A hologram is a three-dimensional image that is made with a laser. As the image is tilted, the object in the picture changes position and orientation as if it were a real object rather than a flat image. Some holograms are patterns rather than images, and some holograms use patterns to hide the image so that it is not visible to the naked eye and must be read with a laser or some other type of scanner. Holograms may also be used to store information that can only be interpreted by a laser, such as movies or music recorded on a Blu-ray disc.
Because of the difficulties involved in copying holographic foils, custom hologram labels are an inexpensive but very effective way to verify authenticity. Many hologram sticker manufacturers that create hologram stickers allow the companies to provide their own unique artwork or brand images, providing custom stickers with tamper-proof security.
Another safety feature of most hologram stickers is that they are created to be tamper-proof. If an attempt is made to peel them off of the product to which they have been affixed, the sticker comes apart and self-destructs in a way that prevents reuse. Generally, some of the holographic material will stay on the product as the rest of the sticker is peeled away, leaving a pattern of dots, checks, or even words such as “void” across the surface of the product. This makes it easy to detect tampering and prevent theft and unauthorized return attempts.
