Abstract: The invention relates to an arrangement for optimally adjusting the UVB to UVA ratio of artificial UV light, particularly for solar cosmetic purposes, comprising at least one light source emitting in both the UVB and UVA wavelength ranges, where the major part of spectral power of the light source falls in the range between 321-400 nm, preferably between 321-365 nm, and where at least one single-layer UV filter is arranged between the light source and the irradiated surface, The invention is essentially characterised by that the transmittance of the at least one UV filter at the wavelength of 305 nm or below is lower than 5% and at the wavelength of 320 nm or above is greater than or equal to 59%, with the transmission of the filter at the wavelength of 313 nm being in the range of 12-59%.

Abstract: The invention relates to, UV-converter for transforming radiation of wavelengths above 200 nm to UVA and UVB radiation, having at least a light transmitting sheet (11, 12), with a luminescent coating (13) on one side of the sheet. According to the invention, the light transmitting sheet is of a material suitable for filtering out the UVC radiation, the luminescent coating on the surface of the light transmitting sheet is isolated from humidity, and the luminescent material comprises a phosphor for generating a UV spectrum specified for the solarium lamps. The invention further relates to UV-converter, UV lamp arrangement with the UV-converter, and a lighting unit comprising the UV lamp arrangement.

Abstract: Tanning lamp arrangement, especially for suntanning the skin surface of the human body, having at least one UV light source (2) irradiating UV light with an appropriate intensity also in the UV-A and/or UV-B spectral ranges, and having optical elements reflecting the light of the light source(s), placed upon the side of the human body opponent to the light source(s). The tanning lamp arrangement, according to the invention has at least one light source arranged for the exposure of one side of the body, placed along a particular line, essentially parallel with the vertical axis of the body, and further the light reflecting optical elements are designed as a first light reflecting surface (1) producing an uniformly scattered light for the exposure of the body.