| 摘要 |
PURPOSE:To prevent the lowering of brightness due to a louver and rectify the radiated light of a light source to effectively use it. CONSTITUTION:A louver apparatus is composed of a louver 4 made of a heat resistant plastic film having a level restoring property and a reflecting plate 1 which is installed in the back side of a light source and made of the same heat resistant plastic film and it is installed in an illuminator. Consequently, the radiated light is rectified and used effectively and the light source is made to be a light source with high brightness and a wide radiation range. |
