Lexique
Alphagram®
A security origination produced using the interferential microlithography technology invented by Hologram. Industries. This technology is used to produce very bright, high-resolution diffractive images that incorporate unique optical effects extremely difficult to counterfeit.Alphagram® integrates 1st-, 2nd- and 3rd-level security elements.It is especially recommended for the protection of fiduciary or highly sensitive identity documents.
Chromogram®
This is one of the Hologram. Industries originations produced using interferential microlithography technology. Chromogram® integrates 1st- and 2nd-level security elements. It is particularly well-suited to protecting single-use fiduciary products that require only a minimum level of security and copy resistance over time.
Demetallization
Demetallization is a technology enabling metalized graphic elements to be created in a transparent hologram, or transparencies in a metalized holographic image, registered in positive or negative compared to the design. At high resolution it provides additional security for an optical image.
Diagram®
This is an origination technique used to produce volume, depth or relief effects. When combined with interferential microlithography it opens up countless design possibilities and offers a very high level of resistance to counterfeiting. Diagram® is particularly well-suited to protecting branded products.
DID®
DID is a one-of-its-kind optical security element, very easily identifiable with the naked eye. It reproduces a design made up of two distinct colored elements made visible by direct reflection of light, and whose colors are inverted when it is rotated 90° in the plane. It is a zero-order optical microstructure combined with thin films. DID® elements are machine-readable and extremely difficult to copy.
Diffractive Optical Variable Image Device (DOVID)
This term encompasses all the optical components that produce diffractive and variable images commonly known as holograms.
Surface effects
In holography surface effects are effects that are not volume (3D) and depth effects. They are very bright and easily observable.
Gyrogram®
This is one of Hologram. Industries' range of originations produced using interferential microlithography technology. It integrates 1st-, 2nd- and 3rd-level security elements. It is particularly well suited to protecting medium-security fiduciary documents.
Holocis®
This is a system of protection against vehicle fraud and trafficking. It is based on several high-security holographic elements placed on the windscreen, number plates and vehicle documents and which are interrelated by a specific code.
High Refractive Index (HRI)
This is a transparent metallization technology for holograms. It requires special equipment and know-how.
Nanograph®
This is an optical third-level security element that can be inserted in a design. The Nanograph® is completely invisible to the naked eye and can be read only using a microscope. It may contain texts and images in an area of micrometric size.
Optofoil®
Hologram. Industries range of hot stamping holographic films. Optofoil® films were developed in response to market needs. They can be applied to a wide range of materials in industrial conditions. Optofoil® films can carry every type of Hologram. Industries origination.
Optomag®
The name given to the range of holographic and magnetic products developed by Hologram. Industries and Pyral.
Optoproof®
Hologram. Industries range of self-adhesive holographic labels. It comprises different types of destructible and indestructible products, thus providing in some cases a "proof-of-tampering" function. Optoproof® secure labels are especially effective for protection of branded products.
Optoseal®
Hologram. Industries range of holographic laminates developed specifically to protect ID documents. The brilliance and perfect transparency of Optoseal® laminates enable authentication of documents and protection of the variable data they carry. They come in various formats depending on whether the personalization system is centralized or decentralized.
Optotrace®
Hologram. Industries range of high-security holographic labels enabling authentication and reliable unitary traceability of branded products. It can be used to combat counterfeiting and grey market.
Origination
In holography this term designates the whole holographic matrix production process. It comprises the creation of the graphic design, the optical recording, and the transfer of the optical image onto a medium enabling the image to be duplicated using industrial processes.
Optical Variable Device (OVD)
This term encompasses all products incorporating variable optical elements. These include holograms and optically variable inks.
Scramblegraph®
This is a second-level optical security element invisible to the naked eye. It contains a coded text or image that can be read by means of a special optical lens.
Stereogram
This is an in-relief hologram of an object produced from a large number of views of the object seen from different angles. Stereograms can be produced from a series of photos of objects or people and also from computer-generated images.
