Plano-Concave Lenses, Unmounted (Fused Silica; Also Suited As Laser Mirror Substrates)
from Qioptiq

Uncoated. Suitable for DUV applications. Substrate for dielectric or metallic coatings. Extreme low scattering losses. High surface quality. Tolerances: Focal length f' : ± 2 %, Image distance s' : ± 2 %. Surface quality: λ/10 for concave surfaces, λ/4 for flat... [See More]

  • Surface Flatness: λ/10
  • Lens Application: Infrared; Visible
  • Lens Form: Plano-Convex
  • Focal Length: -27017 to -8.94
Best Form Spherical BK7A Lens -- Model BFCX-12.7B-024
from Lambda Research Optics, Inc.

Produces 6.8 mm spot size, focal l length taken at 633 nm [See More]

  • Surface Flatness: λ/10
  • Lens Application: Visible
  • Lens Form: Convex-Convex
  • Focal Length: 24.6