Light box producing illusion of appearance and disappearance of one image on another has front image printed on microperforated support and second image on translucent support behind it, both images being illuminated by flashing lamp

摘要

The light box (1) which produces the illusion of appearance and disappearance of one image on another has a front image printed on a microperforated support (3). A second image is printed on a translucent support (4) mounted behind it and both images are illuminated by a flashing lamp (5).