| 摘要 |
PURPOSE:To obtain high illuminance by providing a reflection plate incorporating plural light sources, a diffusion translucent plate, and a light diffusing body provided between respective light sources. CONSTITUTION:This surface light emitting device is provided with the reflection plate 1 having built-in plural light sources 2 and having an inclined sidewall, the diffusion translucent plate 3, and the light diffusing plate 5 between respec tive light sources. As the light diffusing body 5 provided on the almost middle of two light sources 2, for instance, an iron plate, etc., are molded to form a triangle whose cross-section is hollowed, and it has a reflection mirror 6 whose surface is formed with an evaporating film of Al or Ag to obtain excel lent reflectance. Thus, the light emitted from the light source 2 is reflected by the reflection mirror 6, and emitted from the upper part, it supplies uniform illuminance together with the light reflected by the reflection plate 1, and fur ther, light absorption by the reflection mirror 6 is reduced to obtain the high illuminance. |
