摘要:
A gas-tight joint for pipe linings and risers inside a bore, consisting of a neck with an outside thread and of a matching collar with an inside thread, with a groove in the vicinity of the thread on the collar and/or of the thread on the neck to accommodate a deformable gasket that, when the joint is screwed tight, is demarcated and deformed by the base of the groove in the neck and/or in the collar and by the contour of the thread on the other component. The cross-sectional area demarcated by the base of the groove in the neck and/or collar and by the contour of the thread on the other component once the two components have been screwed together remains constant along the groove and is equal to or larger than the cross-sectional area of the deformable gasket before the components are screwed together.
摘要:
A low-pressure gas discharge lamp is described that has, in a gas-discharge vessel, one or more inert gases as a buffer gas and means for producing, and maintaining a low-pressure gas discharge and that contains a gallium halide or a mixture of a plurality of gallium halides, to which indium and/or thallium may also preferably be added. A low-pressure gas discharge lamp of this kind produces sufficient UV radiation for it to be used in tanning devices.
摘要:
A low-pressure gas discharge lamp is described that comprises, in a gas discharge vessel, one or more inert gases as a buffer gas, an indium halide and means for producing and maintaining a low-pressure gas discharge, in which lamp the indium halide is present as a monohalide and present in addition is a means that binds oxygen and water. The said means should bind oxygen and the oxygen in water more strongly than indium does. This object is satisfactorily achieved by indium, gallium, germanium, boron, molybdenum and/or tungsten.
摘要:
A paint holder and delivery device comprising a container. A disposable insert fits within the container to facilitate the application of paint with a paintbrush.
摘要:
The invention relates to a lamp system having—a gas-discharge lamp with a color point in the green-blue,—an LED with a color point in the yellow-red, and—an optical component for additive mixing of the light from the gas-discharge lamp and the LED, and to a corresponding method of illumination. A blue and green emitting fluorescent lamp is particularly suitable as gas-discharge lamp, and a red-yellow-emitting AlGaInP LED or a red-emitting AlGaAs LED as LED. Through additive mixing of the light from these high-efficiency light sources, the invention provides a highly efficient light source affording good color rendering, which contains all three primary colors and is particularly suited to the highly efficient generation of white light.
摘要:
A low-pressure gas discharge lamp equipped with a gas discharge vessel containing an inert gas filling as the buffer gas, and with electrodes and with means for generating and maintaining a low-pressure gas discharge, is described, wherein the lamp contains at least one tin halide.
摘要:
A paint holder and delivery device comprising a container. A disposable insert fits within the container to facilitate the application of paint with a paintbrush.
摘要:
The invention relates to a lamp system (21) with a first light source (23) which radiates light of a first chromaticity coordinate and with a second light source which radiates light of a second chromaticity coordinate, and with an optical component (22) for additively mixing the light of the two light sources (23, 24 to 28). According to the invention, the optical component (22) comprises an optical waveguide (22) with two different kinds of scattering centers (29, 30). The light can be mixed thereby as
摘要:
A description is given of a low-pressure gas discharge lamp equipped with a gas discharge vessel containing, as a buffer gas, an inert gas filling and an indium halogenide, thallium halogenide, gallium halogenide and/or copper halogenide, and with electrodes and means for generating and maintaining a low-pressure gas discharge, and which comprises one or more chalcogenides of alkaline earth metals as electron emitter material.
摘要:
A high-pressure metal halide discharge lamp which comprises, as filling, only zinc, a halogen and a noble gas. In order to improve the color rendering index, a calcium halide may be added to the lamp filling. The coupling-in of energy preferably takes place without electrodes in the radio-frequency range or in the microwave range, but may also be carried out by means of metal electrodes.