+

WO1992016880A1 - Hologrammes - Google Patents

Hologrammes Download PDF

Info

Publication number
WO1992016880A1
WO1992016880A1 PCT/GB1992/000453 GB9200453W WO9216880A1 WO 1992016880 A1 WO1992016880 A1 WO 1992016880A1 GB 9200453 W GB9200453 W GB 9200453W WO 9216880 A1 WO9216880 A1 WO 9216880A1
Authority
WO
WIPO (PCT)
Prior art keywords
photosensitive material
image
light beam
region
hologram
Prior art date
Application number
PCT/GB1992/000453
Other languages
English (en)
Inventor
Simon Charles Webster
Original Assignee
Gec-Marconi Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gec-Marconi Limited filed Critical Gec-Marconi Limited
Publication of WO1992016880A1 publication Critical patent/WO1992016880A1/fr

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/0402—Recording geometries or arrangements
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/0005—Adaptation of holography to specific applications
    • G03H1/0011—Adaptation of holography to specific applications for security or authentication
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/0402—Recording geometries or arrangements
    • G03H1/0406—Image plane or focused image holograms, i.e. an image of the object or holobject is formed on, in or across the recording plane
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H2001/0204—Object characteristics
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H2001/0208—Individual components other than the hologram
    • G03H2001/0224—Active addressable light modulator, i.e. Spatial Light Modulator [SLM]
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/0402—Recording geometries or arrangements
    • G03H2001/0413—Recording geometries or arrangements for recording transmission holograms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/0402—Recording geometries or arrangements
    • G03H2001/0415—Recording geometries or arrangements for recording reflection holograms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/0402—Recording geometries or arrangements
    • G03H2001/0415—Recording geometries or arrangements for recording reflection holograms
    • G03H2001/0417—Recording geometries or arrangements for recording reflection holograms for recording single beam Lippmann hologram wherein the object is illuminated by reference beam passing through the recording material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/0402—Recording geometries or arrangements
    • G03H2001/0419—Recording geometries or arrangements for recording combined transmission and reflection holograms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/22—Processes or apparatus for obtaining an optical image from holograms
    • G03H1/2202—Reconstruction geometries or arrangements
    • G03H2001/2223—Particular relationship between light source, hologram and observer
    • G03H2001/2228—Particular relationship between light source, hologram and observer adapted for reflection and transmission reconstruction
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/20—2D object
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/20—2D object
    • G03H2210/22—2D SLM object wherein the object beam is formed of the light modulated by the SLM
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/30—3D object
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/30—3D object
    • G03H2210/32—3D+2D, i.e. composition of 3D and 2D sub-objects, e.g. scene in front of planar background
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/30—3D object
    • G03H2210/33—3D/2D, i.e. the object is formed of stratified 2D planes, e.g. tomographic data
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/50—Nature of the object
    • G03H2210/54—For individualisation of product
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/50—Nature of the object
    • G03H2210/56—Multiple objects, e.g. each in different environment
    • G03H2210/562—Holographic object, i.e. a combination of an object and holobject
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2223/00—Optical components
    • G03H2223/14—Diffuser, e.g. lens array, random phase mask
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2227/00—Mechanical components or mechanical aspects not otherwise provided for
    • G03H2227/04—Production line for mass production
    • 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
    • G03H2270/00—Substrate bearing the hologram
    • G03H2270/20—Shape
    • G03H2270/23—Ribbon shaped, e.g. holographic foil

