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Fluorescent lamp and manufacturing method thereof, and illuminating device 发明授权

2023-10-20 1620 199K 0

专利信息

申请日期 2025-07-11 申请号 JP2008254549
公开(公告)号 JP4421665B2 公开(公告)日 2010-02-24
公开国别 JP 申请人省市代码 全国
申请人 Panasonic Corporation5821
简介 A fluorescent lamp according to the present invention includes : a glass tube (1) in which mercury and a rare gas are enclosed; a protective film (3) that is attached so as to cover an inner face of the glass tube (1); and a phosphor layer (4) that is laminated on the protective film (3). The protective film (3) has a thickness of 0.5 µm to 3 ¼m. Further, the protective film 3 is formed of aluminium oxide particles and has a volume ratio of 0.1 to 0.32.


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