Optical Fabrication & Polishing
Altechna's advanced polishing capabilities deliver high-precision surfaces across a wide range of materials, geometries, and specifications, meeting demanding performance and quality requirements.
Fabrication capabilities
Substrate customization
Support for diverse materials: optical glasses, fused silica, ULE, optical crystals (CaF2, MgF2), ceramics (Spinel, Zerodur)
Flat Plano optics
Specialization in producing extremely flat, large-area optics using reference molds up to L/100 over 6’’.
Crystal Specific techniques
Proprietary processes for CaF2: continuous polishing for flats, spindle polishing for radii.
High-Volume Grinding & Polishing
Large double-sided grinders and polishers to reduce cost/time for volume production.
Proactive process planning
Proactive process planning that responds to material-specific characteristics, ensuring optimal surface quality and throughput.
Equipment & Techniques
Continuous polishers & grinders
24″, 36″, 48″, and 64″ polishers
Specialized CaF₂ Polishing
Dedicated 24″ continuous CaF₂ polisher
Double-Sided, Cylinder, & Spindle Tools Double-sided grinders/polishers, drum/XY cylinder polishers, spindle polishers
Double-sided grinders/polishers, drum/XY cylinder polishers, spindle polishers
Additional Fabrication Machinery
Mechanical mills, Harig slicer, CNC edger, Sidai & OptoTech curve generators, beveling equipment