Definitions

  • This invention relates to the mass production of holograms for security purposes.
  • holograms are used for authentication purposes and to discourage counterfeiting of, and/or unauthorised tampering with, the cards, labels, etc.
  • the holograms for such purposes are generally mass-produced by a process wherein, for example, a master surface-relief hologram of an object is produced, and this master is used to emboss reflection holograms into metal foil forming at least part of, or to be affixed to, the card, label etc.
  • the production of the die bearing the master hologram can be time-consuming and expensive.
  • all of the copy holograms produced by such a die are identical.
  • a process for producing security holograms wherein regions of photosensitive material are fed in turn through an exposure station; and wherein at said station a respective unique hologram is formed in each region by interference between a reference coherent light beam and a coherent light beam bearing an image.
  • Figures 1-8 are schematic side views illustrating respective different methods of mass-producing security holograms in accordance with the invention.
  • a coherent light beam 6 is passed through a photographic slide 7, or other transparency, which carries an image from which the hologram is to be formed, so that an object beam 8 bearing the image impinges on the photosensitive medium 1.
  • a reference coherent beam 9 is directed upwards through the conveyor 4 and through the photosensitive medium and interferes with the object beam 8, producing a holographic record on the medium.
  • One or more additional reference coherent beams 10 may also be used, if required.
  • the piece 1 of photosensitive medium is then moved onward from the exposure station 5 to a developing and fixing station (not shown) and the piece 2 is moved to the exposure station.
  • the transparency 7 is then changed, so that the hologram produced on the piece 2 is different from that on piece 1.
  • Figure 2 shows an alternative method in which the coherent light 6 is passed through a diffuser 11 and then through an updatable transmissive display 12, such as liquid crystal display. Due to the ability to update the display, the hologram is of an arbitrary nature. It is changed, from piece to piece of the photosensitive medium, by addressing the cells of the display 12 differently for each exposure so that each hologram is unique. As in Figure 1, the reference coherent beam 9, and the beam 10 if required, are directed upwards through the conveyor 4 and on to the photosensitive material.
  • a lens 13 is located between the display 12 (or a transparency in place of the display) and the photosensitive material, so that data items on the display or transparency are focused on to, or near, the plane of the material, and a clear holographic record of the Items is thereby produced.
  • the items are changed from piece to piece of photosensitive material by changing the addressing of the display cells or by using a different transparency for each piece.
  • the photosensitive material 14,15,16 is associated with a reflective backing layer 17.
  • the layer 17 may be attached to the material or may form part of the conveyor 4.
  • the reference beam 9 is directed on to the material from above, passes through the material a first time, is reflected by the backing layer 17, passes a second time through the photosensitive material and emerges therefrom.
  • the object beam 8 interferes with the reference beam during its first pass through the material, thereby forming a transmission hologram. It also interferes during the second pass, and a second interference grating is superimposed on the first and is viewable as a reflection hologram.
  • the method of the present embodiment can be effected entirely from the front side of the material.
  • An opaque conveyer 4 can therefore be used, and the production of the hologram can, if required, be carried out after the photosensitive material has been affixed to a product, if the reflective backing layer 17 is attached to the photosensitive material.
  • the object beam 8 can be produced by any of the previously-described methods.
  • a single coherent beam 18 passes upwards through the transparent conveyor 4 and through the photosensitive material 1.
  • the beam is reflected from a reflective diffusing updatable display 19, such as a reflective liquid crystal display, and returns to the photosensitive material as the object beam 20.
