| 摘要 |
<p>The purpose of the present invention is to provide a foam diffuser-reflector having a bubble structure, the bubble structure being precisely controlled, the bubble fraction being high, the foam diffuser-reflector having numerous fine surface openings that are precisely controlled, and the foam diffuser-reflector being capable of demonstrating extremely good diffusion and reflection performance. This foam diffuser-reflector includes a foam body having a continuous bubble structure having through holes between adjacent spherical bubbles, and has a plurality of projections 0.05 mm-0.5 mm high on one or both sides of the foam body, the foam diffuser-reflector is held between flat plates from upper and lower sides thereof, the average value (Ly) of the shortest distance (y) between top ends of lateral surfaces of adjacent projections is at least 0.5 mm when the foam diffuser-reflector is compressed 5% in the thickness direction, the average pore diameter of the spherical bubbles is less than 20 µm, the average pore diameter of the through holes is 5 µm or less, and the surface of the foam body has surface openings having an average pore diameter of 20 µm or less.</p> |
