The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2025
Filed:
Jun. 20, 2022
Lumileds Llc, San Jose, CA (US);
Peter Josef Schmidt, Aachen, DE;
Thomas Diederich, Aachen, DE;
Lumileds LLC, San Jose, CA (US);
Abstract
A wavelength converting structure is provided, the wavelength converting structure including an SWIR phosphor having emission wavelengths in the range of 1600-2200 nm, the SWIR phosphor comprising a structurally disordered garnet material, a sensitizer ion, and at least one rare earth emitter ion. Also provided is a luminescent material having emission wavelength in the range of 1600-2200 nm, the luminescent material including (GdLuTmHoScRE)[ScLuCrGaAl]{GaAl}Owith RE=La, Y, Yb, Nd, Er, Ce and 0≤u≤2, 0<v≤1, 0<x≤1, 0<y≤0.5, 0≤z≤0.05, 0<a≤1, 0<b≤0.3, 0≤c≤3, 0<d≤1.8, 0≤e≤1.8. An IR emitting device including the luminescent material may provide a broad-band emission in the wavelength range of 1600-2200 nm with a continuous emission spectrum over a spectral width of at least 500 nm.