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2. HID Global - Wikipedia

   en.wikipedia.org/wiki/HID_Global

   The company sells physical access control products, logical access control products, and secure issuance products that comprise cards, readers, smart card readers (OMNIKEY), networked access products, card printer /encoders (FARGO) and software. Its other business segments includes virtualization technology, cashless payment, government ID, RFID for industry and logistics and Animal ID ...

3. Physics of optical holography - Wikipedia

   en.wikipedia.org/wiki/Physics_of_Optical_Holography

   Learn how light waves create 3D images in physics of optical holography, a fascinating branch of science with many applications and challenges.

4. Security hologram - Wikipedia

   en.wikipedia.org/wiki/Security_hologram

   A hologram label on a paper box for security. Security holograms are labels with a hologram printed onto it for sale security reasons. It is argued by the International Hologram Manufacturers Association that holograms on security labels are difficult to forge because they are replicated from a master hologram which requires expensive ...

5. Optical variable device - Wikipedia

   en.wikipedia.org/wiki/Optical_Variable_Device

   OVDs are based on diffractive optical structures. This gives cards the appearance of having different patterns, colours, and designs depending on the amount of light striking the OVD and the angle the OVD is viewed at. Holograms are a type of OVD.

6. Holographic display - Wikipedia

   en.wikipedia.org/wiki/Holographic_display

   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 ...

7. Holography - Wikipedia

   en.wikipedia.org/wiki/Holography

   A hologram is a recording of an interference pattern that can reproduce a 3D light field using diffraction. In general usage, a hologram is a recording of any type of wavefront in the form of an interference pattern. It can be created by capturing light from a real scene, or it can be generated by a computer, in which case it is known as a computer-generated hologram, which can show virtual ...