| 摘要 |
PROBLEM TO BE SOLVED: To provide a light-condensing device capable of efficiently condensing irradiation light emitted from a plurality of LED light-emitting parts to a predetermined shape while reducing light loss, and to provide a lighting apparatus using the light condensing device.SOLUTION: A light-condensing device 20A includes a cylindrical casing part 21A to be attached in an irradiation direction of LED light-emitting parts 30 and an end cap 22A for covering an irradiation direction side end part of the casing part 21A. The casing part 21A includes an outer peripheral wall 24 and inner walls 25A for partitioning the inside of the outer peripheral wall 24 along the outer peripheral wall 24 correspondingly to the respective LED light-emitting parts 30. The end cap 22A includes apertures 223A corresponding to partition parts 26A partitioned by the inner walls 25A of the casing part 21A. Thereby, light from the LED light-emitting parts 30 is irradiated in a shape including the apertures 223A of the end cap 22A because the light is passed through the partition parts 26A and further passed through the apertures 223A of the end cap 22A. Consequently, a light beam LB1 from the LED light-emitting parts 30 can be irradiated while reducing light loss and improving light-condensation efficiency. |
