Abstract:
A discharge light-emitting device includes a chamber that encapsulates a discharge gas and has a light permeable portion; and at least a pair of electrodes that are arranged in the chamber and are made of a wide-gap semiconductor, wherein the pair of electrodes are connected to each other and at least a portion where the electrodes are connected to each other is formed into a narrow portion.
Abstract:
An electric lamp having a base at one end, a lamp bulb sealed in a vacuum-tight manner, the lamp bulb being surrounded by an envelope part, a base having electrical connections bearing on one side the outer bulb and on the other side the envelope part, having the following features: a) the base has a base insulator which has a central opening in which the outer bulb is accommodated without cement; b) the base insulator has a circular, radially projecting segment having an upper and lower plateau which is associated with the base; c) on the base side the envelope part has a circular opening having a radially projecting edge which has a lower and an upper contact surface in relation to the base, the lower contact surface matching the upper plateau; and d) the envelope part is fixed to the base via a cement-free, mechanical retaining mechanism.
Abstract:
The present invention disclosed a high-intensity discharge lamp without or with low mercury, including the metallic halide discharge lamp, the high pressure mercury lamp and the mercury-xenon lamp and so on. When the high-intensity discharge lamp without or with low mercury according to the invention is used, the optimum amount of Se or HgSe is determined based on the type and the power of the lamps to substitute for the mercury partially or completely. Thus a proper light spectrum can be reached with a high color rendering index (for example 95). The mercury packed in the high-intensity discharge lamp without or with low mercury according to the invention can be substituted completely or reduced greatly. The lamp meets the requirement of the environmental protection and is a potential new-style light source.
Abstract:
A mercury-free high-pressure discharge lamp includes a light-transmissive airtight envelope enclosing therein a discharge space, and a pair of electrodes sealed inside the light-transmissive airtight envelope and facing the discharge space, and the primary halide includes at least thulium bromide having an innumerable emission spectrum primarily around the peak of a luminosity curve and alkali metal halide, and the accessory halide contains one or more metal halides mostly selected from a group of Magnesium (Mg), Iron (Fe), Cobalt (Co), Chromium (Cr), Zinc (Zn), Nickel (Ni), Manganese (Mn), Aluminum (Al), Antimony (Sb), Bismuth (Bi), Beryllium (Be), Rhenium (Re), Gallium (Ga), Titanium (Ti), Zirconium (Zr), and Hafnium (Hf) which primarily contribute to fix lamp voltage.
Abstract:
The invention discloses a current bushing system for a lamp, having molybdenum foils, which are embedded in a gas-tight manner in at least one end section of the lamp and on which, in each case at two opposite narrow sides, an outer power supply line and an electrode or an outer power supply line and an inner power supply line are arranged. According to the invention, the power supply lines and/or electrodes have, at least in sections, a coating which is designed such that the fusion behavior of the power supply lines and/or electrodes is impaired in the coating region.
Abstract:
A metal halide lamp is disclosed comprising an elongated discharge vessel, preferably made of a ceramic material, surrounded by an outer envelope and having a wall which encloses a discharge space containing an inert gas, such as xenon, and an ionizable filling, wherein at both ends in said discharge space an electrode is arranged between which a discharge arc can be maintained along a discharge path, wherein one end of the discharge vessel is mounted in a mounting base, said lamp comprising a band-shaped light-shielding strip extending laterally of the discharge path, and a lead-back conductor supplying current from the mounting base to the electrode at the other end of the discharge vessel, wherein, seen in cross section, the lead-back conductor is positioned within the sector defined by the two lines through the center of the discharge vessel and the edges of said strip. Also a metalhalide lamp is disclosed wherein the light-shielding strip is a conductive strip, and the antenna or the lead-back conductor is integrated with said strip. Furthermore a metal-halide lamp is disclosed wherein the lead-back wire is provided inside the wall of the outer envelope.
Abstract:
A lamp comprising an arc envelope and a niobium end structure coupled to the arc envelope, and wherein the end structure is shielded from a dosing material disposed within the arc envelope.
Abstract:
The inventive luminous vessel has a strong bonding and improved adhesion of a current through conductor 2 provided in a luminous container 9 to a sealing member 11C or the like. A luminous vessel has a luminous container 9, a solid current through conductor 2 made of a metal or a cermet and a sintered body 11C of a molded body containing at least metal powder fixed to the outside of the current through conductor 2.
Abstract:
A discharge light emitting device includes a container formed from insulating diamond and accommodating a discharge space therein, a material for discharge sealed in the discharge vessel, and an electrode pair formed from a conductive diamond and provided to apply voltage to the material for discharge.
Abstract:
The invention relates to a high-pressure discharge lamp with an outer envelope (1) in which a discharge vessel (11) is arranged around a longitudinal axis (22). The discharge vessel encloses, in a gastight manner, a discharge space (13) provided with an ionizable filling. The discharge vessel has a first (2) and a second (3) mutually opposed neck-shaped portion through which a first (4) and a second (5) current-supply conductor, respectively, extend to a pair of electrodes (6, 7) arranged in the discharge space (13). The outer envelope (1) has a bulb-shaped portion (2) adjacent the discharge space with a wall thickness d1. The remainder of the outer envelope has a wall thickness d2. The ratio of d1and d2 is in the range: Formula (I). Preferably, Formula (II), the bulb-shaped portion is formed in a mold. A simplified and compact high-pressure discharge lamp is provided by the invention.
Abstract translation:本发明涉及一种具有外封套(1)的高压放电灯,其中放电容器(11)围绕纵向轴线(22)布置。 放电容器以气密的方式包围设置有可电离填充物的放电空间(13)。 放电容器具有第一(2)和第二(3)相互相对的颈状部分,第一(4)和第二(5)电流供应导体分别延伸到一对电极(6, 7)布置在放电空间(13)中。 外封套(1)具有与放电空间相邻的壁形部分(2),壁厚d 1 <1。 外封套的其余部分具有壁厚d 2 N 2。 d 1和d 2的比例在下式的范围内:式(I)。 优选地,式(II)中,灯泡状部分形成在模具中。 本发明提供一种简单紧凑的高压放电灯。