Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium
Patent
1997-06-30
1998-12-01
O'Shea, Sandra
Electric lamp and discharge devices
With luminescent solid or liquid material
With gaseous discharge medium
313634, 31331802, H01J 1716, H01J 6130
Patent
active
058443576
ABSTRACT:
A light-bulb-shaped fluorescent lamp accommodates in an outer housing that includes a transparent globe and a case, a bent fluorescent tube that has a pair of electrodes at both ends and contains an amalgam and a rare gas, and an electronic lighting circuit lighting the fluorescent tube. A light-bulb-shaped fluorescent lamp which has high conformity to regular light bulbs and realizes the same brightness as a regular 60 W light bulb while consuming less power than a conventional light-bulb-shaped fluorescent lamp is provided by setting the external diameter of the globe in the range of 55-65 mm, the total length of the globe in the range of 65-80 mm, the internal diameter of the fluorescent tube in the range of 7-11 mm, and the distance between the electrodes in the range of 200-280 mm.
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Communication from the UK Patent Office (25 Sep. 1997) and attached Search Report.
Iida Shiro
Itaya Kenji
Matsumura Takeshi
Nakano Kenji
Day Michael
Matsushita Electronics Corporation
O'shea Sandra
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