  • the beam 20 interferes with the input beam 18 and the required hologram is thereby produced.
  • the single coherent input beam therefore provides both the reference beam and the object beam.
  • This method is based on the so-called Denisyuk (or Lippmann) hologram.
  • Figure 6 shows an embodiment similar to that of Figure 5, but in which the single coherent reference beam 18 passes through the conveyor 4 and the photosensitive material 1 and then through an updatable transmissive (e.g. liquid crystal) display 21. It is then reflected from an object 22, so that the object beam 23 carries both the updatable information from the display 21 and fixed information from the object 22.
  • an updatable transmissive e.g. liquid crystal
  • Figure 7 shows another embodiment in which the reference beam 9 passes through the conveyor 4 and into the photosensitive material 1.
  • a coherent beam 6 passes through a diffuser 11, through a static transmissive display 24 and through an updatable display 25 to produce an object beam 26. This interferes with the beam 9 to produce the required holographic recording on the material 1.
  • a coherent beam 27 is passed through a pre-existing master hologram 28.
  • the resulting beam 29 is passed through an updatable (e.g. liquid crystal) display 30 to produce an object beam 31. This interferes with the reference beam 9 (and the beam 10, if used) to produce the output hologram at the photosensitive material 1.
  • the light source or sources for exposing the photosensitive material may produce continuous light for the whole of the exposure period. If that is the case, the pieces 1,2,3... of photosensitive material.must be moved into place at the exposure station by the conveyor and then held stationary during the exposure period.
  • the light source(s) may be pulsed. If the pulses are sufficiently short, the conveyor may move the photosensitive material continuously during exposure.
  • a continuous web of material might be used, the web being fed to a guillotine (not shown) for cutting it into pieces, each bearing a unique hologram.
  • the photosensitive material may be any of a number of types, including silver halide emulsion, a photopolymer material, a liquid crystal polymer or a photochromic material.
  • the material might be sensitised for recording at the wavelength of the light source(s) by inclusion of, for example, an absorbing dye therein.
  • the material could be deposited directly on the product, credit card, etc., which is to be marked, or might be deposited on a suitable substrate material.
  • Deposition of the photosensitive material may be effected by, for example, dipping the substrate into a liquid form of the photoconductive material, by spin coating the substrate or by screen printing.
  • each image may be provided on a transparency, such as a photographic slide, or an updatable transmissive display, such as a liquid crystal display or a spatial light modulator; in the form of an updatable reflecting two-dimensional device, such as a photographic print, a reflecting display (e.g. a liquid-crystal display) or a reflecting spatial light modulator; in the form of a three-dimensional object; or in the form of one or more pre-existing holograms.
  • a transparency such as a photographic slide, or an updatable transmissive display, such as a liquid crystal display or a spatial light modulator
  • an updatable reflecting two-dimensional device such as a photographic print
  • a reflecting display e.g. a liquid-crystal display
  • a reflecting spatial light modulator in the form of a three-dimensional object
  • pre-existing holograms in the form of one or more pre-existing holograms.
  • each hologram is unique or quasi-unique.
  • the apparatus can be made to effect this changing of the hologram automatically as each hologram is produced.
  • Each product, credit card, etc. bearing such hologram is, therefore, "fingerprinted", which lends authenticity to it and makes counterfeiting more difficult.
  • the holographic nature of the label, etc. would be more discouraging to potential counterfeiters than would a normally-printed image.
  • variable data Items such as batch numbers, incremented serial numbers, owner codes, sell-by dates, etc.
  • This holographic recording will clearly provide added security for the recorded data.
  • Each hologram thus produced is usable by itself on a product, credit card, etc. as a security device, i .e. only one such hologram per article is needed.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Holo Graphy (AREA)

