Society of Glass Technology · [Sheffield] · leaf 128
ar CaO content is the same in glasses ofthe two series, the glass with the higher alkaline oxide contenthas the greater refractive index for the D line until a molecularcontent about 37 molecules of CaO is reached. Then the twoglasses 100SiO2,20Na2O,20K2O,37CaO and 100SiO2,10Na2O,10K2O,37CaOhave… … 1000 900 S 800 10 15 20 Molecules CaO.Fig. 2. <>-l JOURNAL OF THE SOCIETY OF GLASS TECHNOLOGY. two glasses, being 0-00995 and 0-00955 respectively. Thns the twoglasses have different refractive indices for the C and F lines. (4) In the soda-potash—lime-silica glasses of the…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
