| 摘要 |
PURPOSE:To prevent lighting unevenness of the whole of an installation surface by providing a central reflector whose longitudinal section is approx. triangular, a side reflecting surface opposed to the upper reflecting surface of this central reflector and a side reflector which has a side reflecting surface opposed to a lower reflecting surface. CONSTITUTION:A part of the outgoing beam from a light source 12 is reflected on the upper reflecting surface of a central reflector 18 through an illuminating opening 13 of a lamp body 11 and the light reflected on this upper reflecting surface is illuminated toward a surface where a lamp body 11 is installed such as the surface of a ceiling to which the lamp body 11 is installed. A part of the outgoing beams from the light source 12 is reflected toward the lower reflecting surface of the central reflector 18 on the reflecting surface 23, 24 of a side reflector 19, and the light reflected on this lower reflecting surface is illuminated downward. Thereby, not only the lower direction of the lamp body 11, but also the surface, such as the ceiling surface, etc. where the lamp body 11 is installed so that the unevenness of illumination over the whole surface to which the lamp body is installed can be reduced and comfortable visual circumstance, obtained. |
