公开(公告)号：EP0611666A1

公开(公告)日：1994-08-24

申请号：EP93911973.1

申请日：1993-05-07

申请人： HITACHI MAXELL, LTD.

发明人： OSHIMA, Toshio ,  OHIWA, Tsunemi ,  NISHIDA, Masato ,  MATSUMOTO, Taiji ,  ITOH, Akihiko ,  TAKEUCHI, Yoji

IPC分类号： B42D15/10 ,  G06K7/12 ,  G06K19/00 ,  G06K19/18 ,  G06K7/10

CPC分类号： G06K19/06009 ,  B42D25/00 ,  B42D25/23 ,  B42D25/382 ,  B42D25/45 ,  G06K7/12

摘要： There is provided a latent image carrier from which data can be reliably read for a long time. It includes a data storage layer (2) having a latent image pattern formed of fine phosphor paticles dispersed and held on a substrate (4a). When the layer (2) is irradiated with light having a predetermined wavelength, the luminescence from the fine phosphor particles is read as optical information. When irradiated with such light, the surface of the substrate (4a) has a reflectivity of at least 20%. The data storage layer (2) base thickness T of 0.5 to 20 µm above the upper surface of the substrate (4a), and a protective sheet (6a) is laminated on the substrate (4a) to cover the data storage layer (2) as a whole.

公开(公告)号：EP0611666B1

公开(公告)日：1997-09-17

申请号：EP93911973.1

申请日：1993-05-07

申请人： HITACHI MAXELL, LTD.

发明人： OSHIMA, Toshio ,  OHIWA, Tsunemi ,  NISHIDA, Masato ,  MATSUMOTO, Taiji ,  ITOH, Akihiko ,  TAKEUCHI, Yoji

IPC分类号： B42D15/10 ,  G06K7/12 ,  G06K19/00 ,  G06K19/18 ,  G06K7/10

CPC分类号： G06K19/06009 ,  B42D25/00 ,  B42D25/23 ,  B42D25/382 ,  B42D25/45 ,  G06K7/12

摘要： There is provided a latent image carrier from which data can be reliably read for a long time. It includes a data storage layer (2) having a latent image pattern formed of fine phosphor paticles dispersed and held on a substrate (4a). When the layer (2) is irradiated with light having a predetermined wavelength, the luminescence from the fine phosphor particles is read as optical information. When irradiated with such light, the surface of the substrate (4a) has a reflectivity of at least 20 %. The data storage layer (2) has a thickness T of 0.5 to 20 νm above the upper surface of the substrate (4a), and a protective sheet (6a) is laminated on the substrate (4a) to cover the data storage layer (2) as a whole.

摘要翻译： 提供潜像载体，数据可以从该潜像载体长时间可靠地读取。 它包括具有分散并保持在基板（4a）上的细磷光体颗粒形成的潜像图案的数据存储层（2）。 当用具有预定波长的光照射层（2）时，来自细磷光体颗粒的发光被读取为光学信息。 当用这种光照射时，基板（4a）的表面的反射率至少为20％。 在基板（4a）的上表面上方0.5〜20μm的数据存储层（2）的基底厚度T和保护片（6a）层叠在基板（4a）上以覆盖数据存储层（2） ）作为一个整体。