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115. 发明专利

JPS5444373A INCANDESCENT LAMP 失效
公开(公告)号：JPS5444373A
公开(公告)日：1979-04-07
申请号：JP10946077
申请日：1977-09-13
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： GOTOU EIZOU
IPC分类号： H01K1/50 , H01K1/54
摘要： PURPOSE:To provide an incandescent lamp, having bulk getters and an inert gas of a particular composition sealed therein, whereby it is enabled to heat the bulk getter to a high temperauture if the lamp or bulb is of a low output, and to make the bulk getters function as performance getters. CONSTITUTION:Tungsten filament 5 is attached to the stem 3 in a tubular bulb 1, and suspension made of powder of Zr, Ta, Ti, Al or the like constituting bulk getters 7 and its binder is applied on lead wires 4a, 4b and anchor portion 6. Further, Ar gas containing about 5 wt % of H2 is sealed in the bulb 1 under the pressure of about 600 Torr. When current is supplied to this bulb 1, H2 molecules located near the tungsten filament 5 are dissociated into atoms since the filament 5 is heated to an extermely high temperature but are again changed into molecules while releasing heat at the portion of lead wires 4a, 4b and anchor portion 6. Thus, coatings of bulk getters 7 near the above portion are heated effectively to a high temperature and impure gases in the bulb 1 are adsorbed thereto so that it is prevented that the bulb be darkened in use.

117. 发明专利

JPS5438685A HALOGEN LAMP 失效
公开(公告)号：JPS5438685A
公开(公告)日：1979-03-23
申请号：JP10418377
申请日：1977-09-01
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： OYAMADA MAKOTO , SAIDA ATSUSHI
IPC分类号： H01K1/50
摘要： PURPOSE:To provide a halogen lamp which generates no stripe blackening at the initial period of lighting, wherein chlorine within a bulb of a halogen lamp having at least chlorine is selected to have a specific concentration and gram atom ratios Cl/H and O/Cl are selected to be in a specific range.

119. 发明专利

JPS5419583A HALOGEN LAMP 失效
公开(公告)号：JPS5419583A
公开(公告)日：1979-02-14
申请号：JP8290477
申请日：1977-07-13
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： YUGE YOUJI
IPC分类号： H01K1/50
摘要： PURPOSE:To provide a halogen lamp, having potassium in addition to halogen elements sealed therein, in which amount of potassium vapor is limited to the extent that halogen cycle may not be affected in operation of the lamp, whereby corrosion at low-temperature portions of filament can be prevented while not affecting the function of protecting the bulb wall from darkening.

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