Abstract:
A highly refractive, low-density phototropic glass in which the carriers of phototropy are precipitates containing silver, halogens and copper oxide, and which has a density equal to or less than 3.0 g/cm.sup.3, a refractive index equal to or greater than 1.60 and an Abbe number equal to or greater than 40, consisting essentially of, in % by weight on an oxide basis:SiO.sub.2 : 35-50B.sub.2 O.sub.3 : 13.5-21.SIGMA.SiO.sub.2 and B.sub.2 O.sub.3 : 50-70Li.sub.2 O: 0.0-2.5Na.sub.2 O: 0.0-4.0K.sub.2 O: 0.0-10.0.SIGMA.Alkali metal oxides: 4-14BaO: 5.0-10.5TiO.sub.2 : 3.5-6.5ZrO.sub.2 : 4.5-9.5Nb.sub.2 O.sub.3 : 5.0-11.5,and in addition to the basic glass composition, carriers of phototropy consisting essentially of, in % by weight:Ag.sub.2 O; 0.05-0.25Br: 0.07-0.25Cl: 0.06-0.35.SIGMA.Br and Cl: .ltoreq.0.5CuO: 0.003-0.015.
Abstract translation:折射率低于1.0摩尔/立方厘米,折射率等于或大于1.60的高折射,低密度光特性玻璃,其中光致载流子沉淀含有银,卤素和氧化铜,并且具有等于或小于3.0g / 基本上以氧化物为基准的重量%组成的阿贝数:SiO 2:35-50 B 2 O 3:13.5-21 SIGMA SiO 2和B 2 O 3:50-70 Li 2 O:0.0-2.5 Na 2 O: 4.0 K2O:0.0-10.0 SIGMA碱金属氧化物:4-14 BaO:5.0-10.5 TiO 2:3.5-6.5 ZrO 2:4.5-9.5 Nb 2 O 3:5.0-11.5,除了碱性玻璃组合物外,光熵载体基本上由 ,重量%:Ag2O; 0.05-0.25 Br:0.07-0.25 Cl:0.06-0.35 SIGMA Br和Cl:0.5 CuO:0.003-0.015。
Abstract:
A highly refractive, low-density phototropic glass in which the carriers of phototropy are precipitates containing silver, halogens and copper oxide, and which has a density equal to or less than 3.0 g/cm.sup.3, a refractive index equal to or greater than 1.60 and an Abbe number equal to or greater than 40, consisting essentially of, in % by weight on an oxide basis:______________________________________ SiO.sub.2 35-50 B.sub.2 O.sub.3 13.5-21 .SIGMA.SiO.sub.2 and B.sub.2 O.sub.3 50-70 Li.sub.2 O 0.0-2.5 Na.sub.2 O 0.0-4.0 K.sub.2 O 0.0-10.0 .SIGMA.Alkali metal oxides 4-14 BaO.sub.2 5.0-10.5 TiO.sub.2 3.5-6.5 ZrO.sub.2 4.5-9.5 Nb.sub.2 O.sub.3 5.0-11.5, ______________________________________ the total of the foregoing oxides being 100% by weight, and in addition to the basic glass composition, carriers of phototropy consisting essentially of, in % by weight:______________________________________ Ag.sub.2 O 0.05-0.25 Br 0.07-0.25 Cl 0.06-0.35 .SIGMA.Br and Cl .ltoreq.0.5 CuO 0.003-0.015. ______________________________________
Abstract:
The use of licenses is monitored in a computer or communication system which has a plurality of terminals and in which at least one license is associated with at least one user. The use of the license or licenses by each user is recorded during a defined period after the license starts to run. Based on the recording result, a message is generated and sent to the user's terminal at least if the scope of use falls short of a predeterminable value.
Abstract:
Dark blue dyed furnace sight glass of soda-lime-silica further containing carbon and oxides of iron and cobalt with substantially no infrared transmission and which sight glass affords a view of details in the melting operation. Other ingredients may include K.sub.2 O, MgO, Al.sub.2 O.sub.3 or ZrO.sub.2.
Abstract:
A phototropic multilayered glass sheet incorporating at least two interfacially laminated layers, one layer consisting of a nonphototropic carrier glass, and at least one other layer consisting of a phototropic glass. In manufacture, at least one of the glass streams is characterized by having a viscosity of less than 10.sup.7.6 d PAS at the location where the streams are brought together.