Patent ID: 6491868
Filing Date: 2002-12-10
Classification: A61L,C02F,G02B,H01J,H05B

Abstract:
A method of detecting the intensity of UV light produced by a bulb assembly, the method comprising:providing a bulb assembly having first and second ends and an intermediate portion extending therebetween, the first and second ends having respective filaments therein; providing a light pipe having a flourescent dye therein, the light pipe including a bulb face, a filament face and an emitting face, the light pipe being configured to direct light incident upon the bulb face toward the emitting face; orientating the bulb face to primarily receive light from the intermediate portion of the bulb assembly; exciting the bulb assembly to produce UV light and visible light; directing UV light from the intermediate portion of the bulb assembly to strike the bulb face thereby causing the light pipe to fluoresce and visible light to be emitted from the emitting face of the light pipe while light from the at least one of the first and second filaments strikes the filament face; and detecting the relative intensity of the visible light emitted from the emitting face of the light pipe.