Holograms

Some articles on hologram, holograms:

Computer-generated Holography - Wavefront Computation - Fourier Transform Method
... is used to simulate the propagation of each plane of depth of the object to the hologram plane ... detour phase method leading to cell oriented holograms ... A coding technique suggested by Burch replaced the cell oriented holograms by point holograms and made this kind of computer generated holograms more attractive ...
Hologram Trademark
... A hologram trademark is a non-conventional trademark where a hologram is used to perform the trademark function of uniquely identifying the commercial origin of products or services ... In recent times holograms have been increasingly used as trade marks in the marketplace ... However, it has traditionally been difficult to protect holograms as trademarks through registration, as a hologram was not considered to be a 'trademark' ...
Smeghead - Technology - Holograms
... Holograms in Red Dwarf are visual projections of dead people, with the person's personality, knowledge and experience, like living humans they have ... Holograms are apparently commonplace on 22nd century earth, for example, the newsreader on Channel 27 is a hologram ... Holly is only capable of sustaining one hologram aboard the ship, due to the fact that the amount of energy required to power a hologram for one second could 'power the whole of Paris for three years ...
Security Printing - Holograms
... A hologram may be embedded either via hot-stamping foil, wherein an extremely thin layer of only a few microns of depth is bonded into the paper or a plastic ...
Security Hologram - 2D / 3D "hologram" Images
... These are by far the most common type of hologram - and in fact they are not holograms in any true sense of the words ... The term "hologram" has taken on a secondary meaning due to the widespread use of a multilayer image on credit cards and driver licenses ... This type of "hologram" consists of two or more images stacked in such a way that each is alternately visible depending upon the angle of perspective ...