It must be confessed that when Christianity began to project a theology it was already deeply impregnated by Hellenic influences.
If we assume that a normal eye observes the image through the eyepiece, the eyepiece must project a distant image from the real image produced by the objective.
As, however, the object represents a real image, the problem is to project a transparent diapositive.
Heptagon has also produced a device that uses a semiconductor laser to project a ' virtual keyboard ' on to a surface.
However, for this project a method called phenomenology is planned.