摘要:
There is provided a discharge lamp of an embodiment includes a burner having a light emitting part, and a disk-shaped flange which is capable of holding the burner so that the light emitting part is positioned at a front end side of the flange. The flange includes a resin part formed at an edge of the flange, and a metal part formed to be embedded in the resin part.
摘要:
A discharge lamp includes an airtight tube including a light-emitting unit in which a space is formed and seal portions formed at least on one end of the light-emitting unit, a discharge medium including a metal halide and a rare gas sealed in the light-emitting unit, a metal foil sealed into the seal portion, and a pair of electrodes one ends of which are overlapped and connected to the metal foil and the other ends of which are provided such that they are led into the space of the light-emitting unit and arranged in opposition to each other. A concavity is formed on at least a portion of the back surface side of the metal foil on which the electrode is overlapped, and a compression distortion is formed on the seal portion in the vicinity of the concavity.
摘要:
There are provided a mercury-free metal halide lamp which is improved in light flux rising immediately after starting, more practical and suitable for a headlight, and a metal halide lamp lighting device and a headlight using this. The metal halide lamp according to the present invention comprises: a translucent air-tight container having an inner volume which is not grater than 0.1 cc, including an enclosure portion forming an inner space having a flat surface on a bottom surface, and having a ratio D/L satisfying the following expression: 0.25 ≦ D/L ≦ 0.43 where D is a distance between the bottom surface and a top surface of the inner space at a central portion in a tube-axis direction, and L is a length of the enclosure portion; a pair of electrodes sealed facing each other with an inter-electrode distance which is not greater than 5 mm; and a discharging medium containing a plurality of metal halogen compounds selected from a group of Sc, Na, In, Zn and a rare-earth metal and a rare gas but intrinsically not containing mercury (Hg), wherein a lamp power per unit inner surface area of the air-tight container is not smaller than 60 (W/cm2).
摘要翻译:提供了一种无汞金属卤化物灯,其在启动后立即上升的光通量得到改善,更实用且适用于大灯,以及金属卤化物灯照明装置和使用其的前照灯。 根据本发明的金属卤化物灯包括:具有内部体积不超过0.1cc的透光性气密容器,包括形成在底面上具有平坦表面的内部空间的外壳部分,并且具有比例 D / L满足以下表达式:0.25 <= D / L <= 0.43其中D是在管轴方向的中心部分的内部空间的底表面和顶表面之间的距离,L是长度 的外壳部分; 一对彼此相对密封的电极,电极间距离不大于5mm; 以及包含选自Sc,Na,In,Zn和稀土金属和稀有气体但本质上不含汞(Hg)的多种金属卤素化合物的放电介质,其中每单位内表面的灯功率 气密容器的面积不小于60(W / cm2)。
摘要:
There is provided a discharge lamp of an embodiment includes a burner having a light emitting part, and a disk-shaped flange which is capable of holding the burner so that the light emitting part is positioned at a front end side of the flange. The flange includes a resin part formed at an edge of the flange, and a metal part formed to be embedded in the resin part.
摘要:
There are provided a mercury-free metal halide lamp which suppresses occurrence of flickering of light emission, and is improved in light flux rising immediately after starting, and more practical and suitable for a headlight, and a metal halide lamp lighting device and a headlight using this.A metal halide lamp according to the present invention comprises: a translucent air-tight container having an inner volume which is not greater than 0.1 cc; a pair of electrodes sealed facing each other with an inter-electrode distance which is not greater than 5 mm in the translucent air-tight container; and a discharging medium containing a plurality of metal halogen compounds selected from a group of scandium (Sc), sodium (Na), indium (In), zinc (Zn) and a rare-earth metal and a rare gas but intrinsically not containing mercury (Hg), wherein a tube wall load is not smaller than 60 W/cm2, and a ratio Vo/Vl satisfies an expression 0.45≦Vo/Vl≦0.72, where Vo is an average lamp voltage for 0.3 to 2 seconds after starting, and Vl is an average lamp voltage in a stable state.
摘要翻译:提供了一种不含汞的金属卤化物灯,其抑制发光的发生,并且在启动后立即上升的光通量得到改善,并且更实用并且适合于大灯,以及金属卤化物灯照明装置和使用 这个。 根据本发明的金属卤化物灯包括:内容积不大于0.1cc的半透明气密容器; 在半透明的气密性容器中电极间距离不大于5mm的一对电极彼此密封; 以及包含选自钪(Sc),钠(Na),铟(In),锌(Zn)和稀土金属和稀有气体但本质上不含汞的多种金属卤素化合物的放电介质 (Hg),其中管壁负载不小于60W / cm 2,并且比率Vo / V1满足表达式0.45 <= Vo / V1≤0.72,其中Vo是平均值 灯电压开始后0.3〜2秒,V1是稳定状态下的平均灯电压。
摘要:
A metal halide lamp includes a translucent air tight vessel having a light emitting tube portion with an internal discharge space, and sealing portions formed on both sides. A discharge medium in the discharge space contains at least metal halide and rare gas. A pair of electrodes, one ends of which are sealed at sealing portion and the other end of which are arranged in the discharge space facing each other. The discharge space has a nearly circular shape in a cross section perpendicular to the tube axis and has a structure in which the discharge medium is accumulated between the electrodes. The light emitting tube portion has a wall thickness of a lower portion thinner than that of an upper portion. The metal halide lamp has a high luminous efficiency, a quick rise of light flux and an easy manufacturing ability.
摘要:
A discharge lamp includes an airtight tube including a light-emitting unit in which a space is formed and seal portions formed at least on one end of the light-emitting unit, a discharge medium including a metal halide and a rare gas sealed in the light-emitting unit, a metal foil sealed into the seal portion, and a pair of electrodes one ends of which are overlapped and connected to the metal foil and the other ends of which are provided such that they are led into the space of the light-emitting unit and arranged in opposition to each other. A concavity is formed on at least a portion of the back surface side of the metal foil on which the electrode is overlapped, and a compression distortion is formed on the seal portion in the vicinity of the concavity.
摘要:
A metal halide lamp includes a translucent air tight vessel 1 having a light emitting tube portion 11, in which a discharge space 13 is formed, and sealing portions 121, 122 formed on both sides of the light emitting tube portion 11. A discharge medium is enclosed in the discharge space 13 containing at least metal halide and rare gas. A pair of electrodes 31, 32, one ends of which are sealed at sealing portion 121, 122 and the other end of which are arranged in the discharge space 13 facing to each other. The discharge space 13 has a nearly circular shape in a cross section perpendicular to the tube axis and has a structure in which the discharge medium 14 is accumulated between the pair of electrodes 31, 32. The light emitting tube portion 11 is so formed as the wall thickness of a lower portion is thinner than that of an upper portion. The metal halide lamp is obtained having a high luminous efficiency, a quick rise of light flux and an easy manufacturing ability without less bad influence on lamp characteristics.