Transparent Glass Inspection Automation

Zero Defects Glass manufacturing

Book a call
Industrial
Automotive
Medical
Architectural

Why Transparent Glass is Hard to Inspect

Transparent materials introduce unique inspection challenges that conventional systems often miss.

Inspection Challenges

Transparency Issues

Defects can "disappear" as light passes through unless shaped correctly.

Glare & Reflections

Specular surfaces hide fine scratches and sleeks from detection.

Low Contrast

Minimal difference between defect and background reduces detectability.

Refraction Issues

Double images distort edges and surface features during inspection.

Our Solutions

Precision Lighting

Application-specific lighting geometry matched to each part type.

Polarization Control

Cross-polarization to suppress glare and reveal faint scratches.

Live Vision AI

Adaptive thresholds and super-resolution for transparent surfaces.

Microscopic Capability

Detect <10µm scratches and pits with specialized optics.

Tailored Lighting Solutions

Flat Glass

Low-angle oblique lighting + dark-field elevates grazing scratches while suppressing glare.

Small Parts

Telecentric backlighting creates crisp silhouettes for edge chips and inclusions.

Bottles/Vials

Inner-wall dark-field, mouth/neck coaxial, with view unwrapping for cylindrical bodies.

Advanced Inspection Technology

Our turnkey solution combines precision hardware with intelligent software for comprehensive defect detection.

System Architecture

Imaging Hardware

High-resolution area-scan (12–65 MP) and line-scan (2k–8k) cameras with telecentric lenses and liquid lens autofocus.

Lighting Geometry

Customized per part: low-angle oblique, telecentric backlights, dome/coaxial, polarization kits.

Motion Systems

Encoder-synced conveyors, rotary stages for 360° scans, multi-axis robotic rails for large panes.

Glass inspection technology

Live Vision AI Software

  • Recipe-based inspection per SKU with defect libraries

  • Multi-view defect fusion and 3D unwrapping

  • Measurement tools for edge radius, thickness, and angles

  • OCR/OCV for batch codes and laser-etched marks

  • Real-time pass/fail with explainable defect snapshots

Digital Quality Certificate

For every PASS part, the system issues a traceable Digital Quality Certificate (DQC) with:

  • Per-part ID, timestamp, and recipe version
  • Defect list with type, location, and size
  • Annotated images and pass/fail thresholds
  • Warranty validation for customer assurance

Defects We Detect

Surface Defects

  • Hairline scratches & sleeks
  • Scuffs, digs, pits
  • Stains, haze, orange peel
  • Coating pinholes & delamination

Sub-Surface Defects

  • Bubbles & seeds
  • Stones & blisters
  • Cords & striae (optical glass)
  • Embedded dust particles

Edge & Geometry

  • Chips & micro-cracks
  • Bevel defects & shelling
  • Thickness & wedge (lenses)
  • Bow/warp & dimension tolerances

Industry Applications

Our systems are designed for diverse transparent glass products across multiple industries.

Flat & Cover Glass

Smartphone/tablet cover glass, architectural lites, tempered glass, and appliance panels.

Scratches Chips Coating

Automotive Glass

Windshields, sidelites, backlites with frit & logo inspection, edge chips/cracks detection.

Micro-cracks Edge defects Frit quality

Optics & Lenses

Plano/spherical lenses, camera optics, AR/VR components, glass wafers with sub-micron defects.

Inclusions Wedge Surface finish

Containers

Bottles, vials, ampoules, syringes with mouth/neck, body, and base inspection capabilities.

Seeds Cracks OCR

Labware

Slides, cuvettes, pipettes, test tubes with cleanliness and defect screening.

Contamination Scratches Dimensions

Specialty Glass

Display glass, optical filters, laser components with stringent quality requirements.

Coating Flatness Striae

System Performance

High-speed inspection with microscopic defect detection capabilities.

Detection Capabilities

Microscopic Sensitivity

Scratches/pits to <10 µm (flat glass & lenses), bubbles ≥30–50 µm; edge chips ≥20 µm length.

High Throughput

Up to 80 m/min on line-scan sheet inspection; 240–600 parts/min on vial/bottle turrets.

Sub-Pixel Accuracy

Telecentric optics enable sub-pixel metrology with automatic calibration routines.

Dashboard & Analytics

Yield Rate 98.7%
False Positives
0.3%
Throughput
450 ppm
Top Defect: Micro-scratches 42%

Deployment Options

On-Premises

Industrial PC with local server for real-time control and data residency.

Low latency
Data sovereignty

Cloud

Centralized Digital Quality Certificates and cross-plant benchmarking.

Remote monitoring
Fleet management

Mobile

Operator app for spot checks and re-inspection with guided capture.

Flexible workflows
Real-time alerts

Frequently Asked Questions

Answers to common questions about our transparent glass inspection systems.

How do you handle transparency so defects don't "vanish"?

By designing lighting geometry to the part: low-angle oblique for flat glass and backlighting for small transparent parts like lenses, then augmenting with coaxial/dark-field and polarization.

Can the system see both surface and internal bubbles?

Yes. Dark-field and backlight reveal surface sleeks and sub-surface inclusions like bubbles/seeds. For thicker parts, multi-angle lighting improves detectability.

What about curved or embossed bottles?

We use rotary inspection and view-unwrapping to flatten cylindrical images for consistent detection, plus targeted lighting to highlight embossing defects.

Can it verify printed/laser marks?

Yes. OCR/OCV verifies lot, batch, and expiry codes, and checks presence/quality of brand and regulatory marks.

What documentation do I get?

Per-part DQC, daily/shift reports, defect Pareto, and audit logs with user actions. FDA/ISO 13485 documentation available for medical applications.

Do you support both cloud and on-prem?

Yes. Choose based on data governance and latency needs; hybrid is also supported with local real-time control and cloud analytics.

Call to action

Ready to eliminate returns from hidden chips and micro‑scratches? Schedule a feasibility study with Intelgic to benchmark your parts and line speeds.

Say hello to Intelgic

contact intelgic
Book a call

©2025 Intelgic Inc. All Rights Reserved.