Patent ID: 6979949
Filing Date: 2005-12-27
Classification: H01J

Abstract:
1. A fluorescent luminous tube, comprising: an envelope including a first substrate and a second substrate that confront each other, and side members; an anode disposed inside said envelope, said anode on which a fluorescent substance is coated; a getter mounted inside said envelope; and a getter mirror film formed on an inner surface of said second substrate of said envelope; said getter mirror film being formed by illuminating a laser beam onto said getter from the outside of said envelope through said second substrate and moving the illumination spot of said laser beam along a scanning line in a predetermined shape, whereby a surface of said getter is evaporated along said scanning line to form said getter mirror film corresponding to the shape of said scanning line on said inner surface of said second substrate of said envelope through which said laser beam passes; said getter mirror film having a burnt region having substantially the same size and shape as those of said scanning line.