Valuable paper validator

A valuable paper validator comprising:

• a delivery unit for delivering a valuable paper to a validation unit for verifying the authenticity of the valuable paper, said delivery unit having a delivery path for the passing of a valuable paper for verification;
• an optical emitter module arranged above said delivery path, said optical emitter module comprising a plurality of LED packages arranged in parallel, said LED packages each comprising a plurality of light emitting diode chips controllable to emit different wavelengths of intense pulsed light;
• a plurality of first lenses set between said LED packages and said delivery path and respectively arranged in axial alignment with said LED packages;
• an optical receiver module arranged below said delivery path, said optical receiver module comprising a plurality of photodiodes respectively arranged in axial alignment with said first lenses and said LED packages and adapted to receive light passing from said LED packages through valuable paper being delivered through said delivery path respectively;
• and
• a plurality of second lens set between said delivery path and said photodiodes of said optical receiver module and arranged in axial alignment with said first lenses respectively.