 in a second position is visible at a certain tilt angle.
- the second volume hologram may be in the first volume hologram layer 13a or in the second
- Volume hologram layer 13b may be formed.
- the color of the optically variable ink layer 15o changes from a color F3 to a color F4 when the document 18 is tilted. Is the vertical view of the
- Document 18 perceptible color F3 of the optically variable ink layer 15o for example, purple, so appears a green first volume hologram in turquoise. If the color F4 of the optically variable ink layer 15o perceptible upon tilting of the document 18 is, for example, green or olive green, a red second volume hologram in orange appears.
- Volume holograms may also have the same color F1, F2.
- Fig. 15 shows a fifth embodiment of the document 18.
- the document 18 is formed like the document described in Fig. 14, with which Difference that the first volume hologram changes its color when tilting the document 18.
- Volume hologram layer 14 formed first volume hologram appears when viewed vertically in a color F1, for example green. If the document 18 is tilted, the first volume hologram in a color F2 is visible at a certain tilt angle, for example red. If the color F3 of the optically variable ink layer 15o is purple, for example, when viewed vertically, the green first volume hologram appears in turquoise , Is the color F4 the optically variable
- Fig. 16 shows a sixth embodiment of the document 18.
- Document 18 is formed like the document described in Fig. 14, except that it shows a different optical effect under three different tilt angles.
- Volume hologram with a first motif 14a and a color F1 is visible in a first position when viewed vertically. If the document 18 is tilted about its longitudinal axis, a second volume hologram with a second motif 14b and a color F2 in a second position becomes visible at a certain tilt angle.
- the second volume hologram may be in the first volume hologram layer 13a or in the second
- Volume hologram layer 13b may be formed. If the document 18 is tilted further, a third volume hologram is included in a larger tilt angle a third motif 14c and a color F3 visible in a third position.
- the third volume hologram may be formed in the first volume hologram layer 13a, in the second volume hologram layer 13b or in a third volume hologram layer.
- the volume holograms may have the same color as shown in Fig. 16, but they may also have different colors. If, for example, a color F4 of the optically variable color layer 15o is purple when viewed vertically, a green first volume hologram in turquoise appears. When tilting by a certain angle, the optically variable ink layer 15o appears in a color F5, for example brown.
- FIG. 17 shows a fourth embodiment of the security element.
- a security element 1 is as described above in FIG.
- Background layer is not formed as an optically variable ink layer, but as a thin-film element 15d.
- the thin film element 15d has a partially transmissive first reflection layer 19ra, a high reflection second reflection layer 19rb, and a transparent one disposed between the first reflection layer 19ra and the second reflection layer 19rb
- Spacer layer 19a on.
- the thickness of the spacer layer 19a is in the range of half the wavelength of the visible light, ie in the range of 200 to 500 nm.
- Such a thin-film element 15d has a viewing and / or illumination angle-dependent color change effect. While the optically variable thin-film element 15d is perceived in color at most viewing angles and / or illumination angles, the color varying as a function of the viewing angle and / or illumination angle, the optically variable volume holograms of the volume hologram layers 13a and 13b are only in certain respects
- Thin film element 15d varies depending on the viewing angle, it is possible, different color impressions of the volume hologram layers 13a, 13b depending on the viewing angle and / or
- Figs. 18 to 20 show documents formed with the security element described above.
- Fig. 18 shows a seventh embodiment of a with the
- a first volume hologram with a first motif 14a and a color F1 formed in a first volume hologram layer 13a is visible in a first position when the document 18 is viewed perpendicularly. If the document 18 is tilted about its longitudinal axis, a second volume hologram with a second motif 14b and a color F2 in a second position is visible at a certain tilt angle.
- the second Volume hologram may be disposed in the first volume hologram layer 13a or in the second volume hologram layer 13b.
- the thin-film element 15d appears vertically when viewed in a color F3, for example purple, a green first appears
- volume hologram in turquoise.
- a red second volume hologram appears in orange.
- the two volume holograms can also have the same color.
- FIG. 19 shows an eighth exemplary embodiment of a document 18 formed with the security element 1.
- the document 18 is designed in the same way as the document described in FIG. 18, with the difference that the first volume hologram changes its color when the document 18 is tilted.
- the first volume hologram which is formed in the first volume hologram layer 13a or in the second volume hologram layer 13b, is visible when the document 18 is viewed vertically in a color F1, for example in green. If the document 18 is tilted about its longitudinal axis, the first volume hologram in a color F2, for example in red, is visible at a certain tilt angle. If the color F3 of the thin-film element 15d is, for example, purple when viewed perpendicularly, then the green first volume hologram in turquoise appears when viewed vertically. If the color F4 of the thin-film element 15d in the tilted state, however, is green or olive green, the red first appears in the tilted state
- FIG. 20 shows a ninth embodiment of one with the
- Security Element 1 Formed Document 18.
- the document 18 is designed like the document described in FIG. 18, with the difference that it shows different optical effects in three different tilt angles.
- a first volume hologram having a first motif 14a and a color F1 formed in the first volume hologram layer 13a is visible in a first position when the document 18 is viewed perpendicularly. If the document 18 is tilted, a second volume hologram with a second motif 14b and a color F2 in a second position is visible at a certain tilt angle. The second volume hologram may be formed in the first volume hologram layer 13a or in the second volume hologram layer 13b. If the document 18 is tilted further, a third volume hologram with a third motif 14c and a color F3 in a third position is visible at a larger tilt angle. The third
- Volume hologram may be in the first volume hologram layer 13a, in the second volume hologram layer 13b or in a third
- Volume hologram layer 13c be formed.
