US 12,230,620 B2
Devices compatible with night vision equipment
James Edward Murphy, Niskayuna, NY (US); and Samuel Joseph Camardello, Ballston Spa, NY (US)
Assigned to Dolby Intellectual Property Licensing, LLC, Niskayuna, NY (US)
Filed by Dolby Intellectual Property Licensing, LLC, Niskayuna, NY (US)
Filed on Mar. 1, 2023, as Appl. No. 18/116,260.
Application 18/116,260 is a continuation of application No. PCT/US2021/048535, filed on Aug. 31, 2021.
Application PCT/US2021/048535 is a continuation in part of application No. PCT/US2021/027105, filed on Apr. 13, 2021.
Claims priority of provisional application 63/073,386, filed on Sep. 1, 2020.
Prior Publication US 2023/0246013 A1, Aug. 3, 2023
Int. Cl. G02B 23/12 (2006.01); B60R 11/02 (2006.01); G06F 1/16 (2006.01); G09G 3/20 (2006.01); G09G 3/34 (2006.01); H01L 25/16 (2023.01); H01L 33/00 (2010.01); H01L 33/50 (2010.01); B60R 11/00 (2006.01)
CPC H01L 25/167 (2013.01) [B60R 11/02 (2013.01); G02B 23/12 (2013.01); G06F 1/1613 (2013.01); G09G 3/2003 (2013.01); G09G 3/3406 (2013.01); H01L 33/0062 (2013.01); H01L 33/502 (2013.01); B60R 2011/0005 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A device used in conjunction with night vision equipment, the device comprising an LED light source optically coupled and/or radiationally connected to a phosphor material comprising a green-emitting phosphor and a red-emitting phosphor of formula I:
AxMFy:Mn4+  I
wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof, x is an absolute value of a charge of the MFy ion; and y is 5, 6 or 7; and wherein the device limits emission of wavelengths longer than 650 nm to less than 1.75% of total emission.