Abstract

Dans un procédé de production en série d'hologrammes utilisés dans des applications de sécurité, des zones (1, 2, 3 ...) d'une matière photosensible sont placées séquentiellement dans une position d'exposition (5) où un hologramme de type unique est formé dans chaque zone par interférence entre un faisceau de lumière cohérente de référence (9) et un faisceau de lumière cohérente (8) comportant une image. L'image est partiellement ou entièrement changée pour chaque zone successive, et peut être portée par un affichage pouvant être mis à jour, tel qu'un affichage à cristaux liquides.
PCT/GB1992/000453 1991-03-15 1992-03-13 Hologrammes WO1992016880A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919105520A GB9105520D0 (en) 1991-03-15 1991-03-15 Holograms
GB9105520.2 1991-03-15

Publications (1)

Publication Number Publication Date
WO1992016880A1 true WO1992016880A1 (fr) 1992-10-01

Family

ID=10691637

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/000453 WO1992016880A1 (fr) 1991-03-15 1992-03-13 Hologrammes

Country Status (2)

Country Link
GB (2) GB9105520D0 (fr)
WO (1) WO1992016880A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000356941A (ja) * 1999-04-12 2000-12-26 Dainippon Printing Co Ltd カラーホログラム表示体及びその作成方法
EP1515199A2 (fr) * 1995-07-18 2005-03-16 Dai Nippon Printing Co., Ltd. Plaque support pour enregistrement d'un hologramme, méthode de fabrication d'un hologramme et article enregistré par hologramme
EP1278107A3 (fr) * 2001-07-18 2006-12-06 Dai Nippon Printing Co., Ltd. Film pour enregistrement d'hologrammes avec information additionelle et méthode d'enregistrement
EP1744228A2 (fr) * 2005-07-11 2007-01-17 Dai Nippon Printing Co., Ltd. Hologramme de volume réfléchissant et procédé d'enregistrement correspondant
CN104011606A (zh) * 2011-12-30 2014-08-27 拜尔材料科学有限公司 用于制作数字全息图的干涉空间光调制器
EP0896260B1 (fr) * 1997-08-06 2016-12-07 Bundesdruckerei GmbH Procédé et appareil de fabrication de hologrammes par reproduction en contact
DE19809403B4 (de) * 1997-08-05 2017-07-06 Bundesdruckerei Gmbh Verfahren zur Herstellung eines Hologramms mit einer maschinenlesbaren Information
EP2912523B1 (fr) * 2012-10-25 2021-12-08 Entrust Datacard Corporation Production d'images d'éléments de sécurité
US11703799B2 (en) 2018-01-08 2023-07-18 Digilens Inc. Systems and methods for high-throughput recording of holographic gratings in waveguide cells
US12092914B2 (en) 2018-01-08 2024-09-17 Digilens Inc. Systems and methods for manufacturing waveguide cells
US12140764B2 (en) 2019-02-15 2024-11-12 Digilens Inc. Wide angle waveguide display
US12210153B2 (en) 2019-01-14 2025-01-28 Digilens Inc. Holographic waveguide display with light control layer
US12248150B2 (en) 2017-01-05 2025-03-11 Digilens Inc. Wearable heads up displays
US12271035B2 (en) 2019-06-07 2025-04-08 Digilens Inc. Waveguides incorporating transmissive and reflective gratings and related methods of manufacturing
US12298513B2 (en) 2022-11-28 2025-05-13 Digilens Inc. Waveguide device with uniform output illumination

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5986781A (en) 1996-10-28 1999-11-16 Pacific Holographics, Inc. Apparatus and method for generating diffractive element using liquid crystal display
FR2796184B1 (fr) * 1999-07-09 2001-11-02 Thomson Csf Document securise, systeme de fabrication et systeme de lecture de ce document
US20070223074A1 (en) 2005-07-26 2007-09-27 Harris Ken R Hybrid reflection hologram
CA2680255C (fr) 2006-03-17 2018-03-27 Ken R. Harris Hologramme hybride par reflexion
DE102020200669A1 (de) * 2020-01-21 2021-07-22 Bundesdruckerei Gmbh Sicherheitselement mit Doppelhologramm und Verfahren zu dessen Herstellung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1572600A1 (de) * 1966-11-30 1970-02-12 Battelle Development Corp Verfahren und Vorrichtung zum Kopieren von Hologrammen
US3799642A (en) * 1973-03-27 1974-03-26 Rca Corp Holographic recording on photochromic lithium niobate
US4126373A (en) * 1975-12-22 1978-11-21 Hoechst Aktiengesellschaft Holographic identification elements and method and apparatus for manufacture thereof
US4209250A (en) * 1978-12-26 1980-06-24 James Randall P System for making multiple original holograms or copies of a hologram and method
US4283109A (en) * 1978-04-10 1981-08-11 Lloyd Huff Method and apparatus for making wide exit pupil viewable holograms
DE3909289A1 (de) * 1988-03-24 1989-10-05 Ciba Geigy Ag Hologramme
EP0375185A2 (fr) * 1988-12-20 1990-06-27 ILFORD Limited Reproduction d'hologrammes
EP0407773A2 (fr) * 1989-07-14 1991-01-16 E.I. Du Pont De Nemours And Company Filtres à réjection holographique améliorés
EP0410205A2 (fr) * 1989-07-25 1991-01-30 Röhm Gmbh Films polymères anisotropes à cristal liquide

