Phototherapy method for treating psoriasis

Abstract

A system and method for phototherapy, including skin tanning, lupus phototherapy, teeth whitening, hair growth and psoriasis therapies, are provided. The system includes a chamber adapted for at least one type of phototherapy and at least on UV LED, at least one a nanostructure UV light emitting device or a combination of UV LEDs and nanostructure UV light emitting devices.

1 - 8 . (canceled) 
     
     
         9 . A method for conducting lupus phototherapy, comprising providing UV light from a nanostructure UV light emitting device onto the skin of a human subject having lupus, wherein the UV light emitting device emits UV light in a wavelength range suitable for performing lupus phototherapy. 
     
     
         10 . The method of  claim 9 , further comprising adjusting the wavelength range of the UV light during the phototherapy. 
     
     
         11 . The method of  claim 9 , wherein the chamber comprises a bed or a booth. 
     
     
         12 . The method of  claim 9 , wherein the nanostructure UV light emitting device comprises at least one of a nanoparticle and a nanowire UVA light emitting device, the method further comprising:
 providing UV excitation-radiation of a first peak wavelength from a UV excitation source to the UV light emitting device; and   emitting the UV light having a second UV peak wavelength longer than the first peak wavelength from the UV light emitting device in response to the provided UV excitation radiation.   
     
     
         13 - 16 . (canceled) 
     
     
         17 . A method for conducting psoriasis phototherapy, comprising providing UV light from a nanostructure UV light emitting device onto the skin of a human subject having psoriasis, wherein the UV light emitting device emits UV light in a wavelength range suitable for performing psoriasis phototherapy. 
     
     
         18 . The method of  claim 17 , wherein the nanostructure UV light emitting device comprises at least one of a nanoparticle and a nanowire UV A light emitting device, the method further including:
 providing UV excitation radiation of a first peak wavelength from a UV excitation source to the UV light emitting device; and   emitting the UV light having a second UV peak wavelength longer than the first peak wavelength from the UV light emitting device in response to the provided UV excitation radiation.   
     
     
         19 . The method of  claim 18 , wherein the UV light is emitted in an emission peak at or between 312 and 311 um. 
     
     
         20 . The method of  claim 19 , wherein the continuous emission band has a full width half maximum of about 0.1 to 2 nm. 
     
     
         21 - 40 . (canceled) 
     
     
         41 . A method for conducting lupus phototherapy, comprising providing UV light from at least one UV emitting LED onto the skin of a human subject having lupus, wherein the at least one UV emitting LED emits UV light in a wavelength range suitable for performing lupus phototherapy. 
     
     
         42 . The method of  claim 41 , wherein the UV light comprises light with a wavelength of about 340 nm to 400 nm. 
     
     
         43 . The method of  claim 41 , further comprising adjusting the wavelength range of the UV light during the phototherapy. 
     
     
         44 - 46 . (canceled) 
     
     
         47 . A method for conducting psoriasis phototherapy, comprising providing UV light from at least one UV emitting LED onto the skin of a human subject having psoriasis, wherein the at least one UV emitting LED emits UV light in a wavelength range suitable for performing psoriasis phototherapy. 
     
     
         48 . The method of  claim 47 , wherein the UV light is emitted in an emission band with a peak at or between 312 and 311 nm. 
     
     
         49 . The method of  claim 48 , wherein the emission band has a full width half maximum of about 0.1 to 2 nm. 
     
     
         50 - 57 . (canceled) 
     
     
         58 . The method of  claim 41 , further comprising a direct line voltage supply that has a near unity power factor LED transfer function utilizing a resistor ladder network. 
     
     
         59 . The method of  claim 47 , further comprising a direct line voltage supply that has a near unity power factor LED transfer function utilizing a resistor ladder network.