Freeform Optics Processing
Ultraopto - Freeform Optics Processing Capabilities
Freeform optics is a high-end core product of Ultraopto, featuring irregular curved surfaces that break through the limitations of traditional spherical and aspherical optics. Our freeform optical components are widely used in high-precision fields such as advanced laser systems, aerospace imaging, medical equipment, and automotive optics. We have built a professional freeform optics processing system, integrating advanced processing equipment, strict precision control and full-process detection, to provide customers with high-precision, customized freeform optical processing solutions. The detailed processing capabilities, adopted equipment and achievable precision are shown in the following table:
Processing Process | Adopted Professional Equipment | Achievable Precision Index | Applicable Products |
|---|---|---|---|
Substrate Precision Cutting & Trimming | 5-axis CNC precision wire cutting machine, diamond precision trimming machine | Dimensional tolerance: ±0.003mm; Cutting surface roughness: Ra≤0.08μm; Edge chipping: ≤0.02mm; Profile deviation: ≤0.005mm | Freeform optics substrates (fused silica, sapphire, calcium fluoride, high-purity optical glass, etc.) |
Freeform Rough & Fine Grinding | 6-axis CNC ultra-precision freeform grinding machine, adaptive profile grinding system | Freeform surface profile error: PV≤3λ (@633nm); Curvature fluctuation: ±0.0008mm; Surface roughness: Ra≤0.3μm; Local profile error: ≤0.002mm | Freeform mirror blanks, freeform lens blanks, freeform optical component blanks |
Ultra-precision Freeform Polishing | Magnetorheological finishing (MRF) system, ion beam figuring (IBF) machine, adaptive CNC polishing machine | Surface shape accuracy: PV≤λ/15~λ/25 (@633nm); Surface roughness: Ra≤0.2nm (ultra-smooth surface); Local slope error: ≤0.002λ/cm; Profile correction accuracy: ±0.0005mm | High-precision freeform mirrors, freeform lenses, freeform prisms, custom freeform optical components |
Freeform Surface Alignment & Edging | 6-axis CNC freeform centering edging machine, 3D optical alignment instrument, dynamic optical axis detection system | Concentricity error: ≤0.0003mm; Radial runout: ≤0.0008mm; Edge dimensional tolerance: ±0.002mm; Optical axis deviation: ≤0.001° | Aligned freeform lenses, freeform reflectors, integrated freeform optical assemblies |
Ultra-purification Cleaning & Drying | 100-level clean room multi-tank ultra-high purity ultrasonic cleaning machine, low-temperature vacuum drying oven, plasma cleaning equipment | Surface particle grade: Class 50 (≤0.2μm particles, no visible contaminants); No chemical residue; Surface hydrophobicity: Contact angle ≥110° (optional) | All finished freeform optical components |
Freeform Optical Coating | High-vacuum ion beam sputtering (IBS) coating machine, mask-aligned electron beam evaporation coating machine | Coating thickness tolerance: ±0.3nm; Reflectivity: Up to 99.999% (specific bands); Transmittance: ≥99.8% (AR coating, UV/visible/IR bands); Coating uniformity: ≥98.5% | Coated freeform mirrors, freeform lenses, freeform optical components for high-end optical systems |
Full-process Precision Detection | Zygo GPI Pro interferometer, 3D non-contact optical profiler, atomic force microscope (AFM), freeform surface measurement system | Freeform surface profile detection: λ/25 (@633nm) resolution; Roughness detection: 0.001nm resolution; Optical performance detection: ±0.03% precision; Profile error detection: ≤0.0003mm | All freeform optics semi-finished/finished products |
Core Advantages of Freeform Optics Processing
Advanced Processing Technology:
Master core technologies such as MRF and IBF, which can realize high-precision forming of complex freeform surfaces, solve the processing difficulties of irregular curved surfaces, and achieve ultra-smooth surface quality.
High-precision Control:
Equipped with 6-axis CNC processing equipment and high-end detection instruments, the whole process is monitored online, ensuring that the profile accuracy, surface roughness and other indicators meet the high-standard requirements of customers.
Full Customization Capability:
Support customized processing of freeform optics with different complex profiles, apertures and materials, and can fully match the personalized needs of customers according to technical drawings and application scenarios.
Multi-material Adaptation:
Realize high-precision processing of various special optical materials such as 193nm grade fused silica, high-purity calcium fluoride and sapphire, adapting to the application needs of UV, visible and infrared bands.
Clean Production Environment:
The key processing and cleaning processes are completed in a 100-level clean room, effectively avoiding surface contamination and ensuring the stability and reliability of freeform optical components in high-end applications.
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