Ultraviolet transmission visible light absorption glass and ultraviolet transmission visible light absorption filter

摘要

PROBLEM TO BE SOLVED: To provide an ultraviolet-transmitting visible light-absorbing glass that reduces environmental load, has a selectively high transmittance in a wavelength range of 350-370 nm, and resists degradation due to solarization.SOLUTION: An ultraviolet-transmitting visible light-absorbing glass is substantially free of Pb, As, Cd and Cr, and contains CoO of 0.1-2 mass%, NiO of 1-5 mass%, TiOof more than 0 mass% and 1 mass% or less, and NbOof 0.1-10 mass%, with the total content of TiOand NbOof 0.1-10 mass%.SELECTED DRAWING: None