| 摘要 |
PROBLEM TO BE SOLVED: To provide glasses for amusement having an amusement effect such as Fukuwarai (make-a-face game) by visually deforming a face itself in an interesting way.SOLUTION: Regarding the glasses obtained by providing the lens part 11 of a glasses frame 10 with an Fresnel prism 12, by adjusting the angle of refraction of a Fresnel prism 12 in such a manner that the optical path of light vertically made incident on the lens part of the glasses is refracted by ≥20° in the upper/lower directions or the right/left directions, when the glasses are put on, a face is visually deformed, and an amusement effect such as Fukuwarai is given. Further, by making one pore or a plurality of pores for securing a field at least at a part of the Fresnel prism 12, the phenomenon that a field is made extremely unclear is prevented, and the safer use thereof is achieved. |
