A polarized light emitting diode (LED) includes a marker indicating a polarization direction. A package for the LED also includes a marker indicating the polarization direction. The markers on the LED and package are used for mutual alignment, wherein the LED is attached in a favorable orientation with...http://www.google.ca/patents/US7723746?utm_source=gb-gplus-sharePatent US7723746 - Packaging technique for the fabrication of polarized light emitting diodes
