Hologram Recording Medium (US 7385740)
A hologram recording medium has been invented. It has a recording layer at which, when illuminated by writing light, a hologram is recorded. On top of the recording layer is a protective layer with a water absorbency of ≤0.01%, which improves the medium’s raw storability.
Applications: Anticounterfeiting security device; identification for authentication (fingerprint, iris).
Assignee: Fuji Xerox Co. Ltd. (Tokyo)
Inventors: K. Haga, K. Hayashi, K. Kawano, H. Yoshizawa, J. Minabe, Y. Ogasawara, S. Yasuda and N. Matsui
Filing/Publication Date: 08-17-05/06-10-08