摘要:
The compact low-pressure discharge lamp (1) has a wound tubular discharge vessel (2) with at least four straight tubes (6, 7) which are in a polygonal arrangement and, close to or at the ends of the straight tubes (6, 7), are connected by transverse connections (8, 10, 11) to form a single continuous discharge path which is closed off in a gastight manner. A coil spring (14) made from metal, which runs parallel to the tubes (6, 7) is arranged in the center of the cylindrical cavity (13) formed by the straight tubes (6, 7) of the discharge vessel (2). The coil spring (14) reduces the firing voltage required.
摘要:
Single-die or multi-die packaged modules that incorporate three-dimensional integration of active devices with discrete passive devices to create a package structure that allows active devices (such as, silicon or gallium-arsenide devices) to share the same footprint area as an array of passive surface mount components. In one example, a module includes at least one active device stacked on top of an array of passive surface mount components on a substrate. A conductive or non-conductive adhesive can be used to adhere the active device to the array of passive devices.
摘要:
A method for the recombinant production of a polypeptide in a eukaryotic host cell modified in the citrate cycle is described, wherein the method comprises cultivating the eukaryotic host cell in a suitable medium under conditions which allow the expression of the polypeptide, wherein the content of dissolved CO2 (pCO2) in the medium is maintained at a constant value in the range of 10% to 20%.
摘要:
According to an exemplary embodiment, an overmolded semiconductor package includes at least one semiconductor die situated over a package substrate. The overmolded semiconductor package further includes a mold compound overlying the at least one semiconductor die and the package substrate. The overmolded semiconductor package further includes a conductive layer situated on an outer surface of the mold compound and having an opening. The overmolded semiconductor package further includes an antenna feed line situated in the mold compound and having a portion exposed in the opening in the conductive layer, thereby providing an antenna input on the outer surface of the mold compound.
摘要:
The invention relates to a mercury source for a low-pressure discharge lamp comprising an amalgam body which is arranged on a front surface of a wire or enclosed in a perforated structure. The amalgam body or the perforated structure is provided with a protective coating with a getter effect. The invention enables a simple production process to be implemented with low costs in terms of materials.
摘要:
A method for operating a discharge lamp (1), wherein, during operation of the discharge lamp (1), an electrical heating current (IH) and an electrical discharge current (Id) are supplied at least temporarily to an electrode (6, 7). During undimmed operation of the discharge lamp (1), the value (SoS1, SoS2) of the sum of the squares of the electrical currents (I1, I2) supplied via power supply lines (8, 9, 10, 11) connected to an electrode (6, 7) is set in an interval of between 1.2 times the square of a test current (IT) predetermined for the discharge lamp (1) and 2 times the square of this test current (IT)
摘要:
A lamp may include at least one housing; a heat source connected thereto; and a base for connection to a lampholder, wherein the base has at least one heat dissipation surface, and wherein at least one heat source is thermally conductively connected to at least one heat dissipation surface.
摘要:
The invention relates to a discharge lamp comprising a discharge vessel (2) and an electrode frame (3) which is provided with a lamp coil (33) and at least some sections of which extend into the discharge vessel (2). Electrode holders (31, 32) are connected to a glass bead (34), at least some areas of which are sealed into an end region (21) of the discharge vessel (2).
摘要:
Single-die or multi-die packaged modules that incorporate three-dimensional integration of active devices with discrete passive devices to create a package structure that allows active devices (such as, silicon or gallium-arsenide devices) to share the same footprint area as an array of passive surface mount components. In one example, a module includes at least one active device stacked on top of an array of passive surface mount components on a substrate. A conductive or non-conductive adhesive can be used to adhere the active device to the array of passive devices.
摘要:
The invention relates to an electric incandescent lamp having a lamp vessel (12), at least one filament (14) which is arranged in the lamp vessel (12) and comprises at least a filament element (15) for generating radiation in the infrared region and in the visible region, and at least one filter (35), which is applied at least partially to the light vessel (12), reflects radiation in the infrared region and is transparent in the visible region, at least for selected wavelengths of radiation, at least one filament element (15) being of flat, in particular strip-shaped construction. It also relates to a method for producing such an electric incandescent lamp. FIG. 5.