3D Hologram Technology

About 3D Hologram Technology:

• It is a virtual three-dimensional images created by the interference of light beams that reflect real physical objects. Holograms preserve the depth, parallax, and other properties of the original item. 
• Unlike conventional 3D projections, holograms can be seen with the naked eye.
• Principle: It uses the principles of interference and diffraction of light waves to record and reconstruct 3D images of objects.
• There are two methods for creating holograms: computer-generated holograms for augmented reality glasses and actual holograms for optical displays. 
• Application: It has a wide range of applications in medicine, the military, weather forecasting, virtual reality, digital art, and security.

How do holograms prevent counterfeiting? 

• Holograms prevent counterfeiting because of their complexity, making them difficult to replicate using traditional methods.
• Holograms’ intricate patterns and properties make them difficult to duplicate completely, which deters counterfeiters.
• Additionally, holograms are designed to be easily recognizable by trained individuals, facilitating quick identification of genuine products versus fake ones.

Q1: What is refraction?

In physics, the change in direction of a wave passing from one medium to another caused by its change in speed is called refraction. For example, waves travel faster in deep water than in shallow.

Source: Japan issues new yen banknotes packed with 3D hologram technology to fight counterfeiting

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