TOPAZ 3D – Curved Substrate Patterning

The TOPAZ 3D is our market-leading solution for laser patterning of curved glass in the automotive industry.

Specifically engineered for coated and heated windshields, the system delivers high-speed, high-precision patterning of complex 3D geometries. Supporting over 500,000 windshields per year, it achieves cycle times below 30 seconds – making it ideal for inline OEM production.

Whether you need laser structuring of curved glass, laser processing of coated windshields, or fine-feature RF filter patterning on automotive glass, the TOPAZ 3D sets new standards in performance and flexibility.

The image shows a cut-out of a TOPAZ 3D, a laser system for ablation of thin layers on curved glass — TOPAZ 3D – System for laser ablation of thin layers on curved glass

Designed for Coated and Heated Windshields

The image shows the laser ablation process on a windshield in the TOPAZ 3D system. The windshield was precisely positioned beforehand using a vacuum gripper. — Ablation process after precise positioning of the windshield using a vacuum gripper

Whether for series production or R&D, the TOPAZ 3D delivers consistent and scalable results.

It Supports a Wide Range of Applications:

Laser ablation for HUD glass, ensuring optical clarity for head-up displays

Glass-side laser ablation, maintaining optical quality without rear-surface damage

Windshield laser patterning for camera and sensor zones

Seamless integration of RF filters and transparent heater structures

Applications in Automotive Glass Laser Processing

The TOPAZ 3D is the benchmark in automotive glass laser processing, capable of:

Laser ablation on bent glass with perfect surface tracking
Laser structuring of curved glass for sensor and camera windows
Windshield laser patterning for integrated antenna and heater structures
Laser processing of coated windshields without damaging functional layers
Laser ablation for HUD glass with ultra-high optical quality
RF filter patterning on automotive glass with invisible line resolution
Display and cockpit glass with complex 3D curvatures

The photo shows the windshield of a car with integrated sensors. — Laser Patterning of Windshields for camera and sensor zones, HUD Zone and RF Filters

Technology Advantage – True 3D Patterning on Bent Glass

Unlike traditional step-and-repeat methods, our TOPAZ 3D uses stationary laser heads and dynamic beam deflection across all axes. This allows full-surface 3D glass laser ablation in one continuous motion – enabling:

Perfect pattern accuracy across large, curved areas
Shorter cycle times
No mechanical repositioning or staging
Homogeneous pattern quality even on sharply curved surfaces

The image shows the laser ablation process on a curved windshield in the TOPAZ 3D system. Fiducial detection was carried out beforehand. — Laser process after fiducial detection on curved windshield in vacuum gripper

Technical Highlights

Glass types: laminated, coated, heated, tinted

Patterning resolution: fine structures for RF and HUD integration

Throughput: >500,000 windshields/year

Alignment: camera-based fiducial referencing for automated positioning

Applications: automotive OEMs, tier-1 glass suppliers

Technical Details:

Feature	Advantage
Remote 3D scanning	Ultra-short cycle times
Large scan field (1.2 x 1.2 m²)	Covers full windshield processing areas in a single scan
Optional dual-laser configuration	Extended scan field up to 1.2 x 1.6 m² and further cycle time reduction
Dynamic 3D laser focus control	Accurate patterning on curved, bent surfaces
High-resolution patterning	Fine lines with variable width – invisible to the human eye
Camera-based fiducial referencing	High alignment accuracy despite shifting placement
OEM-ready design	Engineered for 24/7 high-volume automotive environments