25.4mm Square x -75 FL, 355nm AR Coated, Laser Grade PCV Cylinder Lens

Product Details <0.25% AR Coated for Nd:YAG Harmonics <3 Arcminute Wedge Tolerance Fused Silica Substrate TECHSPEC Laser Grade Laser Line Cylinder Lenses are manufactured with tightly controlled geometric wedge tolerances to facilitate drop in compatibility. These laser line cylinder lenses feature laser grade optical specifications including 20-10 surface quality and λ/4 surface irregularity on both plano and cylindrical surfaces. TECHSPEC Laser Grade Laser Line Cylinder Lenses are available in 266nm, 355nm, 532nm, and 1064nm AR coated versions, with specified laser induced damage thresholds. These fused silica lenses are ideal for demanding laser machining and medical applications. Specifications General Type: Cylinder Lens, Plano-Concave Physical & Mechanical Properties Dimensions (mm): 25.4 x 25.4 Dimensional Tolerance (mm): +0.0/-0.025 Center Thickness CT (mm): 3.00 ±0.1 Edge Thickness ET (mm): 5.31 Clear Aperture CA (mm): 22.86 x 22.86 Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): -75.00 Focal Length Specification Wavelength (nm): 587.6 Back Focal Length BFL (mm): -77.06 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Fused Silica (Corning 7980) f/#: 3 Coating: Laser V-Coat (355nm) Coating Specification: R abs <0.25% @ 355nm Design Wavelength DWL (nm): 355 Surface Quality: 20-10 Power (P-V) @ 632.8nm: 1.5λ Irregularity (P-V) @ 632.8nm: λ/4 Radius R 1 (mm): 34.39 Numerical Aperture NA: 0.17 Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification. 7.5 J/cm 2 @ 355nm, 20ns, 20Hz Axial Twist (arcmin): <3 Plano Axis Wedge (arcmin): <3 Power Axis Wedge (arcmin): <3 Regulatory Compliance RoHS 2015: Compliant × Reach 209: Compliant × Certificate of Conformance: View ×