| 摘要 |
PROBLEM TO BE SOLVED: To provide a large and uniform surface light-emission by providing at least one light-emitting part having a rod-like light source disposed along a light-incoming surface. SOLUTION: In a light-emitting part 10, a fluorescent tube 12 as rod-like illuminant is disposed along a light-incoming surface 11a of a light-guiding plate 11. Part of light emitted from the fluorescent tube 12 directly comes in the light-incoming surface 11a and the rest is irregularly reflected by a lamp reflector 13 and comes in the light-incoming surface 11a. Light introduced from the light-incoming surface 11a is irregularly reflected by a light reflector 14, passes through the interior of the light-guiding plate 11, and is emitted from a light-reflecting surface 11b. Or, the light is furthermore irregularly reflected by light reflectors 15, 16 and emitted from the light-reflecting surface 11b. Light introduced from the light-emitting surface 11b into a light-diffusing plate 17 is diffused in the forward direction by a light-diffusing function of the light- diffusing plate 17 and emitted in the direction shown by an arrow 30 as light uniformed in the direction of the surface. |