- the three volume holograms may have the same color as shown in Fig. 20, but they may also have different colors. Is the color F4 of the
- Thin-film element 15d when viewed perpendicularly, for example purple, a green first volume hologram in turquoise appears. When tilting by a certain angle, the thin-film element 15d appears in a color F5, for example in brown. As a result, for example, a green second volume hologram appears in ocher. Is the color F6 of the
- FIG. 21 shows a fifth embodiment of the security element.
- a security element 1 is as described above in FIG. 17
- Background layer has a mask layer 15m, which has a metal layer 20 deposited with a fourth intermediate layer 17d.
- the metallic layer 20 may be formed over the whole area or, as shown in FIG. 21, only in partial areas.
- the metallic layer 20 is preferably made of aluminum, copper, gold, silver, chromium, tin or an alloy of these materials and has a thickness of 0.1 nm to 1000 nm, preferably from 5 nm to 100 nm.
- the metallic layer 20 preferably coated over the entire surface with a metal or a metallic alloy and then the metal or the metallic alloy subsequently removed again in regions, for example by positive / negative etching or by ablation.
- the metallic layer 20 it is also possible for the metallic layer 20 to be applied to the optional third intermediate layer 17c or the second volume hologram layer 13b in regions only in certain regions and under certain circumstances, for example by means of vapor deposition masks.
- the metallic layer 20 is disposed after the application of the security element 1 on a document below the volume hologram layers 13a and 13b and may on the one hand cause the surface of the document is covered and thereby the overlying volume holograms not on the color and shape of any pressure on superimposed on the document.
- the visibility of the volume holograms may increase increase because the metallic layer 20 is dark when tilting the document 18 outside the mirror reflex.
- FIG. 22 shows a sixth embodiment of the security element.
- a security element 1 is designed like the security element described in FIG. 17, with the difference that the background layer is used as a security element
- Absorption layer 15a is formed.
- the absorption layer 15a is formed in FIG. 22 as a dielectric filter of four layers, comprising a first filter layer 21a, a second filter layer 21b, a third filter layer 21c and a fourth filter layer 21d. In that shown in Fig. 22
- Embodiment is between the adhesive layer 16 and the
- Absorption layer 15a a fourth intermediate layer 17d arranged.
- the absorption layer 15a may be formed over the entire surface or even in partial areas. In the classical sense, these are not
- tunable Fabry-Perot interferometers consisting of, for example, a semitransparent metallic mirror layer (e.g., aluminum or silver) followed by a thin dielectric and transparent layer and a second mirror layer (multiple interference filter).
- Layer thickness of the dielectric layer determines which wavelengths are absorbed.
- dielectric filters that are constructed without reflection layers solely from dielectric (non-metallic) layers, so-called dielectric filters.
- layers of two different transparent materials with different refractive indices alternate, whereby a different layer-to-layer thickness may be required.
- the thicknesses of the individual layers are between about 10 and 1000 nm.
- the number of layers can ever according to requirements of the filter between a few and several hundred lie.
- materials for example, S1O2, ZnS or ⁇ 2 are used which have different refractive indices.
- the absorption layer 15a is preferably applied over the entire area to the optional third intermediate layer 17c or the second volume hologram layer 13b, and then the
- the absorption layer 15a is also possible for the optional third intermediate layer 17c or the second volume hologram layer 13b in regions only in certain regions and possibly under pattern conditions.
- the absorption layer 15a is arranged on a document below the volume hologram layers 13a and 13b and can on the one hand cause the surface of the document to be covered and thereby prevent the overlying volume holograms from being at least partially unaffected by the color and shape of any pressure superimposed on the document.
- the visibility of the volume holograms may increase because the absorption layer 21 absorbs the incident light at least in certain wavelength ranges.
- FIG. 23 shows a seventh embodiment of the security element.
- a security element 1 is designed like the security element described in FIG. 17, with the difference that the background layer is used as a security element
- Microstructure layer 15s is formed, which is formed as a replication layer third intermediate layer 17c and one on a Surface microstructure of the intermediate layer 17 c applied metallic layer 20 has.
- the formed as a replication layer third intermediate layer 17c may be formed of a thermoplastic material, in the upper side regions are formed with a surface microstructure.
- Surface microstructure may be formed, for example, as a linear or crossed sine grating, an asymmetric blazed grating, an isotropic or anisotropic matte structure, a lens structure or combinations of the above structures or as a surface hologram.
- the sine gratings have periods in a range from 0.2 ⁇ m to 10 ⁇ m, preferably in a range from 0.5 ⁇ m to 2.0 ⁇ m, and depths in a range from 30 nm to 5000 nm, preferably in a range of 80 nm up to 300 nm, up.
- the metallic layer 20 may be formed over the whole area, as shown in FIG. 23, or only in partial areas.
- the metallic layer 20 is made
- the third intermediate layer 17c is preferably coated over the entire surface with a metal or a metallic alloy and then the metal or the metallic alloy subsequently removed again in regions, for example by positive / negative etching or by ablation. Further, it is also possible that the metallic layer 20 only
- the microstructure layer 15s is arranged after the application of the security element 1 on a document below the volume hologram layers 13a and 13b and on the one hand, that the surface of the document is covered and thereby the overlying volume holograms at least in the metallized areas not the color and shape of a any printed image on the document are superimposed.
- the visibility of the volume holograms increases since the metallic layer 20 darkens when the document is tilted outside the mirror reflex.
- Volumenhologrammtiken 13a and 13b formed volume holograms and formed in the microstructure layer 15s metallized
- FIG. 24 shows an eighth embodiment of the security element.
- the HRI layer 22 may be formed of ZnS, for example, and cover the entire surface of the surface structure of the third intermediate layer 17c formed as a replication layer.
