This sounds interesting, I've got some sketches I did at work.
The top right has silver mirrors, which "cannot lie" that reflect the light of the lantern and filter out all deception.
And the bottom right has several lenses it uses to filter the light.
Hush, little child, don't be afraid;
As shadows twist and mind plays tricks;
Won't you please come out to play;
Not real screams, you're imagining things;
Find what was hidden by the light of day;
These nightmares are real, only in your mind;
How slowly time ticks, when you're held by pixi tricks.