An engineered lighting system for high speed video inspection includes an array of light emitting diodes including light emitting diodes for use in time delay integration (TDI) inspection of web materials. The light emitting diodes of the array are selectively controllable to accomplish sequential illumination...http://www.google.es/patents/US5172005?utm_source=gb-gplus-sharePatente US5172005 - Engineered lighting system for TDI inspection comprising means for controlling lighting elements in accordance with specimen displacement
Engineered lighting system for TDI inspection comprising means for ...
