Available in a focal length-diameter-ratio (f/d) of 2.0 and ideally suited for light collection and laser applications: asphericon's Low-NA aspheres. Discover our aspherical lenses made of N-BK7 with the most precise surfaces and delivery directly from stock. Choose between two quality levels and three different coatings. Some diameters are also available with high-precision mountings.

= Outstanding surface form deviation: Precision quality with RMSi ≤ 0.5 µm and wavefront RMS <255 nm; Ultra quality with RMSi ≤ 0.1 µm and wavefront RMS <51 nm

= Long focal length (f/d 2.0)

= Available with 3 standard coatings/customized coatings on request

= Laser induced damage threshold: 12 J/cm², 100 Hz, 6 ns, 532 nm

= Off-the-shelf delivery

= RoHS compliance