Quick Answer:
Roll-2-Roll sensors are line scan cameras reimagined — patented fiber-optic optics replace circular lenses, eliminating calibration, distortion, and the need for vision programming.
Both Roll-2-Roll® sensors and traditional line scan cameras capture one-dimensional scans to build profiles of continuously moving webs. However, Roll-2-Roll® sensors use patented linear fiber-optic arrays instead of circular lenses. This fundamental difference delivers several advantages:
- 100x more light sensitivity — larger pixels (63.5 µm vs. 5–14 µm in conventional cameras) capture significantly more light per pixel
- Working distance of 15–25 mm (0.6–1.0 in) — the fiber array's 1:1 imaging allows compact mounting
- Zero lens distortion — linear fiber optics behave like telecentric lenses, eliminating the aberrations and geometric errors inherent in circular optics
- No vision engineer required — adaptive edge detection algorithms are built in, so setup takes minutes instead of the weeks typically required for traditional line scan camera integration
The result is line-scan-camera-grade measurement capability, without calibration, custom software, or specialized imaging expertise.