Translucent Plastic Inspection Automation

See through the scatter with our advanced vision systems designed for translucent and semi-transparent materials

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Materials We Inspect

Our systems are optimized for a wide range of translucent and semi-transparent plastics across industries

PP/PE
PC
PMMA
PET
PA
TPEs
Blends

Why Translucent Plastics Are Hard—And How We Solve It

Translucent parts transmit light but scatter it internally, creating unique inspection challenges

Challenges

Low Contrast

Defects blend with milky background, making detection difficult

Sub-surface Inclusions

Bubbles, gels, and contaminants don't register in standard bright-field

Thickness Variations

Altered brightness causes false calls in traditional systems

Mixed Signatures

Gloss vs. matte zones from molding create inconsistent readings

Our Solutions

Advanced Lighting

Transmission/backlight converts internal structure into measurable contrast

Polarization

Manages surface glare and visualizes stress in transparent materials

Spectral Tuning

Optional UV/NIR enhances contrast on specific resins and additives

Live Vision AI

Adaptive background models with thickness-aware false-positive control

Microscopic Capability

With the right optics, Intelgic detects surface scratches <10 µm and internal inclusions ≈20–50 µm (material-dependent), far beyond human inspection capabilities.

10µm
Surface Scratches
20-50µm
Internal Inclusions

Defects & Checks We Cover

Comprehensive inspection capabilities across material, surface, geometry, and functional aspects

Material & Molding

  • Bubbles/voids, gels, black/white specs
  • Flow/knit lines, splay, burn marks
  • Sink marks, warpage, orientation streaks

Surface/Cosmetic

  • Micro-scratches, scuffs, dents, stains
  • Orange peel (painted translucent)
  • Haze/cloudiness variations

Geometry & Integrity

  • Edge chips, flash, short shots
  • Silhouette dimensions (holes/slots)
  • Wall-thickness proxies via transmission

Functional/Optical

  • Lightguide/diffuser uniformity
  • Pinhole/leak path indication
  • Marking & traceability verification

Industry Applications

Our solutions serve critical quality control needs across multiple industries

Automotive

  • Fluid reservoirs & washer tanks
  • Lightguides & interior diffusers
  • Under-hood translucent parts

Medical & Pharma

  • Syringe barrels & IV components
  • Pipettes, vials, drip chambers
  • Medical device housings

Consumer & Appliance

  • Translucent knobs & housings
  • Water tanks & filters
  • Appliance components

Packaging

  • Blow-molded bottles & caps
  • Films & thermoformed trays
  • Closures & dispensing parts

Lighting

  • Diffusers & lenses
  • Prismatic covers
  • LED light guides

Custom Solutions

  • Specialty applications
  • Unique material combinations
  • Complex geometries

System Architecture

Precision-engineered components working in harmony for reliable inspection

Imaging Hardware

  • Cameras: 12–45 MP global-shutter; HDR for mixed scenes
  • Optics: Telecentric for metrology; high-NA macro for micro-defects
  • Liquid lens: Rapid autofocus across ribs and varying heights

Lighting Geometry

  • Diffuse transmission: Maps thickness and reveals inclusions
  • Collimated backlight: Crisp edges, holes/slots, micro-chips
  • Spectral options: UV/NIR for specific resins/additives

Motion & Fixturing

  • Encoder-synced conveyors for continuous inspection
  • Rotary/tilt tables for multi-view inspection
  • Soft nests and quick-change tooling

Live Vision AI

  • Recipe-based inspection per resin, color, thickness
  • Thickness-aware background modeling
  • Real-time PASS/FAIL with reason codes

Integration Layer

  • PLC/robot, MES/ERP via OPC-UA, Modbus/TCP
  • Barcode/RFID for genealogy tracking
  • Report exports to BI systems

Digital Quality Certificate

  • Part/serial/job, timestamp, recipe version
  • Annotated defect snapshots and locations
  • Operator & station traceability

Performance & Throughput

Typical system capabilities across different applications

10µm

Surface Defects

Detection of surface sleeks and micro-scratches

20-50µm

Internal Inclusions

Bubbles, gels, and foreign particles (material-dependent)

90ppm

Throughput

Up to 90 parts/min on rotary cells for small/medium parts

Custom Performance Tuning

Actual performance depends on material, thickness, optics, and your acceptance criteria. Intelgic tunes lighting, optics, motion, and AI to your specific targets.

Performance Optimization
Tailored to your requirements

Frequently Asked Questions

Yes. We use calibrated transmission and AI models that compensate for expected thickness gradients, reducing false calls.

Yes. Transmission lighting (diffuse or collimated) reveals sub‑surface inclusions. Spectral tuning can further improve contrast on some resins.

We combine transmission for internals with polarized/coaxial or dark‑field for surface cosmetics, then fuse results.

Yes. We provide stimulus‑controlled tests to map hot‑spots and uniformity under specified LED conditions.

Yes. Line‑scan transmission supports continuous inspection up to 80 m/min, with pinhole and inclusion detection.

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