Are ESLs A Mercury-Free Replacement for CFL Lights?

Are ESLs A Mercury-Free Replacement for CFL Lights? | Green Prophet.

If only there were a light bulb as efficient as a compact fluorescent light (CFL), but without the ghastly green light and brain-eating  toxic mercury.   Am I asking too much?  The inventors of the Electron Stimulated Luminance (ESL) lights don’t think so.  A company called Vu1 plans to sell ESL bulbs in Europe and the Mideast in 2013.  Vu1 lights are based on cathode ray tube (CRT) technology, are dim-able and have the cozy glow of incandescent light bulbs.  How did Vu1 accomplish this magic?  It helps that I know a little bit about CRTs from the days when my brother and I repaired old televisions.