White housings on a conveyor and rotary table beneath cameras and lights.
Industrial machine vision

Film Defect Inspection

Define which film hole, mark or visible defect requires rejection and what variation is acceptable. Use good, bad and marginal samples to assess presentation and lighting, keeping visible inspection separate from properties that need another test.

Speak directly with Oxford Vision Systems about film holes, marks and visible defects.

Quick answer

How do we detect visible defects in our moving film?

Define the defect types, smallest unacceptable examples and the full web width to inspect. Include clear, printed and reflective regions in the sample set. Trial the proposed lighting and camera arrangement at representative tension and speed, and agree how defect position and affected material will be recorded.

White housings on a conveyor and rotary table beneath cameras and lights.
Person holding a tablet beside an inspection camera and small metal components on a conveyor.
Six useful questions

Describe what you need from film defect inspection before choosing a solution

For in-line inspection using film holes, marks and visible defects, share the normal condition, realistic range and difficult cases the finished system must handle.

Question 1

Visible Defect or Measurement Definition for Film Holes, Marks & Visible Defects

For your initial enquiry about film defect inspection, describe the current position, required outcome, acceptable limits and known exceptions for visible defect or measurement definition for film holes, marks & visible defects. That lets us compare options against your real production rather than one nominal value.

Question 2

Good, Bad and Marginal Sample Range

For your initial enquiry about film defect inspection, describe the current position, required outcome, acceptable limits and known exceptions for good, bad and marginal sample range. That lets us compare options against your real production rather than one nominal value.

Question 3

Part Presentation and Production Speed

For your initial enquiry about film defect inspection, describe the current position, required outcome, acceptable limits and known exceptions for part presentation and production speed. That lets us compare options against your real production rather than one nominal value.

Question 4

Optics, Lighting and Environmental Conditions

For your initial enquiry about film defect inspection, describe the current position, required outcome, acceptable limits and known exceptions for optics, lighting and environmental conditions. That lets us compare options against your real production rather than one nominal value.

Question 5

Recipe, Reject and Line-Control Interfaces

For your initial enquiry about film defect inspection, describe the current position, required outcome, acceptable limits and known exceptions for recipe, reject and line-control interfaces. That lets us compare options against your real production rather than one nominal value.

Question 6

False-Accept, False-Reject and Challenge Criteria

For your initial enquiry about film defect inspection, describe the current position, required outcome, acceptable limits and known exceptions for false-accept, false-reject and challenge criteria. That lets us compare options against your real production rather than one nominal value.

Applications

Two useful starting points for film defect inspection

The right choice changes with visible defect or measurement definition for film holes, marks & visible defects, good, bad and marginal sample range, your line layout and required results.

What happens next

Your route from an initial enquiry to a working solution

You can review decisions about recipe, reject and line-control interfaces and false-accept, false-reject and challenge criteria at each stage.

  1. 01

    Define the Visible Decision and Collect Representative Samples

    Share representative good, bad and marginal samples, including the normal range for visible defect or measurement definition for film holes, marks & visible defects and the difficult good, bad and marginal sample range cases.

  2. 02

    Prove Contrast, Presentation and Timing in an Optical Trial

    Compare suitable methods and use focused trials to show how each option performs against part presentation and production speed.

  3. 03

    Integrate Cameras, Controls, Reject Handling and Recipes

    Connect the equipment to your line, services and controls while resolving optics, lighting and environmental conditions for day-to-day operation.

  4. 04

    Challenge Marginal Cases and Document Agreed Results

    Confirm recipe, reject and line-control interfaces, then complete and record false-accept, false-reject and challenge criteria before your operating team takes over.

Important limits

Know what needs a separate check

Your final solution for film holes, marks and visible defects must reflect the law, current standards and site-specific risks that apply to your installation.