In CWorld: The advance mentioned below is important:
... Holograms have been part of the business and science community's toolset for some time but Microsoft is highlighting just how advanced they have become lately. ....
Wide angle holograms
Rayvel, which specializes in advanced holographics, was recently awarded a patent for its wide angle hologram technology that enables the production of compact holographic displays.
This is how Rayvel explains the problem it takes on with its technology:
A hologram appears when it is illuminated from a light source at an angle that is determined during the manufacturing process. Typically it is a source at about a 45 degree angle from the hologram. It also usually needs to be placed at a distance from the hologram: the larger the hologram the further away the light source needs to be. This new invention allows the light source to be nearly parallel and close to the hologram, allowing the design of significantly flatter image display systems, useful for advertising signage, point-of-purchase, and trade shows. .... "
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