Claims
- 1. A multi-layered optical memory device comprising a plurality of spaced-apart data layers containing a material excitable by incident light to produce fluorescence, each layer having a patterned surface thereof, the pattern being in the form of a plurality of regions containing the fluorescent material and spaced by regions of the layer transparent with respect to the incident light and to said fluorescence, thereby enabling access of all data layers by the incident light.
- 2. The device according to claim 1, further comprising a material reflective with respect to the incident light and said fluorescence the reflective material being located in the fluorescent material containing regions and being coated by said fluorescent material.
- 3. The device according to claim 1, wherein the fluorescent material containing regions are spaced-apart recesses.
- 4. The device according to claim 3, wherein said recesses are in the form of pits.
- 5. The device according to claim 1, being in the form of a disc.
- 6. The device according to claim 5, wherein said the fluorescent material containing regions form a continuous spiral-like recess, the disc being thereby of recordable optical disc type.
Parent Case Info
This application is a divisional of application Ser. No. 08/956,052, filed on Oct. 22, 1997 now U.S. Pat. No. 6,039,898 issued Mar. 21, 2000, the entire contents of which are hereby incorporated by reference which claims benefit of Provisional No. 60/045,985 filed May 8, 1997.
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0188311A2 |
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0197256A2 |
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Provisional Applications (1)
|
Number |
Date |
Country |
|
60/045985 |
May 1997 |
US |