- the HRI layer 22 is nearly transparent in the visible spectral range above 500 nm.
- the microstructure layer 15s formed from the third intermediate layer 17c and the HRI layer 22 is arranged after application of the security feature 1 on a document below the volume hologram layers 13a and 13b and, on the one hand, causes a surface hologram formed in the third intermediate layer 17c to be visible under the volume holograms and that any printed image remains visible on the document.
- FIG. 25 shows a ninth embodiment of the security element.
- a security element 1 is as described above in FIG.
- Intermediate layer 17d, a metallic layer 20 and an optional fifth intermediate layer 17e has. On the fifth intermediate layer 17e, the adhesive layer 16 is arranged.
- the ink layer 15f is applied to the optional third intermediate layer 17c or directly to the second volume hologram layer 13b by the usual printing or coating methods. Thereafter, the fourth intermediate layer 17d and the metallic layer 20 over the entire surface, as shown in Fig. 25, or partially applied.
- the color layer 15f and the metallic layer 20 are after the application of the security element 1 to a document below the
- Volume hologram layers 13a and 13b arranged and can cause the fact that the surface of the document is covered and thereby the overlying volume holograms are not superimposed by the color and shape of any pressure on the document.
- the visibility of the volume holograms may increase since the color layer 15f absorbs light, particularly in dark colors, and the metallic layer 20 darkens when the document is tilted outside the mirror reflex. Due to the partial pressure of the ink layer 15f, however, the metallization is not completely visible, in particular when using dark colors, which corresponds to a demetallizing effect.
- any printed image on the document can be placed in the
- the color layer 15f and the metallization 20 may be particularly clearly visible in the viewing or lighting situations in which the overlying volume holograms are not or hardly visible.
- Fig. 26 shows a tenth embodiment of the security element.
- a security element 1 is formed like the security element described in FIG. 25, with the difference that the fourth intermediate layer 17d is formed as a replication layer into which a surface relief is molded, as described above in FIG.
- the on the fourth intermediate layer 17d applied metallic layer 20 may be over the entire surface or, as shown in Fig. 26, partially formed.
- the ink layer 15f is applied to the optional third by the usual printing or coating methods (eg gravure printing, screen printing, flexographic printing, ink jet printing)
- the color layer 15f and the metallized fourth intermediate layer 17d are arranged after the application of the security element 1 on a document below the volume hologram layers 13a and 13b and form three different substrates below the volume hologram layers 13a and 13b.
- the surface of the document is covered in particular when using dark colors.
- the overlying volume holograms are not overlaid by the color and shape of any print on the document, and the volume holograms are more visible.
- Fig. 27 shows an eleventh embodiment of the security element.
- a security element 1 is designed like the security element described in FIG. 4, with the difference that the background layer is formed as a fluorescent layer 15fl.
- the fluorescent layer 15fl may be formed over the entire surface or in regions.
- the fluorescent layer 15fl is made of a lacquer in a thiophene
- Benzoaxol derivative formed dissolved fluorescent organic and inorganic pigments.
- the fluorescent layer 15fl is used with the usual
- Printing process for example gravure printing, screen printing, flexo printing,
- the layer thickness is after the
- Drying preferably between 0.1 ⁇ and 6 ⁇ .
- the fluorescent layer 15fl is arranged after the application of the security element 1 on a document below the volume hologram layers 13a and 13b. While the fluorescent layer 15fl when irradiated with
- Fig. 28 shows a twelfth embodiment of the security element.
- a security element 1 is designed like the security element described in FIG. 27, with the difference that a phosphorescent layer 15p is provided instead of the fluorescent layer.
- the phosphorescent layer 15p may be formed over the entire surface or in regions.
- the phosphorescent layer 15p is applied with the usual printing methods, for example intaglio, screen printing, flexographic printing, inkjet printing or other coating methods over the entire surface or partially in decorative printing.
- the phosphorescent layer 15p is after application of the
- Volume hologram layers 13a and 13b arranged. While the
- Phosphorescent layer 15p when exposed to daylight, due to the inherent color of the phosphorescent pigments, appears in shades of gray, it shines in color when irradiated with UV light.
- the overlying volume holograms can be better visible and / or by overlaying the volume holograms can appear in a different hue. This is of particular interest because, unlike fluorescent pigments, the phosphorescent pigments linger for a certain time, thereby preserving the better visibility of the volume holograms and / or the changed hue of the volume holograms for a certain time after illumination with UV light.
- Fig. 29 shows a thirteenth embodiment of the security element.
- a security element 1 has the following layer structure: On a particular coated or uncoated carrier film 1 1, a first intermediate layer 17a and a second intermediate layer 17b are arranged. The second intermediate layer 17b is a replication layer
- the second intermediate layer 17b may be formed from a thermoplastic material, in whose upper side regions are formed into which relief structures, which are preferably formed as blazed gratings, are formed.
- the Blazegitter have periods in a range of 0.2 ⁇ to 15 ⁇ , preferably in a range of 0.5 ⁇ to 7.0 ⁇ , and depths in a range of 50 nm to 5000 nm, preferably in a range of 100 nm up to 1500 nm, up.
- sinusoidal gratings, matt structures, lens structures, etc. may also be used.
- the metallic layer 20 is, as shown in Fig. 29, formed only in partial areas.
- the metallic layer 20 is preferably made of aluminum, copper, gold, silver, chromium, tin or an alloy of these materials and has a thickness of 0.1 nm to 1000 nm, preferably from 5 nm to 100 nm.
