In one embodiment, the invention provides an imaging device having a light source, a photo-sensor and a scanning assembly. In some embodiments, the light source is fixedly mounted in the first end of an elongated sheath and is adapted for illuminating a target, and the photo-sensor is mounted on the...http://www.google.es/patents/US20030130562?utm_source=gb-gplus-sharePatente US20030130562 - Imaging device and related methods
