Why Do Holograms Look So Real?

Imagine you have a toy that can make two shadows on the wall, one from the front and one from the side. When they overlap, it looks like the toy is standing there in real life! That’s how holograms work. Instead of just one light source, they use many to create a 3D image that you can see from different angles.

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Examples

  1. A holographic birthday card that makes the image of a friend appear as if they're floating in front of you.
  2. A hologram of a cat that moves its tail when you wave your hand near it.
  3. A hologram on a smartphone screen showing a live video of a concert from different angles.

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Categories: Technology · holography,optics,technology,light,3D imaging