- Intermediate layer 17b is preferably coated over the entire surface with a metal or a metallic alloy and then the metal or the metallic alloy subsequently removed again in regions, for example by positive / negative etching or by ablation. Further, it is also possible that the metallic layer 20 only partially and under certain circumstances
- a layer structure provides a first volume hologram layer 13a, a fourth intermediate layer 17d, a second volume hologram layer 13b, a fifth intermediate layer 17e and finally an adhesive layer 16.
- volume hologram layers 13a and 13b are arranged after the application of the security element 1 on a document below the partially metallized second intermediate layer 17b and are in the
- FIG. 30 A particularly advantageous embodiment of the security element 1 is shown in FIG.
- the security element 1 in FIG. 30 is like that in FIG. 29
- FIG. 31 shows a fifteenth embodiment of the security element.
- a security element 1 is as described above in FIG. 29
- an HRI layer 22 which covers the surface structure of the second intermediate layer 17b over the entire surface, as shown in Fig. 31, or partially covered.
- the HRI layer 22 has a high refractive index and is
- the HRI layer is nearly transparent in the spectral range above about 500 nm.
- volume hologram layers 13a and 13b are arranged after the application of the security element 1 on a document below the second intermediate layer 17b deposited with the transparent HRI layer 22. Depending on the illumination and viewing angle are thus
- Intermediate layer 17b is formed, or the volume holograms, or the surface hologram and the volume holograms simultaneously visible.
- Fig. 32 shows a tenth embodiment of a document 18 formed with the security element 1.
- the document 18 is, for example, a banknote or an identification document.
- Fig. 32 is a first strip-shaped
- Security element 1 is arranged on top of the document 18 and a second security element V is arranged in a window 18 f of the document 18.
- the first security element 1 can not as well
- the first security element 1 is from that described above
- volume hologram foil 1f transferred to the document 18.
- Volume hologram 1f is designed as a transfer film, the carrier film 1 1 after the application of the transfer layer on the document 18 of the
- the volume hologram foil 1f is as Laminating formed, the carrier film 1 1 remains after application as the top layer of the security element 1 on the document 18th
- the window 18f is formed as a transparent area of the document 18 in the embodiment shown in FIG.
- the window 18 may, for example, be a transparent area of a polymer banknote
- the volume hologram foil 1f may be designed for application on the window 18f as a transfer foil or as a laminating foil.
- Visual features in the transparent areas of the document 18 can be designed differently and can be divided into three groups:
- Transmission feature are rarely met, for example, when a banknote is held against the light. Thus, this transmission feature is almost invisible, only in transmission, viewed against a light source, appears information (eg denomination of the banknote).
- a Combination information is a visually interesting and at the same time very forgery-proof feature.
- Fig. 33 shows the general geometrical conditions in the
- a security element 1 which is arranged on a document 18, is illuminated at an angle of incidence ⁇ to the surface of a light source 7 (sun, lamp).
- a volume hologram formed in the security element 1 is in one
- Exit angle ⁇ visible to the surface.
- a viewer 8 person or camera
- d distance from the surface of the document.
- Fig. 34 is an explanatory diagram showing among which
- the x-axis of the diagram shown in FIG. 34 denotes the reflection angle ⁇ , below which the volume hologram is visible.
- the y-axis of the diagram denotes the intensity I of the light emerging under the reflection angle ⁇ .
- the volume hologram is visible under three different viewing angles, which correspond to the three reflection angles ⁇ , ⁇ 2 and ⁇ 3 . This appears at different viewing angles
- volume hologram in different colors. Below the reflection angle ⁇ the volume hologram appears in a first color F1, for example in green, under the reflection angle ⁇ 2 in a second color F2, for example in red and at the reflection angle Y3 in a third color F3,
- the reflection angles ⁇ have a
- Tolerance width ⁇ in which the volume hologram is visible.
- Tolerance width ⁇ is formed symmetrically in the embodiment shown in FIG. 34 about the mean value of the reflection angle ⁇ .
- the tolerance width ⁇ may, for example, be ⁇ 10 ° or only ⁇ 5 ° or even only ⁇ 2 ° about the mean value of the reflection angle ⁇ .
- the intensity and thus the visibility of the respective volume hologram is shown in FIG. 34 by the height of the color curves.
- the first color F1 is most clearly visible, while the second color F2 and the third color F3 are less clearly visible.
- the respective reflection angles ⁇ and the colors F and intensities I of the volume hologram are determined in particular by the diffraction behavior of the volume hologram master, in particular by its surface relief and / or the grating period and / or the azimuth angle and / or the texture depth and / or the thickness of the volume hologram layer and / or the
- Curing process and / or by the parameters of the exposure especially by the exposure wavelength and / or the exposure intensity of the laser radiation and / or the UV radiation and / or by the
- volume holograms it is possible, for example, to shrink the volume hologram layer in regions by means of different curing and / or different after-treatments or to swell, and thus to generate areas in which the volume hologram of the volume hologram layer shows a different color F.
- One or more lasers preferably two lasers, are used to expose the volume hologram layer.
- the volume hologram layer it is possible on the one hand for the volume hologram layer to be exposed at different angles of incidence by the light beams generated by the respective lasers, so that an image area of the volume hologram is generated by each of the lasers, which has a different color value.
- the lasers it is also possible for the lasers to emit light of different wavelengths and thus for the respective laser image areas with different color values in the
- Volume hologram layer are recorded. For example, it is possible to select these parameters such that the
- Volume hologram only in an angular range of +/- 10 °, preferably +/- 5 ° by a single angle ⁇ and appears with a single color F1 or in a narrow color spectrum, but with a relatively high intensity, as shown in Fig. 35.
- Fig. 36 shows the case where the reflection angle ⁇ is smaller than 90 °.
