FIELD: physics.
SUBSTANCE: first optically variable information element of the protective element is a three-dimensional hologram layer. The second optically variable information element of the protective element is a duplication layer on whose surface a relief structure is formed. A partial metal layer is placed between the duplication layer and the three-dimensional hologram layer. The metal layer is provided in one or more first zones of the protective element and is not provided in one or more second zones of the protective element. A three-dimensional hologram is recorded in the three-dimensional hologram layer through the partial metal layer acting as a photomask.
EFFECT: reduced distortion of information elements and high reliability of the protective element.
40 cl, 21 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MULTILAYER PROTECTIVE ELEMENT AND METHOD OF ITS OBTAINING | 2016 |
|
RU2642535C1 |
| PROTECTIVE ELEMENT AND METHOD OF MAKING PROTECTIVE ELEMENT | 2011 |
|
RU2596447C2 |
| PROTECTIVE ELEMENT | 2004 |
|
RU2381908C2 |
| MULTILAYER BODY | 2008 |
|
RU2466874C2 |
| PROTECTIVE ELEMENT IN FORM OF MULTILAYER FILM BODY | 2005 |
|
RU2357869C2 |
| PROTECTION ELEMENT FOR PROTECTED DOCUMENT AND METHOD OF ITS FABRICATION | 2008 |
|
RU2422572C2 |
| MULTILAYER PROTECTIVE OPTICAL DIFFRACTION DEVICE, A METHOD FOR MANUFACTURING THE SPECIFIED DEVICE, A PROTECTED PRODUCT CONTAINING THE SPECIFIED MULTILAYER PROTECTIVE OPTICAL DIFFRACTION DEVICE | 2020 |
|
RU2759482C1 |
| MULTILAYER PROTECTIVE OPTICAL DIFFRACTION-POLARIZATION DEVICE, A METHOD FOR MANUFACTURING THE SPECIFIED DEVICE, A PROTECTED PRODUCT CONTAINING THE SPECIFIED MULTILAYER PROTECTIVE OPTICAL DIFFRACTION-POLARIZATION DEVICE | 2021 |
|
RU2763388C1 |
| PROTECTIVE ELEMENT WITH ACHROMATIC CHARACTERISTICS | 2011 |
|
RU2591770C2 |
| PROTECTIVE ELEMENT, VALUABLE DOCUMENT WITH SUCH PROTECTIVE ELEMENT, AND ALSO METHOD OF MANUFACTURING PROTECTIVE ELEMENT | 2010 |
|
RU2564581C2 |
