Apparatus for radiation treatment with a homogeneous UVB distribution

Abstract

An apparatus (1) for treatment with radiation for personal care, comprising a housing (2) provided with a UV source (3) and a wall (4) made of UV-transparent material which covers the housing (2) and which has a central area (7) and side areas (8) adjoining the central area (7). The wall (4) has a lower transmission to radiation with a wavelength <320 nm near the central area (7) than near the side areas (8). Thus the effective radiation energy of radiation with a wavelength <320 nm reaching the side portions of the irradiation plane (9) approximates a value of 0.14 W/m2 (European standard EN 60335-2-27), while the effective radiation energy of radiation with a wavelength <320 nm reaching the central portion of the irradiation plane (9) also approximates this value. This results in a practically uniform distribution of effective radiation energy of radiation with a wavelength <320 nm over the radiation surface (9) as a whole. A tanning result which is as uniform as possible is thus achieved in a time period which is as short as possible.

Dependencies are inferred from the claim text.