Standard for referencing luminescence signals

Abstract

The invention discloses a standard for referencing luminescence signals, having an optically transparent base material comprising a lanthanum phosphate glass, a fluorophosphate glass, a fluor-crown glass, a lanthanum glass, a glass-ceramic formed therefrom or a lithium aluminosilicate glass-ceramic, the base material including a bulk doping with at least one constituent which is luminescent and comprises at least one rare earth and/or a nonferrous metal, in particular cobalt, chromium or manganese.

1 . A standard for referencing luminescence signals, comprising an optically transparent base material, said base material being selected from the group formed by a lanthanum phosphate glass, a fluorophosphate glass, a fluor-crown glass, a lanthanum glass, a glass-ceramic formed from a lanthanum phosphate glass, a glass-ceramic formed from a lanthanum glass, a glass-ceramic formed from a fluorophosphate glass and a lithium aluminosilicate glass-ceramic; 
 said base material further comprising a bulk doping with at least one luminescent component selected from the group formed by a rare earth and a nonferrous metal.    
   
   
       2 . The standard of  claim 1 , wherein said bulk doping comprises 0.01 to 5% by weight of at least one dopant selected from the group formed by Cr 2 O 3 , Ce 2 O 3 , Eu 2 O 3 , Tb 2 O 3 , Er 2 O 3  and Tm 2 O 3 .  
   
   
       3 . The standard of  claim 1 , wherein said bulk doping comprises at least one component selected from the group formed by cobalt, chromium and manganese.  
   
   
       4 . The standard of  claim 1 , wherein said base material is a lanthanum phosphate glass comprising (in wt.-% based on oxide content):  
     
       
         
               
               
               
             
                   
                   
               
                   
                   
               
                   
                 P 2 O 5   
                 30 to 90  
               
                   
                 La 2 O 3   
                 0 to 30 
               
                   
                 Al 2 O 3   
                 0 to 20 
               
                   
                 R 2 O 
                 1 to 20 
               
                   
                 refining agents 
                 0 to 3,  
               
                   
                   
               
                   
                   
               
           
              
              
             
             
              
              
              
              
              
              
              
             
          
         
       
     
     wherein R is at least one element selected from the group formed by the alkali metals.  
   
   
       5 . The standard of  claim 4 , wherein said base material is a lanthanum phosphate glass comprising (in wt.-% based on oxide content):  
     
       
         
               
               
               
             
                   
                   
               
                   
                   
               
                   
                 P 2 O 5   
                 50 to 80  
               
                   
                 La 2 O 3   
                 5 to 20 
               
                   
                 Al 2 O 3   
                 5 to 15 
               
                   
                 R 2 O 
                 1 to 20 
               
                   
                 refining agents 
                 0 to 3,  
               
                   
                   
               
                   
                   
               
           
              
              
             
             
              
              
              
              
              
              
              
             
          
         
       
     
     wherein R is at least one element selected from the group formed by the alkali metals.  
   
   
       6 . The standard of  claim 5 , wherein said base material comprises 5 to 15% by weight of K 2 O.  
   
   
       7 . The standard of  claim 5 , wherein said bulk doping comprises 0.01 to 5% by weight of at least one dopant selected from the group formed by Cr 2 O 3 , Ce 2 O 3 , Eu 2 O 3 , Tb 2 O 3 , Er 2 O 3  and Tm 2 O 3 .  
   
   
       8 . The standard of  claim 7 , wherein said base material is doped with from 0.05 to 0.3% by weight Er 2 O 3  and 0.5 to 2% by weight of Eu 2 O 3 .  
   
   
       9 . The standard of  claim 1 , wherein said base material is a fluorophosphate glass comprising from 5 to 40% by weight of P 2 O 5  and from 60 to 95% by weight of fluoride.  
   
   
       10 . The standard of  claim 1 , wherein said base material is a glass selected from the group formed by an optical fluorcrown glass and a lanthanum glass.  
   
   
       11 . A standard for referencing luminescence signals, comprising an optically transparent base material, said base material being selected from the group formed by a lanthanum phosphate glass and an optical fluor-crown glass; 
 said base material further comprising a bulk doping with at least one luminescent component selected from the group formed by a rare earth and a nonferrous metal;    wherein said base material comprises 0.5 to 2% by weight of La 2 O 3 , 10 to 20% by weight of B 2 O 3 , 5 to 25% by weight of SiO 2 , 10 to 30% by weight of SrO, 2 to 10% by weight of CaO, 10 to 20% by weight of BaO, 0.5 to 3% by weight of Li 2 O, 1 to 5% by weight of MgO, 20 to 50% by weight of F, and up to 1 wt.-% of refining agents.    
   
   
       12 . The standard of  claim 11 , wherein said bulk doping comprises from 3 to 100 ppm of at least one component selected from the group formed by cobalt, chromium, and manganese.  
   
   
       13 . The standard of  claim 1 , wherein said base material is an optical glass which comprises 30 to 60% by weight of La 2 O 3 , 30 to 50% by weight of B 2 O 3 , 1 to 5% by weight of SiO 2 , 1 to 15% by weight of ZnO, 2 to 10% by weight of CaO, and up to 3 wt.-% of refining agents.  
   
   
       14 . The standard of  claim 10 , wherein said bulk doping comprises from 3 to 100 ppm of at least one component selected from the group formed by cobalt, chromium, and manganese.  
   
   
       15 . The standard of  claim 11 , wherein said bulk doping comprises 0.01 to 5% by weight of at least one dopant selected from the group formed by Cr 2 O 3 , Ce 2 O 3 , Eu 2 O 3 , Tb 2 O 3 , Er 2 O 3  and Tm 2 O 3 .  
   
   
       16 . The standard of  claim 11 , wherein said base material has a water content of less than 0.01% by weight and is prepared from raw materials containing less than 100 ppm of rare earths.  
   
   
       17 . The standard of  claim 1 , wherein said base material consists of a lithium aluminosilicate glass-ceramic, and wherein said bulk doping comprises at least one component selected from the group formed by Eu 2 O 3 , Er 2 O 3 , and Sm 2 O 3 .  
   
   
       18 . The standard of  claim 1 , wherein said base material has a water content of less than 0.01% by weight and is prepared from raw materials containing less than 100 ppm of rare earths.  
   
   
       19 . The standard of  claim 10 , wherein said base material has a water content of less than 0.01% by weight and is prepared from raw materials containing less than 100 ppm of rare earths.  
   
   
       20 . A standard for referencing luminescence signals, comprising: 
 a substrate made of a material which is substantially non-luminescent;    a coating made of an optically transparent base material being selected from the group formed by a glass and a glass-ceramic, and including a doping with at least one luminescent component, wherein said coating is a vaporized and subsequently deposited material comprising said base material and said doping on said substrate.