The coefficient of reflectance of the output reflective layer is determined by a mathematical relationship which takes into consideration the position of {HEAD ~ the reflective layer} from {TAIL ~ the light entering region} and the amount of light which must pass through the reflective layer to provide uniform illumination of the document 
The coefficient of reflectance of the output reflective layer is determined by a mathematical relationship which takes into consideration the position of { HEAD ~ the reflective layer } from { TAIL ~ the light entering region } and the amount of light which must pass through the reflective layer to provide uniform illumination of the document
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH