Patent ID: 6755848
Filing Date: 2004-06-29
Classification: A61N

Abstract:
A light-ray therapeutic apparatus comprising:a xenon illuminating lamp including a lamp body, a lamp holder provided in said lamp body, a xenon lamp held by said lamp holder, a reflecting mirror for reflecting light emitted from said xenon lamp, and a multilayer film coating-type spectral correction filter provided in a front portion of said lamp body; wherein, of light emitted from said xenon lamp, energy of ultraviolet rays with a wavelength of not longer than 280 nm is cut off perfectly by said spectral correction filter, and spectral coincidence in an ultraviolet wavelength range of 280-400 nm, spectral coincidence in a visible wavelength range of 380-780 nm, and spectral coincidence in an infrared wavelength range of 780-2,500 nm are made 100Â±30% respectively, while the spectral coincidence is defined as a ratio of relative energy distribution of light of said xenon illuminating lamp to relative energy distribution of reference sunlight.