Algodoo

This is a laser circuit for a 7 segment display. I've added it as a response to nxdt's attempt at one which lags. Hopefully he can pick out what he likes from this version.

There is no actual "display" here, but the circuit is all set up for the 7 segments which are the purple rectangles. If you were to add the actual display, then the inputs to that display would be positioned where the purple rectangles are now.

controls
1-4 to control the inputs (binary)