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 Code | RMSi [nm] | Wavefront RMS [nm] | Diameter [mm] | EFL [mm] | NA | f/d | WD [mm] | λDesign [nm] | Material | Scratch-Dig | Coating | Price uncoated | Price coated | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ALL12-25-P-U | 500 | 255 | 12.5 | 25 | 0.25 | 2.0 | 22.4 | 780 | N-BK7 | 60-40 | A / B / C | 194.00 | 222.00 | Quote |
| ALL25-50-P-U | 500 | 255 | 25 | 50 | 0.23 | 2.0 | 46.0 | 780 | N-BK7 | 60-40 | A / B / C | 249.00 | 286.00 | Quote |
| ALL50-100-P-U | 500 | 255 | 50 | 100 | 0.24 | 2.0 | 93.4 | 780 | N-BK7 | 60-40 | A / B / C | 445.00 | 588.00 | Quote |
| ALL75-60-P-U | 500 | 255 | 75 | 60 | 0.62 | 0.8 | 36.5 | 780 | N-BK7 | 60-40 | A / B / C | 759.00 | 980.00 | Quote |
| ALL75-150-P-U | 500 | 255 | 75 | 150 | 0.23 | 2.0 | 140.1 | 780 | N-BK7 | 60-40 | A / B / C | 759.00 | 980.00 | Quote |
| ALL100-100-P-U | 500 | 255 | 100 | 100 | 0.48 | 1.0 | 76.2 | 780 | N-BK7 | 60-40 | A / B / C | 1088.00 | 1485.00 | Quote |
| ALL100-200-P-U | 500 | 255 | 100 | 200 | 0.23 | 2.0 | 187.4 | 780 | N-BK7 | 60-40 | A / B / C | 1088.00 | 1485.00 | Quote |
| ALL12-25-U-U | 100 | 51 | 12.5 | 25 | 0.25 | 2.0 | 22.4 | 780 | N-BK7 | 60-40 | A / B / C | 388.00 | 442.00 | Quote |
| ALL25-50-U-U | 100 | 51 | 25 | 50 | 0.23 | 2.0 | 46.0 | 780 | N-BK7 | 60-40 | A / B / C | 500.00 | 572.00 | Quote |
| ALL50-100-U-U | 100 | 51 | 50 | 100 | 0.24 | 2.0 | 93.4 | 780 | N-BK7 | 60-40 | A / B / C | 890.00 | 1175.00 | Quote |
Mounted Optics
RMSi [nm]Diameter [mm]EFL [mm]NAλDesign [nm]MaterialCoating
| Product Code | RMSi [nm] | Wavefront RMS [nm] | Diameter [mm] | EFL [mm] | NA | f/d | WD [mm] | λDesign [nm] | Material | Scratch-Dig | Coating | Price uncoated | Price coated | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ALM12-25-U-U | 100 | 51 | 12.5 | 25 | 0.25 | 2.0 | 22.4 | 780 | N-BK7 | 60-40 | A / B / C | 494.00 | 543.00 | Quote |
| ALM25-50-U-U | 100 | 51 | 25 | 50 | 0.23 | 2.0 | 46.0 | 780 | N-BK7 | 60-40 | A / B / C | 606.00 | 679.00 | Quote |
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
Speak to our team
Always the latest news from asphericon