High-Fidelity Polymer Replication

The Complete Polymer Chain: End-to-End Control

Many molding shops only handle the replication step, forcing you to manage unaligned toolmakers and accept accumulated tolerance errors. We do things differently. By mastering the entire vertical value chain under one roof, we provide an uninterrupted engineering loop:

• In-House Master & Tool Production: After internal design and CNC milling, we diamond machine your mold inserts in-house using proven ultra-precision diamond machining and our extended know-how to guarantee sub-micron form accuracy and 1nm Ra roughness right from the start.
• Advanced Replication: Execution via injection-compression or HiFi Optics® isothermal compression molding depending on geometrical complexity.
• Post-Processing & Surface Treatment: Precision diamond saw dicing, specialized milling, cleanroom packaging, and in-house plasma surface treatment.
• Rigorous Metrology Validation: 100% verification of shape replication using 3D confocal microscopy and tactile profilometry, paired with birefringence mapping to guarantee optical efficiency.

Our Replication Solutions

We bridge the gap between complex sub-micron design and high-yield physical reality:

Precision Injection & Injection-Compression Molding
Optimized for predictable, highly repeatable replication of precision components. We specialize in low-to-medium volume batch production (up to several thousand units) where sub-micron control is paramount. By controlling the toolmaking and the molding dynamics, we minimize the need for compensation loops and deliver your custom part within the shortest timeframes.

Move Beyond Lab Prototypes. Secure Your Specialized Production.

Don't compromise your optical design to fit the limitations of a commodity molding shop. Contact our engineering team to build a complete, single-source replication path tailored to your exact geometry challenges.

Our Technology Flagship: Proprietary HiFi Optics® Molding

As an advanced isothermal molding process developed entirely by Wielandts UPMT, HiFi Optics® brings complex lenses to their final shape with outstanding accuracy. While conventional molding systems introduce high-shear forces that cause devastating thermal drift, weld lines, and internal stress, our controlled thermodynamic cycle renders alternative replication approaches obsolete for stress-free, high-fidelity geometries.

• Ultra-Low Birefringence: We consistently achieve residual retardation values down to 10nm/cm, preserving polarization across clear apertures.
• Extreme Aspect Ratios & Thin Substrates: Safely fill complex mold cavities to achieve aspect ratios > 5 and an unprecedented minimum thickness <200µm without premature freezing or short-shots.
• Steep Surface Slopes: Replicate complex profiles with surface slopes up to 75°.

Primary Applications: Virtual reality (VR) pancake lenses, large or thin augmented reality (AR) lightguides, automotive lenses, projection optics, ...