Patent ID: 11923485
Assignee: GRIREM ADVANCED MATERIALS CO., LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC H  C  Y | IPC C  H

Claim 12:
13. The optical device according to claim 1, wherein the near-infrared luminescent material comprises one of molecular formulas comprising aSc2O3.A2O3.bCr2O3 and Ln2O3.cE2O3.dCr2O3, the element A containing at least one of elements Al and Ga and necessarily containing the element Ga, the element Ln containing at least one of elements Y, Lu and Gd and necessarily containing the element Y, and the element E containing at least one of elements Al and Ga and necessarily containing the element Ga, with 0.001≤a≤0.6, 0.001≤b≤0.1, 1.5≤c≤2, and 0.001≤d≤0.2; and the two molecular formulas have a β-Ga2O3 structure and a garnet structure, respectively.