Cheap Way To Make Night Vision Camera

Very good read found on how to make cheap night vision camera. Basically you can have convenient light sources like incandescent bulbs or dark light lamps and use IR  filters to filter out visible light from the source. Camera picks up only IR light and to the human eye dark area is lit up.

As a filter you can use developed photo films, floppy discs or special filters and illuminate the area with infrared light. This way you can cheaply make load of IR light without buying IR leds.

Further read about making cheap night vision solutions read this site.