| 摘要 |
PROBLEM TO BE SOLVED: To provide a light guide body having high hiding performance and luminance uniformity, a luminaire using the light guide body and a display device.SOLUTION: A light guide body has a first main surface and a second main surface corresponding to each other and includes: a plurality of first optical elements formed on the first main surface, and deflecting light inside the light guide body to the second main surface side; a plurality of ridge-like second optical elements formed on the second main surface, and emitting the light propagating in the light guide body from the second main surface; and a plurality of third optical elements formed on the surface of the second optical elements, and emitting the light propagating in the light guide body from the second main surface. In the first optical element, depth or height of the first main surface from the surface is within a range of equal to or more than 3 μm and equal to or less than 50 μm. In the second optical element, depth or height from the surface of the second main surface is within a range of equal to or more than 2 μm and equal to or less than 100 μm. In the third optical element, depth or height is within a range of equal to or more than 0.5% and equal to or less than 5% of the depth or the height of the second optical element, and width is within a range of equal to or more than 0.01 μm and equal to or less than 3.0 μm. |