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1139955A (en) * 1965-11-22 1969-01-15 Rca Corp Hologram record pressings
US3612640A (en) * 1969-09-23 1971-10-12 Bell Telephone Labor Inc Holographic telephone directory with cinematographic accession of information
JPS6034754B2 (ja) * 1976-02-18 1985-08-10 松下電器産業株式会社 ホログラム記録装置
GB2133574A (en) * 1982-10-15 1984-07-25 Applied Holographics Making holograms

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1572600A1 (de) * 1966-11-30 1970-02-12 Battelle Development Corp Verfahren und Vorrichtung zum Kopieren von Hologrammen
US3799642A (en) * 1973-03-27 1974-03-26 Rca Corp Holographic recording on photochromic lithium niobate
US4126373A (en) * 1975-12-22 1978-11-21 Hoechst Aktiengesellschaft Holographic identification elements and method and apparatus for manufacture thereof
US4283109A (en) * 1978-04-10 1981-08-11 Lloyd Huff Method and apparatus for making wide exit pupil viewable holograms
US4209250A (en) * 1978-12-26 1980-06-24 James Randall P System for making multiple original holograms or copies of a hologram and method
DE3909289A1 (de) * 1988-03-24 1989-10-05 Ciba Geigy Ag Hologramme
EP0375185A2 (fr) * 1988-12-20 1990-06-27 ILFORD Limited Reproduction d'hologrammes
EP0407773A2 (fr) * 1989-07-14 1991-01-16 E.I. Du Pont De Nemours And Company Filtres à réjection holographique améliorés
EP0410205A2 (fr) * 1989-07-25 1991-01-30 Röhm Gmbh Films polymères anisotropes à cristal liquide

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1515199A2 (fr) * 1995-07-18 2005-03-16 Dai Nippon Printing Co., Ltd. Plaque support pour enregistrement d'un hologramme, méthode de fabrication d'un hologramme et article enregistré par hologramme
DE19809403B4 (de) * 1997-08-05 2017-07-06 Bundesdruckerei Gmbh Verfahren zur Herstellung eines Hologramms mit einer maschinenlesbaren Information
EP0896260B1 (fr) * 1997-08-06 2016-12-07 Bundesdruckerei GmbH Procédé et appareil de fabrication de hologrammes par reproduction en contact
EP1925993A2 (fr) * 1999-04-12 2008-05-28 Dai Nippon Printing Co., Ltd. Affichage d'hologramme en couleur et son processus de fabrication
EP1045296A3 (fr) * 1999-04-12 2006-12-06 Dai Nippon Printing Co., Ltd. Dispositif d'affichage d'hologramme en couleur et méthode pour sa fabrication
US7710622B2 (en) 1999-04-12 2010-05-04 Dai Nippon Printing Co., Ltd. Color hologram display and its fabrication process
EP1925993A3 (fr) * 1999-04-12 2011-03-09 Dai Nippon Printing Co., Ltd. Affichage d'hologramme en couleur et son processus de fabrication
JP2000356941A (ja) * 1999-04-12 2000-12-26 Dainippon Printing Co Ltd カラーホログラム表示体及びその作成方法
EP1278107A3 (fr) * 2001-07-18 2006-12-06 Dai Nippon Printing Co., Ltd. Film pour enregistrement d'hologrammes avec information additionelle et méthode d'enregistrement
EP1744228A2 (fr) * 2005-07-11 2007-01-17 Dai Nippon Printing Co., Ltd. Hologramme de volume réfléchissant et procédé d'enregistrement correspondant
EP1744228A3 (fr) * 2005-07-11 2007-03-21 Dai Nippon Printing Co., Ltd. Hologramme de volume réfléchissant et procédé d'enregistrement correspondant
US7538919B2 (en) 2005-07-11 2009-05-26 Dai Nippon Printing Co., Ltd. Three-dimensional hologram process with overt anti-counterfeit security using first object light, second object light, and reference light
EP2273321A1 (fr) * 2005-07-11 2011-01-12 Dai Nippon Printing Co., Ltd. Hologramme de volume réfléchissant et procédé d'enregistrement correspondant
US8289595B2 (en) 2005-07-11 2012-10-16 Dai Nippon Printing Co., Ltd. Hologram and its holographic process
CN104011606A (zh) * 2011-12-30 2014-08-27 拜尔材料科学有限公司 用于制作数字全息图的干涉空间光调制器
EP2798412A4 (fr) * 2011-12-30 2015-10-07 Bayer Materialscience Llc Modulateur de lumière dans l'espace interférométrique pour production d'hologrammes numériques
EP2912523B1 (fr) * 2012-10-25 2021-12-08 Entrust Datacard Corporation Production d'images d'éléments de sécurité
US12248150B2 (en) 2017-01-05 2025-03-11 Digilens Inc. Wearable heads up displays
US11703799B2 (en) 2018-01-08 2023-07-18 Digilens Inc. Systems and methods for high-throughput recording of holographic gratings in waveguide cells
US12092914B2 (en) 2018-01-08 2024-09-17 Digilens Inc. Systems and methods for manufacturing waveguide cells
US12210153B2 (en) 2019-01-14 2025-01-28 Digilens Inc. Holographic waveguide display with light control layer
US12140764B2 (en) 2019-02-15 2024-11-12 Digilens Inc. Wide angle waveguide display
US12271035B2 (en) 2019-06-07 2025-04-08 Digilens Inc. Waveguides incorporating transmissive and reflective gratings and related methods of manufacturing
US12298513B2 (en) 2022-11-28 2025-05-13 Digilens Inc. Waveguide device with uniform output illumination

