Ultraviolet and visible filter for ceramic arc tube body
    1.
    发明授权
    Ultraviolet and visible filter for ceramic arc tube body 失效
    陶瓷电弧管体的紫外和可见滤光片

    公开(公告)号:US06294871B1

    公开(公告)日:2001-09-25

    申请号:US09235647

    申请日:1999-01-22

    IPC分类号: H01J1716

    CPC分类号: H01J61/302 H01J61/827

    摘要: A ceramic arc tube for a metal halide discharge lamp is soaked in a dopant solution. The dopant solution includes a salt of a UV-absorbing additive, such as europium, cerium, or titanium. The salt is converted to the oxide form of the UV-absorbing additive during sintering of the arc tube. Lamps fabricated using the doped arc tubes filter UV from light emitted from the discharge without appreciably absorbing light in the visible range. The UV retained in the lamp causes the lamp to run at a hotter temperature, improving light output.

    摘要翻译: 将用于金属卤化物放电灯的陶瓷电弧管浸入掺杂剂溶液中。 掺杂剂溶液包括紫外线吸收添加剂的盐,例如铕,铈或钛。 在电弧管烧结过程中,盐被转化为紫外线吸收添加剂的氧化物形式。 使用掺杂的电弧管制造的灯对从放电射出的光过滤UV,而不会明显地吸收可见光范围内的光。 保持在灯中的紫外线使得灯在较高的温度下运行,从而改善光输出。