FLUORESCENT LAMP CAPABLE OF SLOW RELEASE OF ORGANIC EVAPORATING MATERIALS AT LOW TEMPERATURE

摘要

The present invention relates to a fluorescent lamp including a visible radiation and/or UV-radiation transmissive discharge vessel, at least one luminescent layer coated onto the inner wall of the discharge vessel for converting UV-radiation to other wavelengths of UV-A, UV-B and/or visible radiation characterized in, that at a section to which no luminescent layer is applied on the inner surface area of said discharge vessel at least one substrate layer is applied on the outer surface of this area of said discharge vessel; and/or at least a section to which luminescent layer is applied on the inner sur­ face area of said discharge vessel at least one substrate layer is applied on the outer surface of this area of said discharge vessel; whereby said substrate layer comprises at least one volatile organic ma­terial being releasable over an extended time period, whereby the volatile organic mate­rial is released by UV-radiation and/or thermal heat generated from said fluorescent lamp and, whereby at operation the temperature of the outer surface of the discharge vessel of said fluorescent lamp is = 70° C.