公开(公告)号：US20040174579A1

公开(公告)日：2004-09-09

申请号：US10800678

申请日：2004-03-16

申请人： DAI NIPPON PRINTING CO., LTD.

发明人： Keiko Sekine ,  Hiroshi Kishimoto ,  Masaki Katsumata ,  Yoichi Higuchi ,  Nobuhiko Ichikawa ,  Tadatsugu Onuma

IPC分类号： G03H001/20 ,  G03H001/30

CPC分类号： G03H1/202 ,  G02B5/203 ,  G02B5/32 ,  G03H1/0252 ,  G03H1/0256 ,  G03H1/30 ,  G03H2001/306 ,  G03H2240/53 ,  Y10S359/90

摘要： 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.