Advanced Aspherical Lenses with Custom Options

• Material Range: Suitable for DUV to IR applications
• Custom Dimensions & Shapes: Diameter from 5 to 200 mm
• Clear Aperture: Central 90% of diameter
• Irregularity: λ/10@632.8 nm
• Surface Quality: 10-5 S/D
• Centration Accuracy: ?3′
• Coating Options: Anti-reflection (AR) coatings available
• High Laser Damage Threshold: Designed for demanding environments

State-of-the-Art CNC Precision Manufacturing

• Aspherical and acylindrical lenses are precision-polished using advanced CNC processes.
• Iteratively ground and polished with software-supported computer-controlled centers to ensure minimal surface deviations and exceptional quality.

Custom Lens Shapes Available:

• Includes aspherical cylindrical, hyperbolic, axicon, and free-form lenses.

Rigorous Quality Testing with Advanced Metrology:

• Taylor Hobson Form Talysurf PGI Profilometer: Measures surface grinding irregularities.
• Zygo Interferometer & CGH: Ensures wavefront error correction through zero-position interferometry.
• LuphoScan 260 Non-contact 3D Optical Surface Profilometer: Measures ultra-precision surface forms during polishing.

CASTECH ensures every aspheric lens maintains unparalleled optical performance, optimized for applications demanding precision, versatility, and reliability.