A single method and apparatus for producing many of the most common types
of hologram from digital data is disclosed. The data are generated
entirely by a computer as a 3-D (animated) model or from multiple 2-D
camera images taken of a real 3-D (moving) object or scene from a
plurality of different camera positions. The data are digitally processed
and displayed on a small high resolution spatial light modulator (SLM). A
compact low energy pulsed laser, is used to record composite holograms.
The present invention permits the creation of restricted or full parallax
master transmission or reflection type composite holograms, known as H1
holograms, that can be copied using traditional methods. Alternatively
the same invention and apparatus permits the direct writing of hologram
without the need to pass through the intermediate stage of the H1
transmission hologram.