Take a peek:
Here is another shot:
Hopefully it will make the pictures more informative.
The light box itself was easy enough to build. I used some scrap wood I had hanging around in the basement, my pocket screw jig from Kreg, an old t-shirt, and some plain paper. The light is provided by a clamp light plugged into the socket behind my bench. All in all, it took me about 15 minutes to assemble everything.
I still have to play with the bulb in the clamp light because it seems a little blue and a little dark. I am sure I will find the right combination eventually.