Fourth Generation Impossible Objects (2015-)

"Imvisible Objects" That Partly Disappear in a Mirror


I discovered a new class of objects, in which part of objects appear or disappear in a mirror. They can be constructed using the same method as ambiguous objects in a slightly different manner.

In this page, we present various behaviors of imvisible objects using examples from hexagonal prisms. The following images are photos of actual scenes, in which an object is placed in front of a vertical mirror; no computer graphic modification was addes. You could enjog drastic difference between the direct view of an object and its image in a mirror.


Imbisible Object VH

The object appears to be a hexagonal prism standing in such a way that the axis of the prism is horizontal. There is a rooster at the bottom plate. In the mirror image, however, the lower half of the prism together with the rooster disappears just as if the lower part is buried in the dest. Where is it?
Here is an unfolded surface diagram of this object, from which we can construct the object by paper crafting.


Here are many other invisible objects



Invisible Object HV

The upper half of the object disappears in a mirror.


Invisible Object VH with Bar

The lower half of the object disappears in a mirror.


Invisible Object VHV

Par of the object is invisible in a direct view, but appears in a mirror.


Invisible Rooster 1

The object does not change in a mirror, but one of the roosters disappear.


Invisible Rooster 2

The object does not change in a mirror, but one of the roosters disappear.  


Invisible Object HVH

The object is augmented in a mirror.


Invisible Object HVHV

Part of the object that is not visible in a direct view appears in a mirror.


Invisible Object VHVH

The object changes drastically in a mirror.


Invisible Object HV

The object changes drastically in a mirror.  


Exchange of Upper and Lower Chickens

The object is the upper half of the hexagonal prism, but its mirror image is the lower half.


Jumping Rooster

The object is a twelve-plate prism, and it is reflected in a mirror as it is. However the roster at the bottom jumps up to the top in a mirror. This illusion was selected as one of the best tens in the Optical Illusion Contest 2015,


The secret of invisible objects is described in a book. (English version is in preparation.)  

「変身立体2:鏡に映すと現れる!消える!入れ替わる!透身する立体の秘密」