What technique is commonly used in genuine holograms to prevent counterfeiting?

What technique is commonly used in genuine holograms to prevent counterfeiting?

• A. Lenticular refraction process
• B. Foil with stamped image
• C. Embossed numbers
• D. Magnetic stripe

Answer: (A)

Genuine holograms rely on optical features that respond to how you view them, creating effects that change with angle. A lenticular refractive approach uses a micro-lens array layered with the holographic surface to steer light in precise ways, producing depth, motion, or color shifts when you tilt or move the item. This dynamic interaction is very hard to replicate, because it requires matching both the holographic pattern and the exact geometry of the lenticular elements. That combination makes counterfeiters’ work much more difficult, so this technique is commonly used to prevent tampering and fake reproductions. Stamps or embossed images on a foil are easier to copy and don’t offer the same angle-dependent magic, while a magnetic stripe stores data rather than providing a visual anti-counterfeiting feature.

Genuine holograms rely on optical features that respond to how you view them, creating effects that change with angle. A lenticular refractive approach uses a micro-lens array layered with the holographic surface to steer light in precise ways, producing depth, motion, or color shifts when you tilt or move the item. This dynamic interaction is very hard to replicate, because it requires matching both the holographic pattern and the exact geometry of the lenticular elements. That combination makes counterfeiters’ work much more difficult, so this technique is commonly used to prevent tampering and fake reproductions.

Stamps or embossed images on a foil are easier to copy and don’t offer the same angle-dependent magic, while a magnetic stripe stores data rather than providing a visual anti-counterfeiting feature.