H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 9/00 (2006.01) H01J 9/24 (2006.01) H01J 61/30 (2006.01)
Patent
CA 2582735
The present invention discloses a lamp tube of a covered bulb, including a lamp body and a core column, with a filament and an exhaust pipe on the core column, characterized in that the exhaust pipe has a bent shape. The lamp tube of the covered bulb of the present invention can reduce the working temperature of the amalgam, and increase the difference between melting temperature and working temperature of the amalgam. Besides, it can also avoid the flow of the melted amalgam when the lamp is on for a long time. It is important that the lamp tube of the covered bulb for the invention can ensure that the amalgam is at the optimum working temperature, the saturated mercury vapor pressure reaches the optimum state, whereby the consistence of photo-electricity parameter will be considerably increased. It can increase the luminous flux maintaining rate for the whole lamp to prolong the service life of the lamp, because the lamp tube of the covered bulb of the invention is often placed downward during use. The amalgam cannot flow towards the lamp tube after it melts. The structure of the exhaust pipe of the lamp will limit the flow of the amalgam. The operation is simple during assembling, easy to learn and the cost is low.
La présente invention divulgue une lampe tubulaire constituée d'une ampoule recouverte, qui comprend un corps de lampe et un coeur en forme de colonne, avec un filament et un tube d'évacuation sur la colonne, caractérisé par sa forme recourbée. Cette lampe tubulaire peut réduire la température de service de cet amalgame, et augmenter la différence entre la température de fusion et la température de service de l'amalgame. De plus, elle peut aussi éviter la circulation du composé fondu, lorsque la lampe reste longtemps allumée. Il importe que le tube de lampe de l'ampoule recouverte pour l'invention puisse assurer la température de service optimale à l'amalgame, que la pression de la vapeur de mercure saturée atteigne l'état optimal, par lequel la consistance du paramètre photoélectrique augmentera considérablement. Ce tube peut augmenter le taux de maintien du flux lumineux de toute la lampe pour prolonger la durée de vie de la lampe, car le tube de la lampe constituée d'une ampoule recouverte pour cette invention est souvent placé vers le bas en service. L'amalgame ne peut pas circuler vers le tube de la lampe après sa fusion. La structure du tube d'évacuation de la lampe limite la circulation de l'amalgame. L'installation est simple, facile à comprendre et les coûts sont bas.
Fei Linkun
Liao Jianbo
Qiu Fuyuan
Dongyang Tospo Lighting Co. Ltd.
Hengdian Tospo Electronics Co. Ltd.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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