hologramme primaire

CONT: The upper part of the hologram records the view of the upper part of the object, the right-hand side of the hologram, the right side of the object, and so on. It is like looking through a window at the object itself; and if you reduce the size of the window (e.g., by breaking the hologram into small pieces and looking through a single piece) … Such a hologram is often termed the master or primary hologram as distinguished from a copy or transfer hologram made from it.