Abstract:
The invention provides a high intensity discharge lamp comprising a ceramic discharge vessel having sealed first and second end plugs and an external electrical antenna, which is used as "active" antenna for facilitating ignition of the high intensity discharge lamp. The discharge vessel encloses a discharge volume and comprises two electrodes and contains a filling.
Abstract:
A discharge lamp includes a body portion having inner and outer body walls and first and second ends. The inner body wall defines at least part of a cavity located between the first and second ends. First and second end parts have inner end-part and outer end-part walls and a hole extending between the inner end-part wall and the outer end-part wall. The first and second end parts are each located, at least in part, within the cavity and separate from each other so as to maintain a gas under pressure. First and second electrodes are included in the cavity. An antenna has first and second antenna ends and is formed on the outer body wall of the body portion and the outer end-part wall of at least one of the first and second end parts. The antenna is not directly connected to the first and second electrodes.
Abstract:
A discharge lamp includes a body portion having inner and outer body walls and first and second ends. The inner body wall defines at least part of a cavity located between the first and second ends. First and second end parts have inner end-part and outer end-part walls and a hole extending between the inner end-part wall and the outer end-part wall. The first and second end parts are each located, at least in part, within the cavity and separate from each other so as to maintain a gas under pressure. First and second electrodes are included in the cavity. An antenna has first and second antenna ends and is formed on the outer body wall of the body portion and the outer end-part wall of at least one of the first and second end parts. The antenna is not directly connected to the first and second electrodes.
Abstract:
The invention relates to a metal halide lamp (1) comprising a ceramic discharge vessel, having an inner diameter, enclosing a discharge space which accommodate two electrodes arranged at an electrode distance, and which contains a noble gas and a salt filling, wherein (1) the salt filling comprises an alkali halide, a rare earth halide, and optionally thallium halide; (2) the discharge vessel has an aspect ratio, defined as the electrode distance divided by the inner diameter, of at maximum 4; and (3) the metal halide lamp has a wall load at full power, defined as the lamp power divided by the inner surface area of the discharge space, of at least 25 W/cm 2 . Especially, the discharge space contains 0.015-1.5 μg/mm 3 alkali halide.
Abstract translation:本发明涉及一种金属卤化物灯(1),其包括具有内径的陶瓷放电容器,所述陶瓷放电容器包围容纳布置在电极距离处的两个电极并且包含惰性气体和盐填充物的放电空间,其中(1 )盐填充物包括碱金属卤化物,稀土卤化物和任选的卤化铊; (2)放电容器的长径比定义为电极距离除以内径最大为4; 和(3)金属卤化物灯具有至少25W / cm 2的全功率的壁负荷,被定义为灯功率除以放电空间的内表面积。 特别地,放电空间含有0.015-1.5微克/毫米3卤化碱。
Abstract:
A lamp (1) includes an envelope (2) of a vitreous composition, having a pinched part (6) at least one end to form a seal isolating an interior of the envelope (10) from the environment of the envelope (2), and an arrangement for conducting electrical current to the interior of the envelope (2), having a section (7a, 8a) embedded in one of the pinched parts of the envelope (2) and a section (7b, 8b) external to the envelope (2). At least part of embedded section (7a, 8a) of the arrangement for conducting electrical current is at least partly surrounded by a composition including at least one of phosphorus in a non-volatile form and an acid thereof.
Abstract:
The invention relates to a metal halide lamp (1) comprising a ceramic discharge vessel, having an inner diameter, enclosing a discharge space which accommodate two electrodes arranged at an electrode distance, and which contains a noble gas and a salt filling, wherein (1) the salt filling comprises an alkali halide, a rare earth halide, and optionally thallium halide; (2) the discharge vessel has an aspect ratio, defined as the electrode distance divided by the inner diameter, of at maximum 4; and (3) the metal halide lamp has a wall load at full power, defined as the lamp power divided by the inner surface area of the discharge space, of at least 25 W/cm2. Especially, the discharge space contains 0.015-1.5 µg/mm3 alkali halide.
Abstract translation:本发明涉及一种金属卤化物灯(1),其包括具有内径的陶瓷放电容器,所述陶瓷放电容器包围容纳布置在电极距离处的两个电极并且包含惰性气体和盐填充物的放电空间,其中(1 )盐填充物包括碱金属卤化物,稀土卤化物和任选的卤化铊; (2)放电容器的长径比定义为电极距离除以内径最大为4; 和(3)金属卤化物灯具有至少25W / cm 2的全功率的壁负荷,被定义为灯功率除以放电空间的内表面积。 特别地,放电空间含有0.015-1.5微克/毫米3卤化碱。
Abstract:
The invention provides a high intensity discharge lamp comprising a ceramic discharge vessel having sealed first and second end plugs and an external electrical antenna, which is used as "active" antenna for facilitating ignition of the high intensity discharge lamp. The discharge vessel encloses a discharge volume and comprises two electrodes and contains a filling.