- the volume hologram is visible to the viewer 8 when the document 18 is tilted away from the viewer 8 and when the
- Viewing angle ⁇ and the reflection angle ⁇ are equal or similar.
- Fig. 37 shows the case where the reflection angle ⁇ is larger than 90 °.
- the volume hologram is visible to the viewer 8 when the Document 18 is tilted towards the viewer 8 and when the viewing angle ⁇ and the reflection angle ⁇ are equal or similar.
- Fig. 38 shows the usual way in which the viewer 8 looks perpendicular to the document 18 and therefore the viewing angle ⁇ and the reflection angle ⁇ must be in the range of 90 °, so that the
- Volume hologram is visible.
- Volume hologram layers which are arranged one above the other.
- further layers are present as intermediate layers, the optical ones
- Functionalities for example, full-color or partially existing color layers and / or metal layers and / or diffractive structures or matt structures may have and / or as adhesive layers and / or
- Metal layer e.g., aluminum
- volume hologram master Due to a special design of the volume hologram master,
- FIG. 39 shows an exemplary embodiment in which a first volume hologram with a first color F1 has a very large tolerance range ⁇ , ie an angular range in which the volume hologram is visible.
- a very large tolerance range ⁇ is greater than +/- 45 °, preferably greater than +/- 60 °.
- the tolerance range ⁇ has a value of approximately 160 °.
- the first volume hologram is therefore visible for almost all viewing angles ⁇ between 10 ° and 170 °.
- the first volume hologram is formed in a first volume hologram layer of the security element.
- Tolerance ranges ⁇ are preferably sinusoidal, diffractive gratings whose grating periods, orientation and depth are designed according to the desired holographic effect, for example a movement effect.
- the grating periods vary from 0.3 ⁇ to 3.0 ⁇ , preferably from 0.5 ⁇ to 2.0 ⁇ .
- the grating depths are in the range 50 nm to 400 nm, preferably in the range 100 nm to 200 nm.
- Relief structures with an optical effect similar to a macroscopic concave or convex lens or a macroscopic concave or convex freeform surface can for example
- Grid structures with sinusoidal profiles exist.
- asymmetric lattice structures can also be used.
- the grids are arranged in a circle around a center.
- the grating periods are larger in the center of the lens and smaller at the lens edge and vary from 0.3 ⁇ to 2500 ⁇ , preferably from 0.8 ⁇ to 100 ⁇ .
- the grid depths are in the range of 50 nm to 10 ⁇ m, preferably in the range of 100 nm to 5 ⁇ m.
- Volume holograms visible in a very wide range of angles.
- a second volume hologram with a second color F2 has only a small tolerance range ⁇ 2 , ie the tolerance range ⁇ 2 is less than +/- 10 °, preferably less than +/- 5 °. Consequently, the second is
- the second volume hologram is formed in a second volume hologram layer of the security element.
- the colors F1 and F2 can also be the same.
- the color of a volume hologram is preferred by a
- Peak wavelengths for red volume holograms are in the range of 600 nm to 680 nm, typically 610 nm to 620 nm, and green
- Volume holograms in the range of 520 nm to 560 nm, typically at 535 nm to 545 nm.
- the spectral bandwidths B s are 5 nm to 20 nm, typically 10 nm.
- Surface structures of the volume hologram master are asymmetric surface structures. These are blazed reflective gratings with sawtooth surfaces, for example at a spatial frequency of 100 lines / mm to 2000 lines / mm. It can further be provided that the Blazegitter has a grid depth of 0.1 ⁇ to 2 ⁇ . Blazegitter with the dimensions mentioned above can by thermoplastic deformation, for example with a heated
- the grids of the master may be a mosaic-like juxtaposition of a wide variety of different grids, e.g. Blaze grating with a grating period of about 500 nm to about 1500 nm and a lattice depth between 100 nm and 600 nm with different azimuthal orientations, kinoforms, asymmetric achromatic lattices, matte structures, relief structures with an optical effect similar to a macroscopic concave or convex lens or a macroscopically concave or convex freeform surface, etc. as well
- FIG. 41 shows the construction and operation of a security element 1 according to FIG. 39 with a first volume hologram layer 13a and a second volume hologram layer 13b.
- a first color F1 for example green, is generated in the first volume hologram layer 13a and is visible only in a narrow angular range.
- Fig. 42 shows a surface relief master formed
- a volume hologram master 9 in cross section.
- a volume hologram master 9 has in the embodiment shown in FIG. 42 a first blazed grating 91 ba with a grating period of 1 ⁇ m and a grating depth of 300 nm and a second blaze grating 91 bb with a grating period of 0.78 ⁇ m and a
- Volume hologram masters 9 have a surface relief with a
- Matt structure 91 m which disperses diffuse light diffusely and therefore gives the visual impression of a "black mirror.”
- 91 m matt structure is also the use of a
- the volume hologram master 9 is in this embodiment of a nickel-cobalt alloy
- Fig. 43 shows the principle of manufacturing a volume hologram.
- a volume hologram master 9 is in contact with a support film 1 1 coated with a release layer 17t, a protective layer 17s, an intermediate layer 17 and a photopolymer layer 12.
- the volume hologram master 9 and the coated carrier film 11 are guided along in a feed direction v.
- no release layer 17t is provided.
- the photopolymer layer 12 may be viscous
- Photopolymer layer are applied. It can be provided, a light-weight photopolymer layer during printing or shortly thereafter prebent by means of UV light, so that the optimum viscosity for further processing is set.
- a laser is provided, which is directed towards the surface relief master 9
- Laser beam 71 emits.
- the angle at which the laser beam 71 impinges can be optimized by experiments and, for example, be 14 ° to the vertical.
