公开(公告)号：US3960579A

公开(公告)日：1976-06-01

申请号：US566306

申请日：1975-04-09

申请人： Heinz Broemer ,  Norbert Meinert ,  Johann Spincic

发明人： Heinz Broemer ,  Norbert Meinert ,  Johann Spincic

IPC分类号： C03C3/062 ,  C03C3/064 ,  C03C3/07 ,  C03C3/072 ,  C03C3/04 ,  C03C3/08 ,  C03C3/10 ,  C03C3/30

CPC分类号： C03C3/062 ,  C03C3/064 ,  C03C3/07 ,  C03C3/072 ,  Y10S501/901 ,  Y10S501/903

摘要： Optical silicate glasses containing titanium dioxide and having a high index of refraction and high dispersion are composed of1 % to 10 %, by weight, of silicon dioxide SiO.sub.2,30 % to 50 %, by weight, of barium oxide BaO,18 % to 24 %, by weight, aluminum oxide Al.sub.2 O.sub.3, and21 % to 30 %, by weight, of titanium dioxide TiO.sub.2.In such glasses the barium oxide can be replaced partially by sodium oxide Na.sub.2 O, beryllium oxide BeO, calcium oxide CaO, strontium oxide SrO, cadmium oxide CdO, gadolinium oxide Ga.sub.2 O.sub.3, indium oxide In.sub.2 O.sub.3, or yttrium oxide Y.sub.2 O.sub.3. Likewise, the silicon dioxide therein can be replaced partially by boron trioxide B.sub.2 O.sub.3, lead monoxide PbO, germanium dioxide GeO.sub.2, stannic oxide SnO.sub.2, zirconium oxide ZrO.sub.2, hafnium oxide HfO.sub.2, or thorium oxide ThO.sub.2.

摘要翻译： 含有二氧化钛并且具有高折射率和高分散性的光学硅酸盐玻璃由1重量％至10重量％，二氧化硅二氧化硅，重量比为30重量％至50重量％的氧化钡BaO 18重量％ 24重量％的氧化铝Al 2 O 3和21重量％至30重量％的二氧化钛二氧化钛。