How do application notes improve your machine vision lighting selection? Practical case studies bridge the gap between theoretical optical setups and real-world defect inspections. By comparing representative images and tested configurations against your specific production limits, you can confidently validate your lighting approach before finalizing your system purchase.
Open the matching series, then send the part or the images.
**Precise part documentation sets the contrast baseline.** Record part material, surface finish, coating, target defect width, and pass/fail criteria.
**Geometry comparison reveals the hidden defect structures.** Evaluate low-angle bar for shallow scratches, backlight for silhouettes, or coaxial for mirror reflection.
**Motion synchronization enables sharp image capture.** Verify line rate, exposure timing, strobe pulse width (<5µs), and trigger source.
**Identifying limits prevents unexpected production failures.** Identify conditions where contrast becomes sensitive to surface oil, dust, or part tilt.
It identifies the target material and feature, the optical and camera setup, representative images, tested conditions, and unresolved variables. A product name alone is not enough for final selection.
No. An application example can show what to reproduce and what to test, but production results depend on the part, defect definition, camera, optics, mechanics, process variation, and operating conditions. Discuss the actual application before final selection.
Share representative good and bad samples or images, the inspection target, material and finish, camera and lens information, field of view, working distance, speed, trigger details, and mounting constraints. LuxMV can then discuss the conditions and open items for an RFQ.
Inspection challenge: Reflection can hide shallow marks, while normal surface texture can be mistaken for a defect.
Variables to compare: Record the part finish, camera angle, lighting angle, wavelength, polarization state, exposure, and representative good and bad samples.
Useful notes: Keep the original images, setup photographs, settings, and the conditions where contrast becomes unreliable.
Inspection challenge: Material transmission, coatings, thickness, and camera sensitivity can change whether a feature is visible.
Variables to compare: Record the material stack, viewing direction, illumination geometry, spectral range, optics, exposure, and sample variation.
Useful notes: Document what the supplied samples show and identify the material or process changes that require a new evaluation.
Inspection challenge: Part motion, synchronization, exposure, and heat constraints interact with image sharpness and usable contrast.
Variables to compare: Record line speed, trigger path, exposure, controller mode, duty cycle, mounting geometry, and the inspected feature.
Useful notes: Preserve synchronized sample images and the tested operating conditions, then discuss changes before applying the result to another line or production condition.
Cross-comparison clarifies application strategies. The table below summarizes typical geometries, target defects, and common challenges for distinct material and motion profiles.
| Application Profile | Recommended Geometries | Target Defects | Key Challenges |
|---|---|---|---|
| Reflective Surfaces | Coaxial, Dome, Low-Angle | Scratches, dents, laser marks | Direct glare, varying surface texture |
| Transmissive Materials | Backlight, IR, UV | Internal flaws, coatings, edges | Thickness variations, light refraction |
| High-Speed Motion | High-Intensity Strobe | Blur-free edge detection, alignment | Trigger timing, heat dissipation |
