Light Source and Exposure

This model uses an LED array for the light source. Light from the LED array (LEDB) [A] goes to the original via the light guiding panel [B] and the reflector [C]. Then from the original, the light follows the light path to the CCD.

The elements in the array are more densely spaced at the ends than at the center, to make sure that enough light reaches the left and right edges of the original.

The light reflected from the original travels as follows:

LED exposure -> 1^st mirror [D] -> 2^nd mirror [K] -> 3^rd mirror [E] -> 4^th mirror [L] -> 5^th mirror [F] -> Lens [H] -> CCD [I]