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Ballast arrangement for gas-discharge lamps and a light unit having a ballast and at least one high-pressure gas-discharge lamp
Ballast arrangement for gas-discharge lamps and a light unit having a ballast and at least one high-pressure gas-discharge lamp
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机译:用于气体放电灯的镇流器布置以及具有镇流器和至少一个高压气体放电灯的照明单元
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摘要
The invention relates to a ballast arrangement for gas-discharge lamps, especially for high-pressure gas-discharge lamps which contain a discharge vessel in a hermetically sealed outer light-permeable glass bulb which is filled with a vacuum or gas filling. The ballast is provided at least with an element which limits the operating current of the gas-discharge lamp or with a similar unit but in some cases may contain for example a structural element, for example a detection and/or circuit element which provides for example the starting pulse, or another structural element which favours the use of the lamp. Its character is that the ballast is constructed as a rotating body which is essentially ring-shaped, cup-shaped or has a different shape and is provided with an inner opening, the inner jacket of the opening enclosing the neck part of the outer glass bulb of the gas-discharge lamp and being matched to the shape of the latter. The ballast may also form an undividable part of the gas-discharge lamp and hence highly favourable compact light sources or electrical lighting units can be constructed, especially with the use of high-pressure gas-discharge lamps which can replace the generally widespread incandescent lamps with a power of 40 to 100 W to save energy, without having to replace the fitting or the socket. IMAGE
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