Mounted N-BK7 Symmetric-Concave Lenses, Uncoated
Our LINOS® mounted symmetric-concave lenses are manufactured from high-quality N-BK7 and are offered in various focal lengths and diameters to meet diverse optical requirements. They are well-suited for beam expansion, controlled divergence of collimated light, and applications requiring low spherical aberration and consistent performance. Each lens is manufactured to strict tolerances with N-BK7 glass from trusted suppliers to ensure reliable optical quality. Lenses are available as either mounted in a black-anodized, engraved aluminum housing or unmounted for flexible system integration.
Our mounted symmetric-concave lenses are crafted from high-quality N-BK7 glass and integrate seamlessly into LINOS Microbench and Nanobench systems. Tight focal-length tolerances provide consistent integration and reliable optical performance.
These lenses feature two equal radii of curvature, ensuring precise optical performance in applications that require controlled beam divergence. The uncoated N-BK7 singlets perform well across a broad wavelength range.
ZEMAX files are available to simplify optical design and simulation. For customized specifications or higher-volume production, contact us for a quotation tailored to your technical requirements.
Note: f = focal length (object side), f' = focal length (image side) , s = object distance, s' = back focal length, Ø = lens diameter, dm = center thickness, dr = edge thickness, h = primary vertex, h' = sagittal height secondary vertex, F, F' = focal points, H, H' = principal points; Tolerances: focal length f: ±2% image distance s': ±2%
Note: Dmech: outer mount, DCA: clear aperture, Doptical: optical size, RR: retaining ring
| Product | Biconcave lens; N-BK 7; D=10; F=-10; mounted | Biconcave lens; N-BK 7; D=12.7; F=-50; mounted | Biconcave lens; N-BK 7; D=22.4; F=-20; mounted | Biconcave lens; N-BK 7; D=22.4; F=-50; mounted | Biconcave lens; N-BK 7; D=22.4; F=-40; mounted | Biconcave lens; N-BK 7; D=22.4; F=-150; mounted | Biconcave lens; N-BK 7; D=12.7; F=-20; mounted | Biconcave lens; N-BK 7; D=12.7; F=-100; mounted | Biconcave lens; N-BK 7; D=22.4; F=-30; mounted | Biconcave lens; N-BK 7; D=22.4; F=-100; mounted |
| Optic Size | Ø 10.0 mm | Ø 12.7 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 12.7 mm | Ø 12.7 mm | Ø 22.4 mm | Ø 22.4 mm |
| Focal Length (+/-) | -10.0 mm | -50.0 mm | -20.0 mm | -50.0 mm | -40.0 mm | -150.0 mm | -20.0 mm | -100.0 mm | -30.0 mm | -100.0 mm |
| Mount | Nanobench | Nanobench | Microbench | Microbench | Microbench | Microbench | Nanobench | Nanobench | Microbench | Microbench |
| Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted |
| Optic Substrate | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 |
| Optic Center Thickness | 1.0 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm |
| Length | 8.0 mm | 8.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 8.0 mm | 8.0 mm | 10.0 mm | 10.0 mm |
| Radius of Curvature 1 | -10.669 mm | -52.33 mm | -20.833 mm | -52.33 mm | -41.867 mm | -156.22 mm | -20.983 mm | -104.41 mm | -31.396 mm | -104.41 mm |
| Radius of Curvature 2 | 10.669 mm | 52.33 mm | 20.833 mm | 52.33 mm | 41.867 mm | 156.22 mm | 20.983 mm | 104.41 mm | 31.396 mm | 104.41 mm |
| Tolerance thickness | ± 0.15 mm | ± 0.1 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.1 mm | ± 0.1 mm | ± 0.2 mm | ± 0.2 mm |
| Optic Edge Thickness | 3.5 mm | 2.3 mm | 7.2 mm | 3.9 mm | 4.5 mm | 2.3 mm | 3.5 mm | 1.9 mm | 5.6 mm | 2.7 mm |
| Optic Centering Accuracy (min,sec) | 10.0 ' | 10.0 ' | 10.0 ' | 10.0 ' | 10.0 ' | 10.0 ' | 10.0 ' | 10.0 ' | 10.0 ' | 10.0 ' |
| Tolerance of optic size | - 0.09 mm | - 0.12 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.12 mm | - 0.12 mm | - 0.13 mm | - 0.13 mm |
| Height | 1.24 mm | 0.39 mm | 3.27 mm | 1.21 mm | 1.53 mm | 0.4 mm | 0.98 mm | 0.19 mm | 2.07 mm | 0.6 mm |
| f' at X nm |
-10.12 mm -10.19 mm -10.36 mm |
-50.2 mm -50.55 mm -51.4 mm |
-19.84 mm -19.98 mm -20.31 mm |
-50.2 mm -50.55 mm -51.39 mm |
-40.11 mm -40.39 mm -41.07 mm |
-150.34 mm -151.4 mm -153.91 mm |
-19.98 mm -20.12 mm -20.46 mm |
-100.4 mm -101.1 mm -102.8 mm |
-30.02 mm -30.23 mm -30.73 mm |
-100.4 mm -101.1 mm -102.78 mm |
| Outer Mount Diameter | 16.0 mm | 16.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 16.0 mm | 16.0 mm | 25.0 mm | 25.0 mm |
