| 摘要 |
PROBLEM TO BE SOLVED: To provide a coaster with a light source in which a misty smooth fine bubble-containing layer formed under a boundary liquid level between a foam layer and a cereal decomposition product-containing effervescent beverage layer is lighted up and the scattered light is emitted laterally.SOLUTION: A coaster 10 with a light source includes: a base 20 having at least the light source to apply upward light comprising strength for lighting up a fine bubble-containing layer 85; a coupling part coupled to the base 20; and an intermediate member 30 positioned in the upper part of the coupling part, and having a half transparent part with at least a side surface subjected to a surface treatment. The light applied from the light source lights up the fine bubble-containing layer 85, and is scattered by the half transparent part, and thereby the scattered light is emitted to the side part outward of the half transparent part. |
