Hologram plate and its fabrication process

Abstract

The invention provides a hologram plate which is used with the double-focus replication process, and which is integrated with a spacer to impart marring resistance thereto, and is integrated with a light absorbing layer to allow zero-order light and first-order light to have substantially the same intensity. This hologram plate 42 comprises an array of collective element holograms for diffracting parallel light incident thereon at a specific wavelength and a specific incident angle in such a way that the light is converged onto a specific focal length position. The hologram plate 42 is a multilayer structure made up of a first transparent substrate 31 , a hologram layer 32 , an adhesive layer 33 and a second transparent substrate 41 . The second transparent substrate 42 defines a surface in contact with a hologram photosensitive material 53 during hologram replication.

1 . A hologram plate comprising a plurality of juxtaposed unit hologram segments, wherein: 
 one common transparent thin sheet is provided over surfaces of said plurality of juxtaposed unit hologram segments with an adhesive agent interleaved therebetween.    
   
   
       2 . The hologram plate according to  claim 1 , wherein each unit hologram segment comprises a transparent substrate, a photosensitive material layer formed thereon while a hologram is recorded therein, and a protective layer formed on said photosensitive material layer.  
   
   
       3 . The hologram plate according to  claim 2 , wherein a transparent thin sheet is bonded onto said protective layer for each unit hologram segment.  
   
   
       4 . The hologram plate according to  claim 1 , wherein said plurality of unit hologram segments are hologram segments replicated from the same hologram plate.  
   
   
       5 . The hologram plate according to  claim 2 , wherein said plurality of unit hologram segments are hologram segments replicated from the same hologram plate.  
   
   
       6 . The hologram plate according to  claim 3 , wherein said plurality of unit hologram segments are hologram segments replicated from the same hologram plate.  
   
   
       7 . The hologram plate according to  claim 1  wherein each unit hologram segment comprises a hologram color filter.  
   
   
       8 . The hologram plate according to  claim 2 , wherein each unit hologram segment comprises a hologram color filter.  
   
   
       9 . The hologram plate according to  claim 3 , wherein each unit hologram segment comprises a hologram color filter.  
   
   
       10 . The hologram plate according to  claim 4 , wherein each unit hologram segment comprises a hologram color filter.  
   
   
       11 . The hologram plate according to  claim 5 , wherein each unit hologram segment comprises a hologram color filter.  
   
   
       12 . The hologram plate according to  claim 6 , wherein each unit hologram segment comprises a hologram color filter.