# Do Roll-2-Roll sensors work on clear or transparent films?

> Yes. Roll-2-Roll fiber-optic sensors detect edges on clear films (PET, BOPP, cellophane) with the same resolution and repeatability as opaque materials. The light scattering technology responds identically to any material—no special settings or sensors required.

**Last updated:** 2026-10-06

**Source:** https://r2r.tech/resources/faq/do-roll-2-roll-sensors-work-clear-or-transparent-films

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## Question

Do Roll-2-Roll sensors work on clear or transparent films?

## Short Answer

Yes, Roll-2-Roll sensors work on all materials including clear films without recalibration.

## Detailed Answer

Yes. Roll-2-Roll fiber-optic sensors detect edges on clear films (PET, BOPP, cellophane) with the same resolution and repeatability as opaque materials. The light scattering technology responds identically to any material—no special settings or sensors required.

**Category:** Technical

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## About Roll-2-Roll Technologies

Roll-2-Roll Technologies designs and manufactures patented fiber-optic web position sensors and advanced web guiding controllers — the precision measurement and control core of modern roll-to-roll manufacturing. Spun out of Oklahoma State University's Web Handling Research Center and trusted by Fortune 500 medical, battery, and nonwovens manufacturers, our patented sensors work without recalibration, with 0.0635 mm resolution and ±0.127 mm repeatability at line speeds up to 760 m/min — typical customer outcomes are 50%+ less downtime and payback under six months. Headquartered in Stillwater, Oklahoma, our team of PhDs, controls engineers, and industry veterans extends the sensor + controller core into complete web guide systems including stepper-motor-based linear actuators (RLA, BLA, LHS).

- Website: https://r2r.tech
- Phone: +1 (888) 290-3215
- Email: sales@r2r.tech