Highly loaded fluorescent lamp

H - Electricity – 01 – J

Patent

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Details

H01J 61/44 (2006.01) H01J 61/48 (2006.01) H01J 65/04 (2006.01)

Patent

CA 2414823

A highly loaded fluorescent lamp (10) (Fig. 1) comprises a hollow, translucent glass body (12) containing a medium capable of generating at least several wavelengths of UV radiation. A plurality of phosphors is disposed on the inside surface of the glass body (12), the plurality of phosphors visible radiation upon exposure to the UV radiation. At least one of the plurality of phosphors is subject to degradation upon long-term exposure to one of the at least one of several wavelengths of UV radiation. The at least one of the plurality of phosphors subject to degradation is installed (Fig. 12) adjacent the inside surface (14) of the glass body (12) to form a first layer (16); and the remainder of the plurality of phosphors is disposed on the first layer to form a second layer (18), the second layer not being subject to long-term degradation upon exposure to the UV radiation.

Une lampe fluorescente (10) fortement chargée (Figure 1) comprend un corps creux (12) en verre translucide qui contient un milieu capable de générer au moins plusieurs longueurs d'onde de rayonnement UV. Plusieurs luminophores sont disposés sur la surface intérieure du corps en verre (12), ces luminophores émettant un rayonnement visible lorsqu'ils sont exposés au rayonnement UV. Au moins un de ces luminophores subit une dégradation lors d'une exposition de longue durée à une des diverses longueurs d'onde de rayonnement UV. Le ou les luminophores soumis à une dégradation est /sont installé(s) (figure 12) à côté de la surface intérieure (14) du corps en verre (12) pour former une première couche (16); et les luminophores restants sont disposés sur la première couche pour former une deuxième couche (18), cette deuxième couche ne subissant pas de dégradation à long terme lorsqu'elle est exposée au rayonnement UV.

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