Light conversion systems, methods, and devices

Patent metadata

Field	Value
Publication number	US-12496368-B2
Application number	US-202117404720-A
Country	US
Kind code	B2
Filing date	Aug 17, 2021
Priority date	Aug 17, 2021
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

A light assembly may comprise: a light array comprising a plurality of light emitting diodes (LEDs), each light emitting diode (LED) configured to emit an electromagnetic radiation having a wavelength, the wavelength of each LED being different, a first LED in the light array configured to emit a first wavelength between 414 nm and 474 nm; and a non-linear optical layer disposed adjacent to the first LED, the nonlinear optical layer configured to output the first wavelength and a second wavelength, the second wavelength being between 207 nm and 237 nm.

First claim

What is claimed is:

1 . A sanitization system, comprising:
a passenger service unit including a light assembly, the light assembly comprising: a first light emitting diode (LED) configured to emit a first electromagnetic radiation having a first wavelength toward a seat in a row of a cabin of an aircraft; a second LED configured to emit a second electromagnetic radiation having a second wavelength toward the seat in the row of the cabin of the aircraft, the second wavelength being different from the first wavelength; a third LED configured to emit a third electromagnetic radiation having a third wavelength toward the seat in the row of the cabin of the aircraft, the third wavelength being between 414 nanometers (nm) and 474 nm, the first wavelength and the second wavelength different from the third wavelength; and a nonlinear optical layer, the nonlinear optical layer in optical communication with the third LED, the nonlinear optical layer configured to receive the third electromagnetic radiation from the third LED and output a portion of the third electromagnetic radiation as a fourth wavelength toward the seat in the row of the cabin of the aircraft, the fourth wavelength being between 207 nm and 237 nm, the fourth wavelength being different from the first wavelength, the second wavelength, and the third wavelength.

2 . The sanitization system of claim 1 , wherein the first wavelength is between 600 nm and 740 nm.

3 . The sanitization system of claim 2 , wherein the second wavelength is between 500 nm and 565 nm.

4 . The sanitization system of claim 1 , wherein the nonlinear optical layer is disposed adjacent to the first LED, the second LED, and the third LED.

5 . The sanitization system of claim 1 , further comprising a fourth LED configured to emit a fourth electromagnetic radiation having a fifth wavelength toward the seat in the row of the cabin of the aircraft, the fifth wavelength in accordance with the third wavelength.

6 . The sanitization system of claim 5 , wherein the nonlinear optical layer is only disposed adjacent to the third LED.

7 . The sanitization system of claim 6 , wherein the third LED is operable independent of the first LED, the second LED and the fourth LED, and wherein the first LED, the second LED, and the fourth LED are configured to generate blended light independent of the fourth LED.

Assignees

• Be Aerospace Inc
• Goodrich Lighting Systems Inc

Inventors

• Pearson Matthew R
• St Rock Brian
• Johannessen Eric

Classifications

• A61L2103/75

  Room floors or walls · CPC title

• A61L2202/14

  Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs · CPC title

• A61L2202/11

  Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps · CPC title

• A61L2/10 Primary

  Ultraviolet [UV] radiation · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title