| Clear aperture | 9.0 mm | 11.5 mm | 21.4 mm | 21.4 mm | 21.4 mm | 21.4 mm | 11.5 mm | 11.5 mm | 21.4 mm | 21.4 mm |
| Coating Specification | Selectable | Selectable | Selectable | Selectable | Selectable | Selectable | Selectable | Selectable | Selectable | Selectable |
| Part Number | G052401000 | G052403000 | G063058000 | G063061000 | G063060000 | G063063000 | G052402000 | G052404000 | G063059000 | G063062000 |
Tight manufacturing tolerances for excellent performance and precision mounting
Uncoated, suitable for broad wavelength range; for details, refer to the typical transmission curve of N-BK7
Mounted lenses can integrate seamlessly into LINOS Microbench and Nanobench systems
Mount made of black-anodized aluminum with laser engraving
ZEMAX files available, enabling easy system design and simulation
| Product | Biconcave lens; N-BK 7; D=10; F=-10; mounted | Biconcave lens; N-BK 7; D=12.7; F=-50; mounted | Biconcave lens; N-BK 7; D=22.4; F=-20; mounted | Biconcave lens; N-BK 7; D=22.4; F=-50; mounted | Biconcave lens; N-BK 7; D=22.4; F=-40; mounted | Biconcave lens; N-BK 7; D=22.4; F=-150; mounted | Biconcave lens; N-BK 7; D=12.7; F=-20; mounted | Biconcave lens; N-BK 7; D=12.7; F=-100; mounted | Biconcave lens; N-BK 7; D=22.4; F=-30; mounted | Biconcave lens; N-BK 7; D=22.4; F=-100; mounted |
| Optic Size | Ø 10.0 mm | Ø 12.7 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 12.7 mm | Ø 12.7 mm | Ø 22.4 mm | Ø 22.4 mm |
| Focal Length (+/-) | -10.0 mm | -50.0 mm | -20.0 mm | -50.0 mm | -40.0 mm | -150.0 mm | -20.0 mm | -100.0 mm | -30.0 mm | -100.0 mm |
| Mount | Nanobench | Nanobench | Microbench | Microbench | Microbench | Microbench | Nanobench | Nanobench | Microbench | Microbench |
| Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted |
| Optic Substrate | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 | N-BK7 |
| Optic Center Thickness | 1.0 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm |
| Length | 8.0 mm | 8.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 8.0 mm | 8.0 mm | 10.0 mm | 10.0 mm |
| Radius of Curvature 1 | -10.669 mm | -52.33 mm | -20.833 mm | -52.33 mm | -41.867 mm | -156.22 mm | -20.983 mm | -104.41 mm | -31.396 mm | -104.41 mm |
| Radius of Curvature 2 | 10.669 mm | 52.33 mm | 20.833 mm | 52.33 mm | 41.867 mm | 156.22 mm | 20.983 mm | 104.41 mm | 31.396 mm | 104.41 mm |
| Tolerance thickness | ± 0.15 mm | ± 0.1 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.1 mm | ± 0.1 mm | ± 0.2 mm | ± 0.2 mm |
| Optic Edge Thickness | 3.5 mm | 2.3 mm | 7.2 mm | 3.9 mm | 4.5 mm | 2.3 mm | 3.5 mm | 1.9 mm | 5.6 mm | 2.7 mm |
| Optic Centering Accuracy (min,sec) | 10.0 ' | 10.0 ' | 10.0 ' | 10.0 ' | 10.0 ' | 10.0 ' | 10.0 ' | 10.0 ' | 10.0 ' | 10.0 ' |
| Tolerance of optic size | - 0.09 mm | - 0.12 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.12 mm | - 0.12 mm | - 0.13 mm | - 0.13 mm |
| Height | 1.24 mm | 0.39 mm | 3.27 mm | 1.21 mm | 1.53 mm | 0.4 mm | 0.98 mm | 0.19 mm | 2.07 mm | 0.6 mm |
| f' at X nm |
-10.12 mm -10.19 mm -10.36 mm |
-50.2 mm -50.55 mm -51.4 mm |
-19.84 mm -19.98 mm -20.31 mm |
-50.2 mm -50.55 mm -51.39 mm |
-40.11 mm -40.39 mm -41.07 mm |
-150.34 mm -151.4 mm -153.91 mm |
-19.98 mm -20.12 mm -20.46 mm |
-100.4 mm -101.1 mm -102.8 mm |
-30.02 mm -30.23 mm -30.73 mm |
-100.4 mm -101.1 mm -102.78 mm |
| Outer Mount Diameter | 16.0 mm | 16.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 16.0 mm | 16.0 mm | 25.0 mm | 25.0 mm |
| Clear aperture | 9.0 mm | 11.5 mm | 21.4 mm | 21.4 mm | 21.4 mm | 21.4 mm | 11.5 mm | 11.5 mm | 21.4 mm | 21.4 mm |
| Coating Specification | Selectable | Selectable | Selectable | Selectable | Selectable | Selectable | Selectable | Selectable | Selectable | Selectable |
| Part Number | G052401000 | G052403000 | G063058000 | G063061000 | G063060000 | G063063000 | G052402000 | G052404000 | G063059000 | G063062000 |
Tight manufacturing tolerances for excellent performance and precision mounting
Uncoated, suitable for broad wavelength range; for details, refer to the typical transmission curve of N-BK7
Mounted lenses can integrate seamlessly into LINOS Microbench and Nanobench systems
Mount made of black-anodized aluminum with laser engraving
ZEMAX files available, enabling easy system design and simulation