Low pressure mercury discharge lamp having a mercury holder with reduced lead oxide

A method of manufacturing a low-pressure mercury vapor discharge lamp starting from a discharge vessel (10) wherein a closed holder (22) is placed which is provided with a quantity of one or more substances to be introduced in the discharge vessel (10). Subsequently, a desired gas atmosphere is brou...

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Bibliographic Details
Main Authors DE BOT FRANK GERARDUS CORNELIS, VAN DONGEN JOHANNES A. G, TRAKSEL FRANS J
Format Patent
LanguageEnglish
Published 16.10.2001
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Summary:A method of manufacturing a low-pressure mercury vapor discharge lamp starting from a discharge vessel (10) wherein a closed holder (22) is placed which is provided with a quantity of one or more substances to be introduced in the discharge vessel (10). Subsequently, a desired gas atmosphere is brought about in the discharge vessel (10) and the discharge vessel is closed. Finally, the holder (22) is opened. According to the invention, the holder (22) is made from a leadoxide containing glass, which leadoxide is partly reduced and in which the amount of reduction is a measure of the mercury content of the holder (22). Due to the reduction process holders (22) with different mercury contents have a different color.
Bibliography:Application Number: US19990263922