Society of Glass Technology · [Sheffield] · leaf 270
7-4 1-5202 885 58-8 263 622 0-703 G 15 24-0 1-5357 921 58-2 273 648 0-703 D 20 29-7 1-5483 957 57-3 284 673 0-703 E 30 38-8 1-5698 1015 56-1 300 715 0-704 F 40 45-8 1-5895 1067 55-3 315 752 0-705 * For further information on refractive index, see this Journal, Trans.,.pp. 10 and 25. THE DEVELOPMENT… … 1050 1000 950 g 900 15 20 25 Molecules BaO. Fig. 2. varies with the molecular content of barium oxide in the twoseries. The following remarks have to be made regarding refractiveindex. (1) In both series the refractive index for the D line increasesas the molecular content of barium oxide…
Glass
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