| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of a lamp bulb and a tube bulb capable of curtailing the volume of use of glass materials for flare or a stem, in a fabricating process of a sealing part in a manufacturing process of the lamp bulb. SOLUTION: In the manufacturing process of a bulb main body of the lamp bulb, an pressure crushing system is adopted for a sealing part form in the bulb main body. In the fabricating process of the sealing part in the bulb main body in the manufacturing process of the lamp bulb, glass parts are produced, and then connection and sealing with the glass bulb is carried out. In a manufacturing process of a lamp bulb corresponding to recent environment problems in which weight reduction of wastes is a requisite, the structure of the lamp bulb by which a reduction of a glass material can be aimed at at the fabricating process of the sealing part, and the bulbs can be obtained. COPYRIGHT: (C)2005,JPO&NCIPI
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