An embodiment of a scanning system is described including optical elements that direct an excitation beam at a probe array, detectors that receive reflected intensity data responsive to the excitation beam, where the reflected intensity data is responsive to a focusing distance between an optical element...http://www.google.co.uk/patents/US20040012676?utm_source=gb-gplus-sharePatent US20040012676 - System, method, and product for scanning of biological materials
