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US 12,622,994 B2Granted
Light fixture with UV disinfection
AssigneeApogee Lighting Holdings, LLC
InventorsMaxim S. Shatalov, Michael Handerhan
Life of this patent
Estimating the term…
Abstract
A light fixture includes a housing forming a cavity to permit airflow therethrough. A filter is disposed within the airflow of the cavity. An ultraviolet light emitting diode is disposed within the cavity and is directed to concurrently treat the airflow and the filter to destroy biomaterial therein.
Claims26
A light fixture, comprising:
- a housing forming a cavity and having an inlet to permit airflow therethrough;
- a first ultraviolet (UV) light emitting diode (LED) external to the cavity to direct UV light from the first UV LED to treat the airflow prior to entering the inlet;
- a filter disposed within the airflow of the cavity;
- and
- a second UV LED disposed within the cavity, the second UV LED being directed to concurrently treat the airflow and the filter to destroy biomaterial therein.
2 more elements
A light fixture, comprising:
- a housing forming a cavity and having an inlet to permit airflow therethrough;
- an ultraviolet radiation source including a first ultraviolet (UV) light emitting diode (LED) external to the housing to direct UV light from the first UV LED to treat the airflow prior to entering the inlet;
- a reflector being opaque to the UV light, the reflector having a reflective surface with a distant region and an adjacent region, wherein at least a portion of the adjacent region is located close to and below the ultraviolet radiation source, and the distant region is further from the ultraviolet radiation source than the adjacent region and extends to a position above the ultraviolet radiation source such that ultraviolet radiation from the ultraviolet radiation source is directed upward to treat a volume of air before entering the inlet.
A light fixture, comprising:
- a housing forming a cavity to permit airflow therethrough;
- a forced convection device to draw air into the cavity through an inlet;
- an ultraviolet light resistant filter disposed within the airflow of the cavity;
- a first ultraviolet (UV) light emitting diode (LED) disposed within the cavity, the first UV LED being directed to concurrently treat the airflow and the filter to destroy biomaterial therein;
- a reflector coupled to the housing to direct light emitted from a second UV LED external to the cavity to treat the airflow prior to entering the inlet;
- and
- a controller to control airflow and an intensity of radiation of the at least one light emitting diode, the controller including a programmable dose module to store a required radiation dose, the controller controlling power and time based on sensor feedback to ensure a radiation dose is achieved.
4 more elements
Dependencies are inferred from the claim text.