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LOW-VOLTAGE DISCHARGE LAMP AND BACKLIGHT DEVICE USING SAME 发明授权

2023-03-21 2110 251K 0

专利信息

申请日期 2025-07-09 申请号 KR1020047014090
公开(公告)号 KR100624072B1 公开(公告)日 2006-09-07
公开国别 KR 申请人省市代码 全国
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
简介 A low-pressure discharge lamp (1) is provided that includes a glass tube (2) having an inner diameter in a range of 1 to 5 mm and a pair of electrodes (3) disposed at end portions in the glass tube (2). The pair of electrodes (3) contain at least one transition metal selected from transition metals of Groups IV to VI. Mercury and a rare gas containing argon and neon are sealed in an inner portion of the glass tube (2). A relationship between a cathode glow discharge density J and a composition index α of the sealed rare gas of the low-pressure discharge lamp (1) satisfies the following expression α≰J=I/(S·P2)≰1.5α (where S represents an effective discharge surface area (mm2) of an electrode, I represents a RMS lamp current (mA), P represents a pressure (kPa) of a sealed rare gas, and α represents a composition index of a sealed rare gas that is a constant expressed by α=(90.5A+3.4N)×10−3 when a total of a composition ratio A of argon and a composition ratio N of neon is expressed by A+N=1).


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