| 摘要 |
PURPOSE:To obtain a fluorescent lamp with a high output by combining and arranging in parallel crosses two luminous tubes formed by bending a U-shaped glass tube further into a U-shape along the direction perpendicular to a plane containing the U-shaped tube at both ends. CONSTITUTION:A U-shaped glass tube coated with a phosphor 2 on its inner surface and having electrodes 3 on both ends is bent further into a U-shape along the direction perpendicular to a plane containing the U-shaped glass tube at both ends to form WU-shaped luminous tubes 1, 1', which are combined in parallel crosses and fitted to a mount 4 storing a lighting device and are further coverted with a globe to form a fluorescent lamp. A cooling tube section as a coldest-temperature control means is provided at least on one of upper and lower bent sections of the luminous tubes 1, 1'. Accordingly, a compact fluorescent lamp having extremely large light flux and high efficiency can be obtained, and its commodity market can be expanded. |
