A note on glasses that can see through cards

A note on glasses that can see through cards

In some film and television works or fantasy situations, there may be so-called glasses that can see through the cards, but in the real world, such glasses do not exist. From the perspective of optical principle, ordinary playing cards are made of opaque materials such as paper, which cannot be penetrated by light and carry card information to be imaged on the human eye or special lenses. Even if there are some glasses that claim to have a see-through function, they do so using special tricks or cheats. For example, some illegal gambling devices can achieve the effect of "seeing through the cards" by making special marks on the cards and matching them with specific contact lenses or lenses, but this is serious cheating and is strictly prohibited in any legal games and competitions. It is important to recognize that the use of such cheating tools to level the playing field is not only a violation of ethics, but also a violation of the law. In daily life and all kinds of game activities, the principle of fairness and justice should be upheld, and such improper means should not be sought, so as to maintain a good social order and game atmosphere.