US 12,391,601 B2
Glass material that transmits light beams having wavelength range from visible light to far infrared light
Tatsuya Suetsugu, Izumisano (JP); Kazuhiro Nakano, Izumisano (JP); Noriyoshi Higashi, Izumisano (JP); and Takao Yamaguro, Izumisano (JP)
Assigned to ISUZU GLASS LTD, Osaka (JP)
Appl. No. 17/425,419
Filed by ISUZU GLASS LTD., Izumisano (JP)
PCT Filed Jan. 23, 2020, PCT No. PCT/JP2020/002355
§ 371(c)(1), (2) Date Jul. 23, 2021,
PCT Pub. No. WO2020/153435, PCT Pub. Date Jul. 30, 2020.
Claims priority of application No. 2019-011091 (JP), filed on Jan. 25, 2019.
Prior Publication US 2022/0185723 A1, Jun. 16, 2022
Int. Cl. C03C 3/32 (2006.01); C03C 4/10 (2006.01); G02B 3/04 (2006.01)
CPC C03C 3/323 (2013.01) [C03C 4/10 (2013.01); G02B 3/04 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A glass material allowing rays having a wavelength in the region from visible light to far-infrared light to pass through,
the glass material consisting of, in terms of molar concentration:
50 to 70% of S,
15 to 30% of Ge,
5 to 20% of Ga,
0.5 to 15% of Ba,
3 to 15% of at least one member selected from the group consisting of Cl, Br, and I, and more than 0% to 15% or less of Rb and/or Cs,
with the proviso that when the C1 is present alone, its molar concentration is 6 to 15%.