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Low-NA Aspheres

Product configurator

a|Low-NA Aspheres

Our N-BK7 aspheres are available with a focal length-diameter-ratio (f/d) of 2.0 and are particularly suitable for laser applications. Some diameters of the a|Low-NAs are also available with high-precision optical mounts.

a|Low-NA Aspheres at a glance:

  • Outstanding surface form deviation up to RMSi ≤ 0.1 µm
  • 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 (For higher laser power applications please request a V-Coating. Contact us for an individual offer.)
  • RoHS compliance
  • Off-the-shelf delivery for short lead times

Unmounted Optics

RMSi [nm]Diameter [mm]EFL [mm]NAλDesign [nm]MaterialCoating
Product CodeRMSi [nm]Wavefront RMS [nm]Diameter [mm]EFL [mm]NAf/dWD [mm]λDesign [nm]MaterialScratch-DigCoatingPrice uncoatedPrice coated
ALL12-25-P-U50025512.5250.252.022.4780N-BK760-40A / B / C188.00215.00Citace
ALL25-50-P-U50025525500.232.046.0780N-BK760-40A / B / C242.00277.00Citace
ALL50-100-P-U500255501000.242.093.4780N-BK760-40A / B / C432.00570.00Citace
ALL75-60-P-U50025575600.620.836.5780N-BK760-40A / B / C737.00952.00Citace
ALL75-150-P-U500255751500.232.0140.1780N-BK760-40A / B / C737.00952.00Citace
ALL100-100-P-U5002551001000.481.076.2780N-BK760-40A / B / C1056.001443.00Citace
ALL100-200-P-U5002551002000.232.0187.4780N-BK760-40A / B / C1056.001443.00Citace
ALL12-25-U-U1005112.5250.252.022.4780N-BK760-40A / B / C376.00429.00Citace
ALL25-50-U-U1005125500.232.046.0780N-BK760-40A / B / C485.00556.00Citace
ALL50-100-U-U10051501000.242.093.4780N-BK760-40A / B / C864.001141.00Citace
Prices are valid per piece and in USD. Sales only to commercial customers. All prices are exclusive of VAT.

Mounted Optics

RMSi [nm]Diameter [mm]EFL [mm]NAλDesign [nm]MaterialCoating
Product CodeRMSi [nm]Wavefront RMS [nm]Diameter [mm]EFL [mm]NAf/dWD [mm]λDesign [nm]MaterialScratch-DigCoatingPrice uncoatedPrice coated
ALM12-25-U-U1005112.5250.252.022.4780N-BK760-40A / B / C479.00528.00Citace
ALM25-50-U-U1005125500.232.046.0780N-BK760-40A / B / C588.00659.00Citace
Prices are valid per piece and in USD. Sales only to commercial customers. All prices are exclusive of VAT.

Coating options*

AR-Coatings
A: RMAX <1.0%, RAVG ≤0.4%, 400-600 nm, AOI=0°
B: RMAX <1.0%, RAVG ≤0.4%, 600-1050 nm, AOI=0°
C: RMAX <1.0%, RAVG ≤0.4%, 1000-1600 nm, AOI=0°
* Custom coatings available upon request.

Data sheets & downloads

📎 StockOptics Catalog Europe
📎 StockOptics Catalog North America
📎 Data sheet Low-NA Aspheres
📎 Design-Files Aspheres
📎 Coating curves Aspheres


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