| 摘要 |
PURPOSE:To economically obtain a high brightness bulb type fluorescent lamp without giving influence on productivity by executing bending and scattering processes to the light emitting bulb itself of the light emitting internal bulb. CONSTITUTION:In the process for thermally molding a light emitting internal bulb 4 into, for example, the U-shaped bulb, the surface is recessed or protruded in the diamond pattern 5. Thereby, the light radiated from the light emitting internal bulb can be bent locally by such a diamond pattern 5 and a high brightness lamp, in appearance, can be obtained without any special processes. |
