| 摘要 |
A lighting panel capable of forming at a long lighting distance a lighting area with a constant flat illuminance distribution at a high illuminance with power saved. The lighting panel (100) provided with a plurality of linear light source units (200), wherein the linear light source units (200) comprise light emitting units having a plurality of light emitting diodes linearly arranged on a substrate, first reflection units respectively provided on the light outgoing side of the light emitting unit to correspond to respective plurality of light emitting diodes and consisting of parabolic surfaces of which the focusing positions coinciding with the light emitting surfaces of the light emitting diodes, and second reflection units arranged in pairs on the further light outgoing sides of the first reflection units and in parallel to the arranging direction of the light emitting diodes across the light emitting diodes and having flat reflection surfaces for reflecting lights from the light emitting diodes toward the light outgoing sides, the linear light source units (200) being arranged annularly on a module panel (1). |
