A copper ion-doped polychromatic fluorescent glass and a preparation method and use thereof are provided. The fluorescent glass has a chemical formula shown as the following: aP.sub.2O.sub.5-bSiO.sub.2-cZnO-dCs.sub.2CO.sub.3-eNaCl-fCuCl, wherein a, b, c, d, e, and f in the formula represent the molar coefficients of compounds, wherein a is 45 to 65, b is 10 to 30, c is 1 to 5, d is 5 to 20, e is 5 to 20, f is 0.1 to 5. The fluorescent can achieve blue, orange and near-infrared photoluminescence under the UV light with higher fluorescent quantum yield.

A glass that includes Pr.sub.2O.sub.3 and Nd.sub.2O.sub.3 such that the sum of Pr.sub.2O.sub.3 and Nd.sub.2O.sub.3 is greater than 0.2 mole % and the ratio of Nd.sub.2O.sub.3 to Pr.sub.2O.sub.3 is greater than 0.5 and less than 3. Further, the sum of any chromophores in the glass from the group V.sub.2O.sub.5, Cr.sub.2O.sub.3, MnO, Mn.sub.2O.sub.3, Fe.sub.2O.sub.3, CoO, Co.sub.3O.sub.4, CuO, NiO, Nb.sub.2O.sub.5, CeO.sub.2, Ho.sub.2O.sub.3 and Er.sub.2O.sub.3 is less than 0.1 mole %. The glass can be characterized by a substantially pink color upon exposure to an incandescent light source and a substantially green color upon exposure to a fluorescent light source. The glass can optionally include one or more fluorescent ions selected from oxides of Cu, Sn, Mn, Ag, Sb, Ce, Sm, Eu, Tb, Dy, Tm, and combinations thereof, such that a total concentration of fluorescent ions is from greater than or equal to about 0.01 mole % to less than or equal to about 5.0 mole %.

A glass that includes Pr.sub.2O.sub.3 and Nd.sub.2O.sub.3 such that the sum of Pr.sub.2O.sub.3 and Nd.sub.2O.sub.3 is greater than 0.2 mole % and the ratio of Nd.sub.2O.sub.3 to Pr.sub.2O.sub.3 is greater than 0.5 and less than 3. Further, the sum of any chromophores in the glass from the group V.sub.2O.sub.5, Cr.sub.2O.sub.3, MnO, Mn.sub.2O.sub.3, Fe.sub.2O.sub.3, CoO, Co.sub.3O.sub.4, CuO, NiO, Nb.sub.2O.sub.5, CeO.sub.2, Ho.sub.2O.sub.3 and Er.sub.2O.sub.3 is less than 0.1 mole %. The glass can be characterized by a substantially pink color upon exposure to an incandescent light source and a substantially green color upon exposure to a fluorescent light source. The glass can optionally include one or more fluorescent ions selected from oxides of Cu, Sn, Mn, Ag, Sb, Ce, Sm, Eu, Tb, Dy, Tm, and combinations thereof, such that a total concentration of fluorescent ions is from greater than or equal to about 0.01 mole % to less than or equal to about 5.0 mole %.

A system and method for producing period-coded glass containers is disclosed. One method comprises producing a glass container from a traceable material composition associated with a predetermined time period, manufacturing facility, and/or time of container manufacture, where the glass container is configured to be analyzed for the traceable material composition, and at least one of constituents of or amounts of materials in the traceable material composition is configured to be identified and cross-referenced to a cross-reference schedule for identifying the time period, manufacturing facility, and/or time of container manufacture in which the glass container was produced.

A system and method for producing period-coded glass containers is disclosed. One method comprises producing a glass container from a traceable material composition associated with a predetermined time period, manufacturing facility, and/or time of container manufacture, where the glass container is configured to be analyzed for the traceable material composition, and at least one of constituents of or amounts of materials in the traceable material composition is configured to be identified and cross-referenced to a cross-reference schedule for identifying the time period, manufacturing facility, and/or time of container manufacture in which the glass container was produced.

The invention relates to glass ceramics and glasses with cerium and tin content, which comprise the following components: TABLE-US-00001 Component wt.-% SiO.sub.2 42.0 to 80.0 Al.sub.2O.sub.3 0.1 to 42.0 Cerium, calculated as CeO.sub.2 0.5 to 10.0 Tin, calculated as SnO 0.1 to 4.0
and which are suitable in particular for the preparation of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth.

The invention relates to glass ceramics and glasses with a europium content, containing the following components: TABLE-US-00001 Component wt.-% SiO.sub.2 30.0 to 75.0 Al.sub.2O.sub.3 10.0 to 45.0 Europium, calculated as Eu.sub.2O.sub.3 0.05 to 5.0 
and which are suitable in particular for the production of restorations, the fluorescence properties of which largely correspond to those of natural teeth.

The invention relates to glass ceramics and glasses with a europium content, containing the following components: TABLE-US-00001 Component wt.-% SiO.sub.2 30.0 to 75.0 Al.sub.2O.sub.3 10.0 to 45.0 Europium, calculated as Eu.sub.2O.sub.3 0.05 to 5.0 
and which are suitable in particular for the production of restorations, the fluorescence properties of which largely correspond to those of natural teeth.

Provided is a manufacturing method for a thin phosphor glass plate by which a thin phosphor glass plate can be more certainly produced. A manufacturing method includes the steps of: preparing a phosphor glass base material 21 having a first principal surface 21a and a second principal surface 21b opposed to each other; placing the phosphor glass base material 21 on a stage 22 and fixing the second principal surface 21b onto the stage 22; and polishing the first principal surface 21a of the phosphor glass base material 21 with a polishing member 23 including an abrasive layer 24.

Provided is a manufacturing method for a thin phosphor glass plate by which a thin phosphor glass plate can be more certainly produced. A manufacturing method includes the steps of: preparing a phosphor glass base material 21 having a first principal surface 21a and a second principal surface 21b opposed to each other; placing the phosphor glass base material 21 on a stage 22 and fixing the second principal surface 21b onto the stage 22; and polishing the first principal surface 21a of the phosphor glass base material 21 with a polishing member 23 including an abrasive layer 24.