| 摘要 |
PROBLEM TO BE SOLVED: To provide a plane light-emitting device, thin yet with superb uniformity of extremely bright plane illumination with a light source arranged on a plane. SOLUTION: With the plane light-emitting device with one or a plurality of light sources arranged on a plane and a lens placed in front of the light source(s), the irradiating face side of the lens in the light source axis is dented toward the light sources side so that light from the specific spot where the light source is placed is completely reflected. |
