| abstract |
(57) [Summary] (Corrected) [Purpose] Providing glass production that exhibits excellent transparency up to the infrared region of the electromagnetic radiation spectrum. Composition: essentially 40-80% Ga 2 expressed in mole percentage S 3 , 0-35% RS x , where r is aluminum, antimony, A group consisting of arsenic, germanium, and indium. 1-50% Ln 2 S 3 , at least one network-forming cation selected from the group, wherein Ln is at least one cation selected from the group consisting of rare earth metal cations and yttrium, 1 -45% MS x , where M is at least one modified metal cation selected from the group consisting of barium, cadmium, calcium, lead, lithium, mercury, potassium, silver, sodium, thallium, and tin; and It consists of 0-10% total chloride and / or fluoride. |