An imaging system comprises a rolling-reset imager that forms an electronic image of an object, a light source illuminating the object with pulsed light, and a bandpass optical filter disposed between the object and the rolling-reset imager. The pulsed light has an illumination frequency spectrum and...http://www.google.de/patents/US7499090?utm_source=gb-gplus-sharePatent US7499090 - Rolling-reset imager with optical filter