| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a bent type fluorescent lamp capable of emitting light without unevenness and with extremely small luminance differences in the axis center direction of a glass bulb, and the bent type fluorescent lamp, and an illumination device. <P>SOLUTION: The manufacturing method of the bent type fluorescent lamp is provided with a first coating formation process of making a glass tube 3a of a straight tube shape in a perpendicular state and ejecting after suctioning up an absorbing phosphor dispersion solution X from a bottom end opening to a center part and then forming a first coating film 2a drying the phosphor dispersion solution X attached to the glass tube 3a, a second coating formation process of reversing the glass tube 3a, ejecting after suctioning up the phosphor dispersion solution X from the bottom end opening to the center part, and forming a second coating film 2b drying the phosphor dispersion solution X attached to the glass tube 3a, a sealing process to seal a main electrode 4 at both ends of the glass tube 3a with the first and the second coating films 2a, 2b formed, and a glass bulb molding process of carrying out bending treatment to the glass tube 3a with coating films 2a, 2b formed or the glass bulb 3 with the main electrode sealed. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
