摘要:
A ceramic arc tube for high intensity discharge (HID) lighting applications is provided wherein the arc tube contains a high buffer gas pressure. A method and apparatus for making the arc tube are also provided wherein RF induction heating is used to melt a frit material to form a hermetic seal.
摘要:
An apparatus for making a ceramic arc tube for high intensity discharge (HID) lighting applications is provided wherein the arc tube contains a high buffer gas pressure and RF induction heating is used to melt a frit material to form a hermetic seal.
摘要:
A ceramic arc tube for high intensity discharge (HID) lighting applications is provided wherein the arc tube contains a high buffer gas pressure. A method and apparatus for making the arc tube are also provided wherein RF induction heating is used to melt a frit material to form a hermetic seal.
摘要:
A high-pressure discharge lamp may include a ceramic discharge vessel and a longitudinal axis, with electrodes respectively being led out from the discharge vessel by means of a feed-through via capillaries, wherein a tubular cermet part, which consists of individual layers of different composition layered axially in succession, is fitted on the capillary, each layer containing Mo and Al2O3, the proportion of Mo in the first layer facing toward the capillary being from 3 to 15 vol. % and in the last layer being from 85 to 97 vol. %, and a molybdenum cover cap, the cover cap being welded to the feed-through and the cover cap being connected to the cermet part by means of solder containing metal, and the connection between the capillary and the cermet part being established by means of high-melting glass solder or sinter-active Al2O3 powder.
摘要翻译:高压放电灯可以包括陶瓷放电容器和纵向轴线,电极分别通过毛细管通过馈通从放电容器引出,其中管状金属陶瓷部件由不同的不同层 组成分层的组合物被装配在毛细管上,每层含有Mo和Al 2 O 3,第一层中Mo朝向毛细管的比例为3至15体积%。 %,最后一层为85〜97体积%。 %和钼盖盖,盖帽焊接到馈通,并且盖帽通过含金属的焊料连接到金属陶瓷部分,并且毛细管和金属陶瓷部件之间的连接是借助于 高熔点玻璃焊料或烧结活性Al2O3粉末。
摘要:
An optoelectronic semiconductor component includes a light source, a housing and electrical connections, wherein the light source has a chip which emits primary radiation in the UV or blue region with a peak wavelength in particular in the region of 300 to 490 nm, wherein the primary radiation is partially or completely converted into radiation of a different wavelength by a previously applied conversion element, characterized in that the conversion element has a translucent or transparent substrate, which is manufactured from ceramic or glass ceramic, wherein a glass matrix is applied to the substrate, with a phosphor being embedded in said glass matrix.
摘要:
A method for producing a metal-halide discharge lamp with a ceramic dische vessel is distinguished in that first both ends (6a, 6b) are equipped with electrode systems and sealed off, but a filling bore (15) remains in the vicinity of the pump end (6a) and is not closed until after the filling.
摘要:
A high-pressure discharge lamp may include a ceramic discharge vessel and a longitudinal axis, with electrodes respectively being led out from the discharge vessel by means of a feed-through via capillaries, wherein a tubular cermet part, which consists of individual layers of different composition layered axially in succession, is fitted on the capillary, each layer containing Mo and Al2O3, the proportion of Mo in the first layer facing toward the capillary being from 3 to 15 vol. % and in the last layer being from 85 to 97 vol. %, and a molybdenum cover cap, the cover cap being welded to the feed-through and the cover cap being connected to the cermet part by means of solder containing metal, and the connection between the capillary and the cermet part being established by means of high-melting glass solder or sinter-active Al2O3 powder.
摘要翻译:高压放电灯可以包括陶瓷放电容器和纵向轴线,电极分别通过毛细管通过馈通从放电容器引出,其中管状金属陶瓷部件由不同的不同层 组成分层的组合物被装配在毛细管上,每层含有Mo和Al 2 O 3,第一层中Mo朝向毛细管的比例为3至15体积%。 %,最后一层为85〜97体积%。 %和钼盖盖,盖帽焊接到馈通,并且盖帽通过含金属的焊料连接到金属陶瓷部分,并且毛细管和金属陶瓷部件之间的连接是借助于 高熔点玻璃焊料或烧结活性Al2O3粉末。
摘要:
A high pressure discharge lamp may include a ceramic discharge vessel and a longitudinal axis, wherein at least one electrode is led out of the discharge vessel by means of a metal-containing feed-through, wherein the feed-through is connected to one end of the discharge vessel by way of a ceramic-containing adjustment part, wherein the adjustment part is tubular and consists of individual layers with different compositions, at least two materials A and B forming a plurality of layers of the adjustment part, these materials being chosen such that their coefficient of thermal expansion is between that of the feed-through and that of the end of the discharge vessel or at most is just outside, the layer thickness of each layer being so low that no shearing forces can occur, and the layer thickness of each layer of the same material being different.
摘要:
To make a small high-pressure discharge lamp, for example of 50 W rating or less, and suitable, for example, for automotive applications, a quartz glass tube is heated, formed with constrictions, and a gas passed therebetween to expand the portion of the tube between the constrictions into olive shape to form the discharge vessel (6). A preformed first electrode system is introduced through one of the constrictions. The electrode system preferably has a zig-zag lead (9) slightly larger than the internal diameter of the tube to provide for self-centering. The tube is then isolated from atmosphere, for example by being placed in a glove box or coupled to a pumping head (15), for introduction therein of a fill substance, for example in pellet form, of a metal halide and, if desired, mercury; and a fill gas, such as argon or, preferably, xenon, preferably after cleaning and flushing the tube. A second electrode system is then introduced, for example within the glove box, and the end of the tube sealed off, with the fill substance therein. A second pinch seal (18) can then be formed externally of the glove box, or while the tube is still connected to a pumping head, and excess end pieces of the tube and the electrodes are cut off.
摘要:
The invention relates to a phosphor wheel comprising a carrier (16) and a plurality of pre-manufactured, individual, jointed segments (20) that are mounted on the carrier (16). At least a few of the segments (20) comprise a luminescent substance.