Going back to the hologram, people who want to see a hologram, they don’t have to look much farther than their wallets as there are holograms on most driver’s licenses, ID cards, and credit cards.
Holograms can also be found as part of CD, DVD, and software packaging, as well as just about everything sold as official merchandise.
Unfortunately, these holograms, which exist to make forgery more difficult, aren’t very impressive. There are changes in colors and shapes when they are moving back and forth, but they usually just look like sparkly pictures or smears of color.
Even the mass-produced holograms that feature movie and comic book heroes can look more like green photographs than amazing 3D images.
On the other hand, large-scale holograms, illuminated with lasers or displayed in a darkened room with carefully directed lighting, are incredible.
They’re two-dimensional surfaces that show absolutely precise, three-dimensional images of real objects. A person does not even have to wear special glasses or look through a View-Master to see the images in 3D.
Looking at these holograms from different angles, one would see objects from different perspectives, just like he would if he was looking at a real object.
Some holograms even appear to move as one walks past them and look at them from different angles. Others change colors or include views of completely different objects, depending on how one looks at them.