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US 8,540,757 B2Granted
Phototherapy apparatus using excimer radiation
AssigneeUshiodenki Kabushiki Kaisha
InventorsTaku Sumitomo, Tatumi Hiramoto, Akimichi Morita
Life of this patent
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Abstract
A phototherapy device using excimer radiation in which, by skillful use of the individual peak wavelength of 308 nm and of the emission range of shorter wavelengths than 308 nm, the therapy effect is enhanced, and in which, at the same time, harm can be reduced is achieved using a XeCl excimer lamp and in which diseased sites of skin disorders are irradiated with UV-B radiation with an optical filter being used for changing the spectral shape of the UV-B radiation with which the diseased sites are irradiated.
Claims10
Phototherapy device using excimer radiation, comprising:
- a dielectric barrier discharge XeCl excimer lamp which radiates in the wavelength range of 270 nm to 320 nm for irradiation of diseased sites afflicted by a skin disorder with UV-B radiation, and
- an optical filter unit comprising at least one optical filter having a transmittance of 0% below a wavelength of 280 nm for changing the wavelength range and shape of the spectrum of the UV-B radiation with which the diseased sites are irradiated.
Dependencies are inferred from the claim text.