| 摘要 |
PROBLEM TO BE SOLVED: To provide an illuminating device which allows for suitable appearance of planting such as roadside trees, while ensuring visibility under a twilight vision environment.SOLUTION: The illuminating device includes a first light irradiation section 21 for irradiating light having a relatively low color temperature, and a high feeling of contrast index FCI, and a second light irradiation section 22 for irradiating light having a relatively high S/P ratio, i.e., the ratio of dark place luminance and light place luminance. The first light irradiation section 21 irradiates a region on the upper side of the second light irradiation section 22 in the vertical direction. |
