Phototherapy Mask With Quantum Dot Phosphors
AssigneeNanoco Technologies Ltd.
InventorTorsten Schanze
Life of this patent
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Abstract
A phototherapy device comprises a face mask having a rigid (or semi-rigid) shell contoured to the human face. A flexible array of LEDs is affixed to the inner surface of the mask. A flexible, quantum dot-containing film is situated over the flexible array of LEDs. The quantum dots in the QD-containing film are selected to photo-luminesce at one or more particular wavelengths in response to photoexcitation by the light emitted from the LEDs. The LEDs emit “primary light” and the quantum dots down-convert at least a portion of the primary light to “secondary light.” The flexible, quantum dot-containing film may be interchangeable such that the wavelength(s) of the secondary light may be tailored to various phototherapy treatment regimes.
Claims21
A face mask comprising:
- a primary light source providing light at a first wavelength;
- a secondary light source that emits light at a second wavelength in response to excitation by light from the primary light source.
A face mask comprising:
- a primary light source providing light at a first wavelength and a third wavelength said third wavelength being in the infrared portion of the electromagnetic spectrum;
- and,
- a secondary light source that emits light at a second wavelength in response to excitation by light from the primary light source.
A phototherapy face mask comprising:
- an outer shell having an inner surface contoured to the human face;
- a flexible array of light-emitting diodes affixed to the inner surface of the shell;
- a flexible quantum dot-containing film substantially covering the array of light-emitting diodes;
- and
- a transparent or translucent contoured inner shell.
A phototherapy method comprising:
- providing a shell having an inner surface contoured to the human face;
- providing a flexible array of light-emitting diodes affixed to the inner surface of the shell;
- providing a first, replaceable, flexible quantum dot-containing film substantially covering the array of light-emitting diodes said first, flexible quantum dot-containing film emitting light at a first wavelength in response to photo-excitation by light from the array of light-emitting diodes;
- exposing the face of a patient wearing the shell provided with the flexible array of light-emitting diodes affixed to the inner surface of the shell and the first, replaceable, flexible, quantum dot-containing film substantially covering the array of light-emitting diodes to light of the first wavelength by activating the light-emitting diodes for a first period of time;
- replacing the first, replaceable, flexible, quantum dot-containing film with a second, flexible, quantum dot-containing film said second, flexible, quantum dot-containing film emitting light at a second wavelength in response to photo-excitation by light from the array of light-emitting diodes;
- and
- exposing the face of a patient wearing the shell provided with the flexible array of light-emitting diodes affixed to the inner surface of the shell and the second, flexible, quantum dot-containing film substantially covering the array of light-emitting diodes to light of the second wavelength by activating the light-emitting diodes for a second period of time.
Dependencies are inferred from the claim text.