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Holographic Versatile Card. The Holographic Versatile Card (HVC) was a proposed data storage format by Optware; the projected date for a Japanese launch had been the first half of 2007, pending finalization of the specification, however as of January 2025, nothing has yet surfaced.This issue may be related to the bankrupt of certain entities once responsible for the development and ...
Dot matrix holograms are capable of embedding microtext at various sizes. There are three types of microtexts in holograms: [citation needed] high contrast microtexts of size 50 – 150 micrometres; diffractive grating filled microtexts of size 50 – 150 micrometres low contrast microtexts. Microtexts of sizes smaller than 50 micrometres are ...
Connecting of a hologram with the protected item is a critical task, and there are many specific technologies for it. Microholograms enable to protect material (substrate)l for a production of documents, stamps, products, etc. Tiny metallic particles of the size from 40 micrometers to half a millimeter are blended into plastic, paper, foil, etc.
On the inner sleeve was an explanation of the holographic process and instructions on how to light the hologram. National Geographic published the first magazine with a hologram cover in March 1984. [14] Embossed holograms are used widely on credit cards, banknotes, and high value products for authentication purposes. [3]
Holographic data storage is a potential technology in the area of high-capacity data storage. While magnetic and optical data storage devices rely on individual bits being stored as distinct magnetic or optical changes on the surface of the recording medium, holographic data storage records information throughout the volume of the medium and is capable of recording multiple images in the same ...
Plastic cards (standard size ID-1) come in various colors and finishing. [3] The laminated mixture of various dyes, paper and plastics (so far mainly PVC and PVCA) and the integration with electronics makes them hard to recycle. [4] [5]
The objective of the test was to find a new method of measuring surface and atmospheric parameters that could reduce the size, mass, and angular momentum of a spaceborne lidar systems. [ 6 ] [ 8 ] The ability of HOE to be made as curved or bendable allows it to be used in the construction of head up displays (HUD) or head mount displays (HMD).
A holographic display is a type of 3D display that utilizes light diffraction to display a three-dimensional image to the viewer. Holographic displays are distinguished from other forms of 3D displays in that they do not require the viewer to wear any special glasses or use external equipment to be able to see the image, and do not cause a vergence-accommodation conflict.