Standard, low aberration beam expanding lens for most routine applications; 248nm to 1064nm. Well-suited to a wide range of beam expansion and aberration-balancing tasks in the UV through near-infrared, these fused silica plano-concave lenses reduce aberrations when used at near-infinite conjugate ratio. They are available in a wide range of standard focal lengths and diameters, with optional VIS & NIR broadband or Nd:YAG AR coatings.
Product Code: LUK-UV
Optical Material: Standard Grade Corning 7980 1-D (Fused Silica)
Diameter Tolerance: +0/-0.10mm
Center Thickness Tolerance: ±0.2mm
Chamfer: 0.05 - 0.20mm at 45° nominal
Flat Annulus Width (?): 0.5 +0/-0.25mm
Centration: ≤ 3 arc minutes
Paraxial Focal Length: ƒ±1%
Surface Irregularity: < λ/4 p-v at 633nm per surface before coating
Surface Quality: 40-20 scratch-dig per MIL-PRF-13830b
Clear Aperture (CA): Ø-2?
Design Wavelength: 404.7nm
Anti-reflection Coating: Wavelength user specified