| 摘要 |
PURPOSE:To facilitate the installation of a switching unti in an illuminator and simplify the construction, by providing the switching unit with a holder, supporting an electric bulb by the holder and a housing and installing the switching unit in the housing. CONSTITUTION:A switching unit 2 is provided with a circuit board 21, switch parts 22 and a holder 41 for supporting an electric bulb 1. The bulb is nipped by the holder 41 of the switching unit 2 and another holder 42 provided on a housing 3. The switching unit 2 is installed in the housing 3 so that the electric bulb 1 and the switching unit 2 are isolated from each other by the wall 31 of the housing 3. This results in facilitating the installation of the switching unit in an illuminator and simplifying the construction. |
