intrinsically safe laser sourced illumination . a system for illumination is disclosed , including a plurality of laser illumination sources configured to transmit laser beams ; a dichroic mirror spaced from the plurality of laser illumination sources and having an aperture configured to allow the laser beams to pass through the dichroic mirror , the remaining surfaces of the dichroic mirror configured to reflect the laser beams ; a phosphor element spaced from the dichroic mirror and coated with a substance to fluoresce when struck by the laser beams and configured to disperse the laser beams and to output combined light that includes fluorescent light and the dispersed laser beams ; and an illumination output arranged to receive the combined light from the phosphor element and to output illuminating light containing both the fluorescent light and the dispersed laser beams . methods are also disclosed .