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US 9,308,289 B2Granted
Air purifying luminaire
AssigneeKoninklijke Philips N.V.
InventorsEugene Graff, Carlton B. Plunk
Life of this patent
Estimating the term…
Abstract
A luminaire system having a lamp compartment and sterilization compartment permitting both illumination and the sterilizing of airborne bacteria. The sterilization compartment has one or more germicidal lamps to sterilize airborne bacteria when air is circulated through the luminaire system. The lamp compartment has one or more lamps to illuminate the desired outside environment away from the system.
Claims20
An air purifying luminaire comprising:
- a light fixture having a first compartment adjacent a second compartment, said first compartment containing one or more germicidal lamps concealed in said first compartment for emitting ultraviolet light, and said second compartment containing one or more lamps illuminating a desired area away from said light fixture;
- and
- a fixture inlet spaced from and in flow communication with a fixture outlet thereby forming a throughway passing adjacent said one or more germicidal lamps, whereby a cooling convection flow of air enters said light fixture through said fixture inlet and passes said one or more germicidal lamps concealed in said light fixture and exits said light fixture through said fixture outlet when said one or more germicidal lamps is in operation, thereby sterilizing said convection flow of air, wherein the one or more lamps illuminating the desired area is not a germicidal lamp, wherein said first compartment includes one or more baffles including a first baffle defining a wall located inside said first compartment, between said one or more germicidal lamps and the fixture outlet and separated from the fixture outlet, and extending in a direction of a length of said one or more germicidal lamps for sufficiently reducing the ultraviolet light emitted from said one or more germicidal lamps from leaking outwardly away from the fixture outlet, wherein the one or more baffles include absorptive coating on interior surfaces of the one or more baffles for absorbing the ultraviolet light, wherein the interior surfaces are located on sides of the one or more baffles facing the one or more germicidal lamps.
A luminaire system for air purification comprising:
- a luminaire fixture having a lamp compartment and a germicidal lamp compartment, said germicidal lamp compartment containing one or more germicidal lamps;
- said germicidal lamp compartment having one or more air inlet apertures connected by a throughway to one or more air outlet apertures, whereby air travels into said one or more air inlet apertures through said throughway and exits out of said germicidal lamp compartment through said one or more air outlet apertures;
- said one or more germicidal lamps of said germicidal lamp compartment being configured to emit ultraviolet light into said throughway within said luminaire fixture;
- and
- one or more illuminating lamps of said lamp compartment being configured to emit illuminating light away from said luminaire fixture to a desired outside environment, wherein the one or more illuminating lamps is not a germicidal lamp,
- wherein said germicidal lamp compartment includes one or more baffles defining a wall located inside said germicidal lamp compartment, between said one or more germicidal lamps and the one or more air outlet apertures and separated from the one or more air outlet apertures, and extending in a direction of a length of said one or more germicidal lamps for sufficiently reducing the ultraviolet light emitted from said one or more germicidal lamps from leaking outwardly away from said luminaire system, wherein the one or more baffles include absorptive coating on interior surfaces of the one or more baffles for absorbing the ultraviolet light, wherein the interior surfaces are located on sides of the one or more baffles facing the one or more germicidal lamps.
3 more elements
A luminaire system comprising:
- a lamp compartment in flow communication with a sterilization compartment, wherein said sterilization compartment includes one or more ultraviolet lamps for emitting ultraviolet light, and said lamp compartment having one or more illuminating lamps illuminating a desired area away from said luminaire system;
- and
- a system inlet in fluid communication with a system outlet thereby forming a throughway extending through said sterilization compartment and said lamp compartment, wherein a cooling convection flow of air enters into said system inlet and passes adjacent said one or more ultraviolet lamps of said sterilization compartment whereby said air is sterilized, and said sterilized air exits said luminaire system through said system outlet, wherein the one or more illuminating lamps is not a germicidal lamp,
- wherein said sterilization compartment includes one or more baffles defining a wall located inside said sterilization compartment, between said one or more ultraviolet lamps and the system outlet and separated from the system outlet, and extending in a direction of a length of said one or more ultraviolet lamps for sufficiently reducing the ultraviolet light emitted from said one or more ultraviolet lamps from leaking outwardly away from said luminaire system, wherein the one or more baffles include absorptive coating on interior surfaces of the one or more baffles for absorbing the ultraviolet light, wherein the interior surfaces are located on sides of the one or more baffles facing the one or more ultraviolet lamps.
1 more element
Dependencies are inferred from the claim text.