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US 12,421,161 B2Granted
Infrared-transmitting glass
AssigneeNippon Electric Glass Co., Ltd.
InventorsYoshimasa Matsushita, Fumio Sato
Life of this patent
Estimating the term…
Abstract
Provided is a thermally stable and inexpensive infrared-transmitting glass. An infrared-transmitting glass contains, in terms of % by mole, over 0 to 9% Ge, over 0 to 50% Ga, 50 to 90% Te, 0 to 40% Si+Al+Ti+Cu+In+Sn+Bi+Cr+Sb+Zn+Mn+Cs+Ag+As+Pb, and 0 to 40% F+Cl+Br+I.
Claims3
An infrared-transmitting glass containing, in terms of % by mole, over 0 to 5% Ge, 18 to 50% Ga, 50 to 90% Te, 0 to 40% Si+Al+Ti+Cu+In+Sn+Bi+Cr+Sb+Zn+Mn+Cs+Ag+As+Pb, and 0 to 40% F+Cl+Br+I, wherein the infrared-transmitting glass contains Ag and/or Sn, and the infrared-transmitting glass is substantially free of S and Se.
Dependencies are inferred from the claim text.