Question

Why holograms required same thing display from 4 sides

Answer 1

Answer:

it is an image formed by lasers .the laser is twisted in different ways to form a hologram.

Answer 2

Answer:

Explanation:

A lens is required in photography to record the image, whereas in holography, the light from the object is scattered directly onto the recording medium. A holographic recording requires a second light beam (the reference beam) to be directed onto the recording medium.