An optical reader in one embodiment can include a substrate defining an opening and solder pads coupled to the substrate proximate the opening. A laser diode including first, second, and third electrical leads can also be coupled to the substrate. First, second and third solder pads can be provided on...http://www.google.de/patents/US7090132?utm_source=gb-gplus-sharePatent US7090132 - Long range optical reader
