Colortrac Wide Format Scanner Glossary
2D LEDs
Most CIS wide format scanners have one set of LEDs positioned at one end of each CIS sensor. These LEDs are shone down a single light guide to provide illumination.
In the Colortrac SmartLF Ci 40 large format scanner, each CIS sensor has two sets of LEDs, one at each end. These are shone down two light guides. Because illumination is bidirectional instead of unidirectional there is less potential for shadowing.
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Colortrac - Large Format Scanner Manufacturer Site Map
Colortrac manufactures large format scanners for technical documents, blueprints, maps, graphic arts, archiving, copying and EDM;
mono and color wide format scanners; D size / A1 scanners; E size / A0 scanners; and high speed, high volume large format scanners - all at the right price.