摘要:
The present invention aims to provide a light-diffusing heat shrinkable tube which has light diffusibility that enables LED point light sources to give an impression of a surface light source such as a conventional fluorescent lamp. The tube is also capable of suppressing scattering of broken fragments of a transparent pipe that includes the light sources, in the case of an unexpected accident including falling of the pipe. The present invention also aims to provide a linear LED light including the light-diffusing heat shrinkable tube. The light-diffusing heat shrinkable tube including a polyester resin and a light diffusing agent, the polyester resin having an inherent viscosity of 0.8 to 1.4 dl/g, the tube comprising 0.1 to 2.5 wt% of the light diffusing agent, the tube having a thickness of 60 to 300 µm.
摘要:
The invention relates to a lamp, e.g. a UHP-Lamp, comprising a burner (10) with an ionizable filling and an amount of mercury contained therein, having at least one closing means (40, 50) which closes immediately and/or hermetically and/or irreversibly all in- and/or outlets of the lamp to enclose the mercury in the lamp upon detection of an explosion of the burner.
摘要:
Procédé de régulation de la teneur en alumine du bain d'une cuve de production d'aluminium par électrolyse d'alumine dissoute dans un sel fondu à base de cryolithe, consistant à alterner des phases de sous-alimentation en alumine et des phases de suralimentation en alumine par rapport à un régime de consommation théorique moyenne d'alumine de la cuve en fonction des valeurs calculées au terme de chaque cycle i de régulation de durée T, de la résistance moyenne R(i) mesurée aux bornes de la cuve, de la vitesse d'évolution de cette résistance ou pente de résistance P(i), de la vitesse d'évolution de la pente de résistance ou courbure C(i) et de la pente extrapolée PX(i)=P(i) + C(i) x T, qui sont comparées respectivement à des valeurs de référence Po, Co et PXo permettant de moduler, selon un algorithme de régulation approprié, la teneur en alumine du bain dans une plage de concentration très étroite comprise entre 1,5 et 3,5%.
摘要:
The streetlighting luminaire has a housing (1) having a closed light emission window (2) in front of a reflector (4). The reflector (4) has an opening (5) for a lampholder (7) opposite to means (3) of the housing (1) to receive a pole (a). The housing (1) itself has an opening (11) which is closed by a cover (72). The cover (72) bears the lampholder (7), thereby allowing an electric lamp (b) in the lampholder (7) to be exchanged by simply unlocking the cover (72) and pulling the assembly of cover (72), lampholder (7), lamp (b) and a plug (71) to outside the housing (1), at the same time interrupting an electric connection between the plug (71) and a connector (9) mounted in the housing (1). The luminaire allows for a fast lamp exchange.