- the volume hologram master 9 may be applied to a cylinder and therefore used in the curved state.
- FIG. 44 shows an eleventh embodiment of a document 18 formed with the security element 1.
- the security element 1 has a first volume hologram with an over the entire surface of the
- Security elements 1 extended first motif 14a and a color F1, which is visible from many viewing angles, that is, both when tilting about the longitudinal axis of the document 18 and when pivoting about the transverse axis of the document 18. are preferred for the first
- Volume hologram optical effects similar to a macroscopic concave or convex lens or a macroscopically concave or convex freeform surface e.g. large single-lens structures or repetitive patterns of small lens structures or other optical effects
- Free-form surfaces which visually create a concave or convex curvature effect, used, since they are visible from almost all viewing directions. Due to the rotational symmetry of ordinary lens effects, the lens effects mentioned above can cover the complete azimuth range (angular range perpendicular to the plane of incidence) at viewing angles (0-360 °).
- Cross lattice structures (with a screen ruling below the resolution limit of the human eye), which cover a larger azimuth range and a larger Tiltwinkel Scheme.
- a grid with a pixel size of 10 ⁇ x 10 ⁇ be used.
- 64 different grid structures would be screened into each other, which allow to cover a wide azimuth / Tiltwinkel Scheme for the visibility of the feature, the pixels are not resolvable with the naked eye.
- a second volume hologram with a second motif 14b and a color F2 is formed so that it is visible only in a certain angular range or in a few discrete angular ranges.
- the second motif 14b can be a single image or an endless motif.
- the second motif 14b is formed as a single image.
- the first and second volume holograms may be in the same Volume hologram layer, but preferably in two different
- Volume hologram layers may be formed.
- Fig. 45 shows a twelfth embodiment of a with the
- Security element 1 formed document 18, which is designed like the document 18 described in FIG. 39, with the difference that the second volume hologram as a 2-flicker with a second motif 14b in a color F2 and a third motif 14c in a Color F3 is formed.
- the second motif 14b appears, for example the letter "A"
- the third motif appears, for example the letter "B”.
- the second motif 14b and the third motif 14c are each visible only in a specific, narrow angular range. When tilting and in the middle position, however, only the first volume hologram 14a is visible.
- the first and second volume holograms may be in the same volume hologram layer, but preferably in two
- Fig. 46 shows a thirteenth embodiment of one with the
- Security element 1 formed document 18, which is designed as the document 18 described in FIG. 45, with the difference that the second motif 14b and the third motif 14c are formed in the second volume hologram so that when tilting the document 18 away from the viewer second motif 14b, for example, the letter "A" appears, and when tilting towards the viewer, the third motif 14c, for example, the letter "B" appears.
- the first and second volume holograms may be in the same volume hologram layer, but preferably in two
- FIG. 47 shows a fourteenth embodiment of the present invention
- the second motif 14b appears, for example the letter "A”
- the third motif 14c for example the letter "B”
- the fourth motif 14d appears, for example the letter "C”.
- the motifs 14b to 14d are each visible only in a specific, narrow angular range.On tilting away from the observer or toward the observer, only the first motif 14a is visible in each case
- the first and the second volume hologram can be in the same volume hologram layer, but preferably in two different volume hologram layers be educated.
- FIG. 48 shows a fifteenth embodiment of the present invention
- Security element 1 trained document 18 which is designed as the document 18 described in FIG. 46, with the difference that when tilting the document 18 away from the viewer, the second motif 14b, for example, the letter "A" appears, in the middle position, the third motif 14c, for example, the letter "B" appears, and when tilting to
- the fourth motif 14d for example the letter "C", appears, and the motifs 14b to 14d are only visible in a specific, narrow angle range.
- the first motif 14a is visible second volume hologram may be formed in the same volume hologram layer, but preferably in two different volume hologram layers.
- FIG. 49 shows a sixteenth embodiment of the present invention
- the first volume hologram is formed with a first motif 14a as a two-color volume hologram having a color F1 and a color F2.
- the first volume hologram is again below almost all
- the second volume hologram having a second motif 14b is also formed as a two-color volume hologram having a color F3 and a color F4. Again, the second volume hologram is only in one particular or a few discrete ones
- the second motif 14b can be a single image or an endless motif. In the embodiment shown in FIG. 49, the second motif 14b is formed as a single image.
- the first and second volume holograms may be in the same volume hologram layer, but preferably in two different ones
- Volume hologram layers may be formed.
- Fig. 50 shows a seventeenth embodiment of one with the
- Both the first volume hologram with a first motif 14a and a color F1 and the second volume hologram with a second motif 14b and a color F2 are at almost all viewing angles, that is, both when tilting and when pivoting the document 18 as well as in the middle position, visible. Preferred are for the first and the second
- volume hologram the lens effects described above, e.g. size
- the first and second volume holograms may be formed in the same volume hologram layer, but preferably in two different volume hologram layers.
- FIG. 51 shows an eighteenth embodiment of the present invention
- a first volume hologram with a first motif 14a and a color F1 is only visible when the document 18 is pivoted to the left about its transverse axis.
- the first motif 14a is formed as a single image with the letter "K"
- a second volume hologram having a second motif 14b and a color F2 is visible only when the document 18 is rotated to the right
- the second motif 14b is an endless design with the numbers "100" trained.
- the two motifs 14a and 14b are only in one
- the colors F1 and F2 may be different or identical.
- Volume holograms may be formed in the same volume hologram layer, but preferably in two different volume hologram layers.
- FIG. 52 shows a nineteenth embodiment of the present invention
- the document 18 is formed like the document shown in Fig. 51, except that the first motif 14a is formed as an endless design with the letter "K.”
