| 摘要 |
PROBLEM TO BE SOLVED: To improve uniformity of brightness on an output face without deteriorating light emission efficiency.SOLUTION: A lighting system includes: a case with a front face and a rear face forming a hollow light-recycling cavity having an output face; and a light source fitted at a first side face forming the light-recycling cavity. The rear face is slanted so that a distance from the front face to the rear face is monotonously decreased from the first side face toward an opposing second side face. |
