The TV in the video below the break is an older LCD ... but he does something much cleverer. An old DLP projector with its color wheel removed projects a high-res luminance map onto the back ...

Here’s yet another. [Nuri Erginer] had a DLP projector on hand, and with the addition of some reducing optics, managed to turn it into a one-shot PCB exposer. If you’ve ever used photo-resist ...