- the first and second volume holograms may be in the same
- Volume hologram layer but preferably be formed in two different volume hologram layers.
- Fig. 53 shows a twentieth embodiment of the present invention
- the document 18 is designed like the document shown in FIG. 51, with the difference that both the first motif 14a and the second motif 14b are formed as a single image.
- the first and second volume holograms may be in the same volume hologram layer, but preferably in two
- FIG. 54 shows a twenty-first embodiment of a document formed with the security element 1.
- the document 18 is designed like the document shown in Fig. 51, with the difference that when the document 18 is viewed in the middle position, both motifs 14a and 14b are simultaneously visible.
- the colors of the volume holograms F1 and F2 are preferably chosen differently.
- the first and second volume holograms may be formed in the same volume hologram layer, but preferably in two different volume hologram layers.
- Fig. 55 shows a twenty-second embodiment of a document formed with the security element 1.
- the document 18 is like that 54, with the difference that the first motif 14a is formed not as a single image but as an endless design.
- FIG. 56 shows a twenty-third embodiment of the present invention
- FIG. 57 shows a twenty-fourth embodiment of the present invention
- the document 18 is designed like the document shown in FIG. 51, with the difference that the first motif 14a is visible when the document 18 is viewed perpendicularly in the transverse position, and that the second motif 14b when viewed vertically and rotated by the document 18 by a certain angle, in FIG. 57, for example, by 90 °, is visible in the high position. Both motifs 14a and 14b are visible only in a relatively narrow rotation angle range of about 20 °, so that a clear separation of the motifs takes place.
- the first and the second motif can be in the same
- Volume hologram layer but preferably be formed in two different volume hologram layers.
- FIG. 58 shows a twenty-fifth embodiment of a document formed with the security element 1.
- the document 18 is designed like the document shown in FIG. 57, with the difference that the first motif 14a is formed not as a single image but as an endless design.
- Fig. 59 shows a twenty-sixth embodiment of a document formed with the security element 1.
- the document 18 is designed like the document shown in FIG. 57, with the difference that both the first motif 14a and the second motif 14b are formed as a single image.
- FIG. 60 shows a twenty-seventh embodiment of a document formed with the security element 1.
- the document 18 is designed like the document shown in FIG. 57, with the difference that the first motif 14a is visible when the document 18 is viewed perpendicularly in a first transverse position, and that the second motif 14b when viewed vertically and rotated by 180.degree ° is visible in a second transverse position. Both motifs 14a and 14b are visible only in a relatively narrow rotation angle range of about 20 °, so that a clear separation of the motifs takes place.
- the first and the second motif may be in the same volume hologram layer, but preferably in two
- Fig. 61 shows a twenty-eighth embodiment of a document formed with the security element 1.
- the document 18 is designed like the document shown in FIG. 60, with the difference that the first motif 14a is formed not as a single image but as an endless design.
- Fig. 62 shows a twenty-ninth embodiment of a document formed with the security element 1.
- the document 18 is designed like the document shown in FIG. 61, with the difference that both the first motif 14a and the second motif 14b are formed as a single image.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17722412.8A EP3465351A1 (de) | 2016-05-25 | 2017-05-02 | Verfahren zur herstellung einer volumenhologrammfolie mit als übertragungsabschnitte ausgebildeten sicherheitselementen |
US16/302,766 US20200319590A1 (en) | 2016-05-25 | 2017-05-02 | Method for Producing a Volume Hologram Film Having Security Elements Formed as Transfer Sections |
AU2017271232A AU2017271232B2 (en) | 2016-05-25 | 2017-05-02 | Method for producing a volume hologram film having security elements formed as transfer sections |
JP2018561708A JP2019522813A (ja) | 2016-05-25 | 2017-05-02 | 転写部として形成されたセキュリティエレメントを有する体積ホログラムフィルムの製造方法 |
CN201780031949.XA CN109154792B (zh) | 2016-05-25 | 2017-05-02 | 生产具有形成为转移部分的安全元件的体积全息膜的方法 |
IL263169A IL263169B2 (en) | 2016-05-25 | 2018-11-21 | Method for manufacturing a volume hologram layer with safety components manufactured as transition sections |
AU2022200203A AU2022200203A1 (en) | 2016-05-25 | 2022-01-13 | Method for producing a volume hologram film having security elements formed as transfer sections |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102016109633.4 | 2016-05-25 | ||
DE102016109633.4A DE102016109633B4 (de) | 2016-05-25 | 2016-05-25 | Verfahren zur Herstellung einer Volumenhologrammfolie mit als Übertragungsabschnitte ausgebildeten Sicherheitselementen |
Publications (1)
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WO2017202578A1 true WO2017202578A1 (de) | 2017-11-30 |