Also Published As

Publication number Publication date
GB2254166A (en) 1992-09-30
GB9105520D0 (en) 1991-05-01
GB9205579D0 (en) 1992-04-29

Similar Documents

Publication Publication Date Title
WO1992016880A1 (fr) Hologrammes
US5986781A (en) Apparatus and method for generating diffractive element using liquid crystal display
US4171766A (en) Falsification-proof identification card having a Lippmann-Bragg hologram
US5396559A (en) Anticounterfeiting method and device utilizing holograms and pseudorandom dot patterns
US7616363B2 (en) Method and apparatus for mass production of holograms
US6613481B2 (en) Hologram film having identification information recorded thereon and method for manufacturing the same
CZ2004869A3 (cs) Zpusob vytvorení trojrozmerného obrazu, difraktivní prvek a zpusob jeho vytvorení
CN1910523B (zh) 安全装置
KR20120005380A (ko) 다시점 화상 기록 매체 및 진위 판정 방법
CN102645883A (zh) 全息图承载介质、判定装置及全息图承载介质制造装置
Vather et al. Serialized holography for brand protection and authentication
US20080247017A1 (en) System and method for printing a hologram
US7777953B2 (en) Method for producing a grating image, grating image and security document
EP1955117A1 (fr) Appareil et procede de production d'un hologramme
KR20200048921A (ko) 보안용 홀로그램 스티커 라벨의 제조방법
EP0695440A1 (fr) Hologrammes
US5227897A (en) Reproduction of holograms
JPH06118864A (ja) ホログラム，該ホログラムの作成方法およびホログラムを用いた確認方法および確認装置
JP2005242357A (ja) 表面上に回折要素を被着させるための方法及び装置
US7061656B2 (en) Hologram duplicating device and method
JP4258055B2 (ja) 偽造防止媒体
Odinokov et al. Method of Personalization of Photopolymer Security Holograms Based on Recording Hidden Encoded Digital Images
PL203131B1 (pl) Sposób i urządzenie do seryjnej produkcji obiektów zabezpieczonych
Blyth Security display hologram to foil counterfeiting
WO2004107043A1 (fr) Procede de reproduction d'une matrice holographique sur un support et support

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LU MC NL SE

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载