Check patentability & draft patents in minutes with Patsnap Eureka AI!

Optically variable security element

A security element and optical technology, applied in printing, banknote authenticity inspection, information-carrying cards, etc., can solve the problem that the security element is not too decorative, and achieve obvious color change effect, high flexibility, and low waste rate effect

Inactive Publication Date: 2007-08-15
GIESECKE & DEVRIENT GMBH
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, users often say that the security elements produced by this method are not very decorative, since the printed background can only be printed with very dark printing inks, and the fine structure in high resolution always appears in the form of narcissus ( paperwhite)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optically variable security element
  • Optically variable security element
  • Optically variable security element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The invention is now explained in more detail using a banknote as an example. FIG. 1 shows a schematic view of a banknote 10 , which, in addition to the denomination 12 and portrait 14 , has an optically variable security element 16 . The security element 16 includes a piece of information 18 which, in the exemplary embodiment, includes typically multiple reproductions of the denomination 12 imprinted on the banknote.

[0040]The security element can also reproduce other pieces of information, for example, graphic graphics, such as a portrait 14, or constituted logos or codes, such as barcodes or alphanumeric strings. In order to increase the security of the banknote against counterfeiting, the information 18 in the security element 16 is generally related or complementary to a piece of information also present in another location of the banknote 10, so that the user can obtain a simple verification of authenticity.

[0041] The structure of the security element 16 in ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Engraving depthaaaaaaaaaa
Login to View More

Abstract

The invention relates to an optically variable security element (16) for protecting valuable objects. Said element comprises at least one piece of information and a transparent optically variable layer (30) that is applied to the information. According to the invention, the information is formed by series of layers comprising a coloured printed background layer (22) and a line gravure printed layer (24) that is applied to the printed background layer (22).

Description

technical field [0001] The invention relates to an optically variable security element for protecting valuables, having at least one piece of information and a light-transmissive optically variable layer arranged on the piece of information. Background technique [0002] For protection purposes, valuables such as branded items and important documents are often equipped with security elements, allowing the authenticity of the valuables to be verified and, at the same time, used to prevent unauthorized duplication. Valuables within the meaning of the invention are in particular banknotes, shares, bonds, certificates, vouchers, checks and valuable admission tickets, and other documents with a risk of forgery, such as passports and other identity documents, and product protection elements, such as labels, seals , packaging, etc. In the following, the term "valuables" includes all such items, documents and product protection devices. [0003] In order to prevent copies, even of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G07D7/12
CPCB42D2035/28B42D15/0013B41M3/14G07D7/0006B42D15/10B42D25/29B42D25/00G07D7/128B41M1/10B42D25/324B42D25/405G07D7/003B42D25/351
Inventor P·弗朗茨
Owner GIESECKE & DEVRIENT GMBH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com