Abstract: [Problem] To provide an illumination system with which a visual effect is provided such that it is possible to give an appearance of expanding depth on the far side of a wall face, even if a person stands directly in front thereof. [Solution] An illumination system (100) comprises a light source (130), and a reflection board (120) that provides a reflection face that reflects illumination light from the light source (130). The reflection lace of the reflection board (120) is a processed reflection face in which are disposed a plurality of grooves which are very narrow parallel straight lines or parallel curved lines with respect to a flat plane. A support body (110) supports the light source (130) facing and in close proximity to the processed reflection board of the reflection board (120). Light points appear, arranged perpendicularly in the center of the reflection board (120) facing the light source.

Abstract: [Problem] To provide an illumination system with which a visual effect is provided such that it is possible to give an appearance of expanding depth on the far side of a wall face, even if a person stands directly in front thereof. [Solution] An illumination system (100) comprises a light source (130), and a reflection board (120) that provides a reflection face that reflects illumination light from the light source (130). The reflection lace of the reflection board (120) is a processed reflection face in which are disposed a plurality of grooves which are very narrow parallel straight lines or parallel curved lines with respect to a flat plane. A support body (110) supports the light source (130) facing and in close proximity to the processed reflection board of the reflection board (120). Light points appear, arranged perpendicularly in the center of the reflection board (120) facing the light source.