Patent ID: 9321673
Filing Date: 2016-04-26
CPC Classification: C03C

Claim Text:
1. A near-infrared absorption glass comprising P 5+ , Al 3+ , Li + , R 2+ , Cu 2+ , O 2− and F − , wherein the R 2+ is 54-65% by cation weight and comprises a combination of Mg 2+ , Ca 2+ , Sr 2+ and Ba 2+ ; wherein F − and O 2− comprise 100% of the anion content and O 2− comprises 40-55% by anion weight; and wherein the near-infrared absorption glass comprises: a transmissivity of more than 80% at 400 nm, more than 85% at 500 nm, and more than 58% at 600 nm, further wherein the transmissivity is measured through a near-infrared absorption glass having a thickness of 1 mm; a water resistant stability D W of the near-infrared absorption glass is Class 1; and an acid resistant stability D A is above Class 4.