An integrated scanner for scanning a barcode is formed on a common substrate. The scanner may include a micro-machined mirror, a laser diode, and a detector, mounted on a single substrate or several connected substrates. Lenses can be used to focus a laser beam from the laser diode as well as expand...http://www.google.de/patents/US6186399?utm_source=gb-gplus-sharePatent US6186399 - Scanner and mirror with shape memory alloy hinges
