A proposal for a new way of lighting a dining table
As an example of future lighting, Hiroyuki Kondo and Sean Wang proposed projection mapping for a dining table made with a two-way mirror
How it works
The augmented light is made up of three parts; a projector, a two-way mirror and and some cups.The light source is set underneath the table. Some of the light is reflected back down by the two-way mirror and some passes through the mirror and diffuses at the ceiling. Because of this the light does not strike the user’s eye directly and no pattern appears on the mirror.
Some light from the environment is reflected on the surface of the mirror and is visible to the user. So, from the perspective of the user, the surface looks like a mirror. But, when a cup is put on the mirror, the light which goes through the mirror, diffuses on the cup making a pattern appear on the cup.