Wide-material defect detection route
Best used when the inspection must cover moving film, paper, textile or sheet material without motion distortion.
Continuous web and roll-to-roll inspection 3-5 week field-width, speed and line-light review
Anonymized delivery case
Roll-to-Roll Web Defect Inspection
Application brief for continuous web, film, textile or paper defect inspection using line scan cameras and line lighting. This route includes 3 measurable checks and 4 project evidence items.
Continuous web and roll-to-roll inspectionWide-material defect detection route3 measurable checks before quote
Component route reviewed before delivery-ready quote.
Line-scan cameraLine lightEncoder synchronizationIndustrial lens route
What makes this scenario difficult?
Wide moving material needs even illumination, encoder synchronization and enough line rate to avoid missing small defects.
Which component route should be reviewed first?
Use line scan cameras with line lighting, encoder input and field-width calculations before selecting sensor resolution and lens route.
How should the result be validated?
Full material width mapped before sensor selection
Case decision frame
Use this route only after the production constraint is measurable.
Anonymous cases are useful when they show the problem, constraints, hardware stack and evidence needed for a repeatable RFQ. Use these four fields to compare your project.
Wide moving material needs even illumination, encoder synchronization and enough line rate to avoid missing small defects.
Full material width mapped before sensor selection Smallest defect target converted into pixel requirement
Line-scan camera + Line light + Encoder synchronization + Industrial lens route
Material sample photos, Roll width and web-speed note, Defect-size target
Inspection workflow
Steps to validate this application route before hardware selection.
The right product family depends on measurable samples, line conditions and acceptance criteria. Use this workflow to move from application idea to testable project evidence.
- Measure material width and target defect size Measure web width, defect size, defect direction and the inspection area that must be covered.
- Confirm web speed and encoder strategy Confirm encoder availability, speed variation and line-rate margin before sensor selection.
- Test line light uniformity Test line-light uniformity from edge to center on the real material.
- Validate image stitching and defect threshold Validate stitching, threshold and defect classification on moving samples before acceptance.
What must be proven before the route is safe to quote.
- Full material width mapped before sensor selection
- Smallest defect target converted into pixel requirement
- Edge and center illumination checked for uniformity
Evidence Deyi Vision should review first.
Material sample photosRoll width and web-speed noteDefect-size targetEncoder or trigger note
Trust evidence
Why this page is anonymous instead of naming a customer.
Many inspection projects expose product defects, line speed and factory process details. Deyi Vision therefore publishes anonymized delivery evidence routes and keeps customer names, drawings and plant photos protected unless the buyer approves disclosure.
Related product families
Start the hardware review with these component routes.
Product route
Machine Vision Lighting
Ring, bar, coaxial, dome, backlight, dark-field and line-light routes matched to defect contrast, edge clarity and part surface behavior.
Product routeMachine Vision Lenses
FA lenses, C-mount lenses, line-scan lenses, large-format lenses, low-distortion lenses, telecentric lenses and custom optics for inspection cells.
Product routeLine Scan Cameras
Line scan camera routes for web inspection, roll-to-roll materials, high-speed conveyors and continuous production lines where area-scan coverage becomes inefficient.
Related solution and selection pages
Use these pages to expand the route before RFQ.
Solution
Automated Visual Inspection
Build automated visual inspection systems for defect detection, presence checks, surface inspection, orientation, measurement and repeatable pass/fail output.
SolutionVision Inspection System
Plan a complete vision inspection system for defect checks, presence, measurement, barcode reading and pass/fail output.
SolutionDimension Measurement
Use calibrated lenses, lighting and cameras to stabilize measurement under production conditions.
ResourceLine Scan Camera Lighting Setup
Plan line scan camera lighting by material width, web speed, exposure time, line light geometry, lens field width, encoder synchronization and edge-to-center uniformity.
ResourceLine Scan Camera vs Area Scan Camera
Compare line scan and area scan cameras by motion type, material width, defect size, encoder timing, lighting stability and integration risk.
ResourceMachine Vision Lighting Types
Compare ring, bar, dome, coaxial, backlight and line lighting types by surface behavior, defect contrast and installation constraints.
Application RFQ
Need a route for roll-to-roll web defect inspection?
Send sample images, line speed, tolerance and the current failure mode. We will map the application to camera, lighting, lens, reader, 3D or smart camera routes.
Request engineering RFQApplication FAQ
Clarify the application route before selecting hardware.
Is roll-to-roll web defect inspection a named customer case study?
No. This page is an anonymized delivery evidence route for continuous web and roll-to-roll inspection. It explains project type, hardware stack, sample evidence and measurable checks without claiming a named customer deployment.
What should I send for a roll-to-roll web defect inspection RFQ?
Send material sample photos, roll width and web-speed note, defect-size target, encoder or trigger note. Include good and bad samples whenever possible so engineering can test the route before recommending hardware.
Which product families are usually involved?
Line Scan Cameras, Machine Vision Lighting, Machine Vision Lenses are the first product families to review, but the final route depends on sample images, speed, tolerance and installation space.
What information should I send before requesting a machine vision quote?
Send part photos or drawings, target defect or measurement goal, field of view, working distance, line speed, accuracy target, lighting limits and any current camera, lens, light, barcode reader or competitor model.
Do I need a 2D or 3D machine vision system?
Use 2D when contrast, edges, labels or position are enough to judge the part. Use 3D when height, profile, gap, volume, weld shape or surface geometry decides pass or fail.
How should I choose machine vision lighting?
Start from the defect and material surface instead of the camera model. Backlight helps edge measurement, coaxial and dome lighting help reflective surfaces, and bar or ring lighting often works for general presence and defect checks.