| 摘要 |
PROBLEM TO BE SOLVED: To prevent a position of a gap between adjacent unit members from being visually recognized in a luminaire for using an optical member configured by arranging a plurality of unit members.SOLUTION: The shape of opposing end parts are set so that a gap S2 between opposing end parts of adjacent unit members 30, 30 is different in a thickness direction of the unit member 30. Light L emitted frontward from a light source part passes through the gap S2 between end parts 30b', 30b' opposing to the adjacent unit members, as shown in (b), and directly travels to the front of the unit members 30 without entering the unit members 30. Therefore, as shown in (a), occurrence of obvious variation of illuminance distribution of a luminaire 10 can be suppressed which is caused by the light L radiated in a vicinity portion of a gap S between opposing end parts 30b, 30b of the adjacent unit members 30, 30 being totally reflected at an end part (end surface) 30b of the unit member 30. |
