Interference Imaging

Holography is "lensless photography" in which an image is captured not as an image focused on film, but as an interference pattern at the film.

The Transmission Hologram

The coherent light from the laser is split to form an object beam and a

Viewing a Transmission Hologram

Holography is lensless photography. The image is captured in the interference pattern on the film, and the image can be reconstructed for viewing by shining the coherent light of a laser on the hologram. The eye is focused behind the film to see the image suspended in space. It shows the unique characteristics of holographic images.

The diverged laser beam should be placed in the same orientation with respect to the film as the