One or more LED dice are mounted on a support structure. The support structure may be a submount with the LED dice already electrically connected to leads on the submount. A mold has indentations in it corresponding to the positions of the LED dice on the support structure. The indentations are filled...http://www.google.fr/patents/US7452737?utm_source=gb-gplus-shareBrevet US7452737 - Molded lens over LED die
