The
Creation of a 3D Display Hologram
STEP 2 - The Holographic
Transfer
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Holographic transferring is the process whereby the information contained in a holographic master is transferred to the final hologram. |
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In order to
set the HS to "transfer mode" a single button is pressed
on the main optical unit controller. The master hologram (shown in
light blue in the diagram to the left) is loaded into the plate
holder and an unexposed photoplate or film is loaded opposite it
(shown light yellow). The laser is then activated to produce a flash of laser radiation (shown green) that effects the transfer. The (yellow) photoplate is then chemically processed and dried, after which it becomes the final display hologram. Display holograms are printed on a special plastic photofilm or onto a glass photoplate instead of the familiar photographic paper used in photography. Glass photoplates may be used for archival purposes as the recorded 3D images are of an exceptionally good quality and can last almost indefinitely under correct conditions. A film substrate is useful for many commercial applications owning to its cost and ease of use. |
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