MULTILAYER FLUORESCENT OPTICAL DISC WITH PHOTOSENSITIVE FLUORESCENT MATERIAL

A multilayer optical memory of WORM (write-once-read-many) type has photosensitive layers with fluorescent reading. The disc contains a transparent substrate and multiple information layers spatially divided from one another by polymer layers and assembled usingadhesive layers. Information is stored...

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Main Authors MAGNITSKII, SERGEII, PEBALK, DIMITRY, MALAKHOV, DIMITRY, MAGNITSKI, NIKOLAY, TARASISHIN, ANDREY, SHUBIN, VLADIMIR, KAPINUS, EUGENE, MALKIN, JACOB, ALPEROVICH, MARK, LEVICH, EUGENE
Format Patent
LanguageEnglish
French
Published 25.01.2001
Edition7
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Summary:A multilayer optical memory of WORM (write-once-read-many) type has photosensitive layers with fluorescent reading. The disc contains a transparent substrate and multiple information layers spatially divided from one another by polymer layers and assembled usingadhesive layers. Information is stored in a photosensitive substance within spiral grooves. The photosensitive substance can be formed as a continuous layer or as discrete grooves on a non-photosensitive background. Various compositions for the photosensitive substance allow recording in by changing fluorescence bleaching or emitting, with threshold-type recording. Une mémoire optique multicouche de type WORM (disque optique non réinscriptible) comporte des couches photosensibles à lecture fluorescente. Ce disque contient un substrat transparent et plusieurs couches d'informations séparées les unes des autres par des couches polymères et assemblées au moyen de couches adhésives. Les informations sont stockées dans une substance photosensible à l'intérieur de rainures en spirales. La substance photosensible peut se présenter sous forme d'une couche continue ou de rainures séparées sur un fond non photosensible. Diverses compositions de la substance photosensible permettent un enregistrement en modifiant le blanchiment ou l'émission de fluorescence par un enregistrement de type seuil.
Bibliography:Application Number: WO2000US19427