A reader for optically reading machine-readable symbols such as barcodes. The reader includes at least one light source for producing light and a number of light emitters for emitting the light from the reader according to a desired sequence. The distinct light emitters are coupled with the at least...http://www.google.de/patents/US7360705?utm_source=gb-gplus-sharePatent US7360705 - Apparatus and method for reading machine-readable symbols
