| 摘要 |
PURPOSE: A lighting device is provided to lighten the indoor space by enlarging the output range of the light to floor and side of the indoor space. CONSTITUTION: A lighting device(100) comprises a case(110), a light source(120), and a diffusing plate(130). The case has the accommodation space accepting the light source. The power supply unit(115) is installed in the upper side of the case. The power supply unit supplies the drive power to the light source through the external power supply like connector. The circuit board for applying the power to the light source is installed in the accommodation space of the case. The cooling fin is formed in one side of the accommodation space of the case. The diffusing plate is fixed and coupled in the lower part of the case. The diffusing plate is projected to the outside of the installation space(150). The both side end points of the diffusing plate is projected to the top. The both side end points of the diffusing plate are fixed to the ceiling surface(145). |
