An LED light source for a lensed lamp is described. An LED chip sits in a hollow having a rectangular floor. A lower portion of the hollow has steep walls and accommodates the part of the chip that does not emit light. An upper part of the hollow has four side reflectors extending parallel to the sides...http://www.google.fr/patents/US6095666?utm_source=gb-gplus-shareBrevet US6095666 - Light source
