Infinity mirror

[2] If the mirrors are not precisely parallel but instead are canted at a slight angle, the "visual tunnel" will be perceived to be curved off to one side, as it recedes into infinity.

[1] A weaker version of this effect can be seen by standing between any two parallel reflective surfaces, such as the glass walls of a small entry lobby into some buildings.

[citation needed] The 3D illusion mirror effect is produced whenever there are two parallel reflective surfaces which can bounce a beam of light back and forth an indefinite (theoretically infinite) number of times.

For example, most mirrors use glass with small amounts of iron oxide impurities, giving the reflection a slightly dim green tinge.

Yayoi Kusama, Josiah McElheny, Ivan Navarro, Taylor Davis, Anthony James,[6] and Guillaume Lachapelle[7] have all produced works that use the infinity mirror to expand the sensation of unlimited space in their artworks.