发明名称 |
FLUORESCENT LAMP AND LUMINAIRE |
摘要 |
<p>There is provided a multi-ringed bulb including a plurality of ring bulbs in which a plurality of straight tube portions having an outside diameter of from 12 to 20 mm are connected to each other through bent portions on a same plane. Electrodes are provided hermetically at respective ends of outermost and innermost bulbs of the plurality of ring bulbs. A connection portion connects other adjacent ends of the outermost and innermost bulbs to each other so that the outermost and innermost bulbs communicate with each other, to form a single discharge path. A phosphor layer is formed on inner surfaces of at least the straight tube portions 5a of the inner and outer bulbs. The multi-ringed structure bulb is filled with discharge medium. The above-mentioned structure permits to provide a fluorescent lamp and a lighting apparatus, which have a small strain in the inner and outer bulbs, a high strength and an excellent luminous efficiency.</p> |
申请公布号 |
EP1580796(A1) |
申请公布日期 |
2005.09.28 |
申请号 |
EP20030774160 |
申请日期 |
2003.11.21 |
申请人 |
TOSHIBA LIGHTING & TECHNOLOGY CORPORATION |
发明人 |
YAMADA, ICHIRO;TODA, NAOYUKI;NISHIMURA, KIYOSHI;SHIBAHARA, YUSUKE;OOTANI, KIYOSHI;YOSHIDA, MASAHIKO |
分类号 |
H01J61/30;H01J61/32;H01J61/72;(IPC1-7):H01J61/32 |
主分类号 |
H01J61/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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