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7301683 Hologram and holographic viewing device incorporating it  
The invention relates to a hologram that enables two or more different images to be simultaneously reconstructed even in a state where the hologram is fixed in terms of relative position with...
6870649 Holographic viewing device, and computer-generated hologram for the same  
The invention relates to a holographic viewing device that enables a bright reconstructed pattern to be viewed in place of light sources in a scene while a spot due to zero-order transmitted light...
6825959 Holographic viewing device, and computer-generated hologram for the same  
The invention relates to a holographic viewing device that has a high diffraction efficiency, enables bright patterns with less noticeable conjugate or higher-order images to be viewed in place of...
Matches 1 - 3 out of 3