He talks about using LED lighting directed down fibre optic feeds - you can see the white fibres optic lines in some of the images. This isn't EL at all, as has already been stated, but optical path distributed LED lighting.
Very cool though, and very good workmanship!
*edit* on second viewing, what I though were fibres look to be wires. He talks about fibres in the text though - maybe it's a little lost in translation!
