| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a colored glass material capable of thinning the thickness of an excitation light cut filter furthermore than a conventional colored glass material by heightening excitation light shielding characteristics. <P>SOLUTION: This cobalt-containing glass includes as cation, 25-60% Si<SP POS="POST">4+</SP>, 3-19% Al<SP POS="POST">3+</SP>, 18-38% B<SP POS="POST">3+</SP>, 9-31% K<SP POS="POST">+</SP>and 0.1-1.5% Co<SP POS="POST">2+</SP>by cation display, and includes as anion, O<SP POS="POST">2-</SP>as a main component, and further includes 1-12% F<SP POS="POST">-</SP>and 0.01-2% Cl<SP POS="POST">-</SP>by anion display. <P>COPYRIGHT: (C)2012,JPO&INPIT |