Family
ID=58692480
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PCT/EP2017/060426 WO2017202578A1 (de) | 2016-05-25 | 2017-05-02 | Verfahren zur herstellung einer volumenhologrammfolie mit als übertragungsabschnitte ausgebildeten sicherheitselementen |
Country Status (8)
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US (1) | US20200319590A1 (de) |
EP (1) | EP3465351A1 (de) |
JP (1) | JP2019522813A (de) |
CN (1) | CN109154792B (de) |
AU (2) | AU2017271232B2 (de) |
DE (1) | DE102016109633B4 (de) |
IL (1) | IL263169B2 (de) |
WO (1) | WO2017202578A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP4043230A1 (de) * | 2021-02-12 | 2022-08-17 | Bundesdruckerei GmbH | Dokument mit volumenhologramm und verfahren zur dessen herstellung |
Families Citing this family (2)
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DE102017106721A1 (de) * | 2017-03-29 | 2018-10-04 | Leonhard Kurz Stiftung & Co. Kg | Verfahren zum Herstellen einer Mehrschichtfolie und eine Mehrschichtfolie sowie ein Sicherheitselement und ein Sicherheitsdokument |
CN109901258A (zh) * | 2019-04-04 | 2019-06-18 | 湖南大学 | 一种全彩色全息的微纳集成器件及其制作方法 |
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JPS59154482A (ja) * | 1983-02-23 | 1984-09-03 | Dainippon Printing Co Ltd | ホログラムおよびその製作方法 |
US5162927A (en) * | 1988-06-15 | 1992-11-10 | Hughes Aircraft Company | High efficiency holograms by multiple-layer holography |
EP0516173A2 (de) * | 1991-05-31 | 1992-12-02 | Hughes Aircraft Company | Mehrschichtige Hologramme |
US20020174790A1 (en) | 2001-03-06 | 2002-11-28 | Dai Nippon Printing Co., Ltd. | Method for image formation and intermediate transfer recording medium |
US9321294B2 (en) * | 2012-01-23 | 2016-04-26 | Leonhard Kurz Stiftung & Co. Kg | Security document and method for producing a security document |
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JPH1164636A (ja) * | 1997-08-12 | 1999-03-05 | Fuji Xerox Co Ltd | 反射板、反射板製造方法および反射型カラー表示装置 |
FR2826135B1 (fr) | 2001-06-15 | 2003-08-08 | Thales Sa | Procede de realisation en serie de documents securises et machine de mise en oeuvre |
CZ20041001A3 (cs) * | 2002-04-03 | 2005-03-16 | De La Rue International Limited | Opticky proměnlivý ochranný prvek a způsob jeho výroby |
DE102007059747A1 (de) * | 2007-12-07 | 2009-06-10 | Bundesdruckerei Gmbh | Polymerschichtverbund für ein Sicherheits- und/oder Wertdokument |
DE102008017652A1 (de) * | 2008-04-04 | 2009-10-08 | Leonhard Kurz Stiftung & Co. Kg | Sicherheitselement sowie Verfahren zur Herstellung eines Sicherheitselements |
JP5428463B2 (ja) * | 2009-03-30 | 2014-02-26 | 大日本印刷株式会社 | 色彩可変機能付き真偽判定体 |
JP2012242409A (ja) * | 2011-05-16 | 2012-12-10 | Dainippon Printing Co Ltd | ホログラムシート |
JP6053932B2 (ja) * | 2012-08-17 | 2016-12-27 | ビジュアル フィジクス エルエルシー | 微細構造を最終基板に転写するプロセス |
DE102014102354A1 (de) | 2014-02-24 | 2015-08-27 | Bundesdruckerei Gmbh | Holografisches Verbundelement sowie Verfahren zu seiner Herstellung |
DE102014106340B4 (de) * | 2014-05-07 | 2021-05-12 | Ovd Kinegram Ag | Mehrschichtkörper und Verfahren zu dessen Herstellung sowie Sicherheitsdokument |
-
2016
- 2016-05-25 DE DE102016109633.4A patent/DE102016109633B4/de active Active
-
2017
- 2017-05-02 CN CN201780031949.XA patent/CN109154792B/zh not_active Expired - Fee Related
- 2017-05-02 AU AU2017271232A patent/AU2017271232B2/en not_active Expired - Fee Related
- 2017-05-02 JP JP2018561708A patent/JP2019522813A/ja active Pending
- 2017-05-02 EP EP17722412.8A patent/EP3465351A1/de active Pending
- 2017-05-02 US US16/302,766 patent/US20200319590A1/en not_active Abandoned
- 2017-05-02 WO PCT/EP2017/060426 patent/WO2017202578A1/de unknown
-
2018
- 2018-11-21 IL IL263169A patent/IL263169B2/en unknown
-
2022
- 2022-01-13 AU AU2022200203A patent/AU2022200203A1/en not_active Abandoned
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JPS59154482A (ja) * | 1983-02-23 | 1984-09-03 | Dainippon Printing Co Ltd | ホログラムおよびその製作方法 |
US5162927A (en) * | 1988-06-15 | 1992-11-10 | Hughes Aircraft Company | High efficiency holograms by multiple-layer holography |
EP0516173A2 (de) * | 1991-05-31 | 1992-12-02 | Hughes Aircraft Company | Mehrschichtige Hologramme |
US20020174790A1 (en) | 2001-03-06 | 2002-11-28 | Dai Nippon Printing Co., Ltd. | Method for image formation and intermediate transfer recording medium |
US9321294B2 (en) * | 2012-01-23 | 2016-04-26 | Leonhard Kurz Stiftung & Co. Kg | Security document and method for producing a security document |
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EP4043230A1 (de) * | 2021-02-12 | 2022-08-17 | Bundesdruckerei GmbH | Dokument mit volumenhologramm und verfahren zur dessen herstellung |
Also Published As
Publication number | Publication date |
---|---|
CN109154792B (zh) | 2021-08-10 |
IL263169B2 (en) | 2023-03-01 |
DE102016109633B4 (de) | 2022-12-29 |
AU2017271232B2 (en) | 2021-10-14 |
EP3465351A1 (de) | 2019-04-10 |
US20200319590A1 (en) | 2020-10-08 |
CN109154792A (zh) | 2019-01-04 |
IL263169B (en) | 2022-11-01 |
AU2022200203A1 (en) | 2022-02-24 |
DE102016109633A1 (de) | 2017-11-30 |
IL263169A (en) | 2018-12-31 |
JP2019522813A (ja) | 2019-08-15 |
AU2017271232A1 (en) | 2018-11-22 |
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