Symmetric-Concave Singlet Lenses

Mounted N-BK7 Symmetric-Concave Lenses, ARB2-VIS

The LINOS® series of mounted symmetric-concave lenses from Excelitas is manufactured from high-quality N-BK7 glass with a VIS coating and is offered in a range of focal lengths and diameters to accommodate a broad range of optical applications. These lenses are suitable for beam expansion, controlled divergence of collimated light, and configurations that require minimal spherical aberration and balanced optical performance. Each lens is fabricated to stringent tolerances to ensure consistent optical quality and is available either mounted in a black-anodized, engraved aluminum housing or unmounted for flexible system integration.

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Our mounted symmetric-concave lenses, crafted from high-quality N-BK7 glass, integrate seamlessly into LINOS Microbench and Nanobench systems. The narrow focal-length tolerances of our lenses ensure consistent system integration and reliable optical behavior.

These lenses feature two equal radii of curvature, providing precise optical performance for applications requiring controlled beam divergence. The ARB2 VIS broadband anti-reflection coating delivers high transmission across the 450–700 nm wavelength range while providing excellent laser damage resistance.

ZEMAX files are offered to facilitate efficient optical design and simulation. Should you require custom specifications or higher-volume production, contact us for a tailored quote to meet your requirements.

Image for asset 291765

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%

Image for asset 291765

Note: Dmech: outer mount, DCA: clear aperture, Doptical: optical size, RR: retaining ring

Specifications broadband anti-reflective coating ARB2 VIS:

ARB 2 VIS Reflection Spectrum

  • Guaranteed residual reflection < 0.5 % for angles of incidence 0° ≤ AOI ≤ 15° in the AR range
  • Typical average residual reflection < 0.3 % for angles of incidence 0° ≤ AOI ≤ 15° in the AR range
  • Damage threshold H∞ > 30 J / cm² for 11 ns laser pulses (s‑on‑1) at 1064 nm and 10 Hz
  • AR range typical: 450–700 nm
  • Design adaptable to the spectral range of 350 nm ≤ λ ≤ 950 nm and to higher angles of incidence

Product Biconcave lens; N-BK 7; D=10; F=-10; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=12.7; F=-50; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=22.4; F=-20; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=22.4; F=-50; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=22.4; F=-40; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=22.4; F=-150; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=12.7; F=-20; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=12.7; F=-100; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=22.4; F=-30; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=22.4; F=-100; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=25.4; F=-50; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=12.7; F=-200; mounted [ARB2-VIS]
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 Ø 25.4 mm Ø 12.7 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 -50.0 mm -200.0 mm
Mount Nanobench Nanobench Microbench Microbench Microbench Microbench Nanobench Nanobench Microbench Microbench Microbench Nanobench
Mounted Mounted 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 N-BK7
N-BK7 		N-BK7
Coating ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS
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 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 12.0 mm 8.0 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 -52.33 mm -209.83 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 52.33 mm 209.83 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 ± 0.2 mm ± 0.1 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 4.6 mm 1.7 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 ' 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 - 0.15 mm - 0.12 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 1.56 mm 0.1 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 		-50.2 mm
-50.88 mm
-51.4 mm 		-202.0 mm
-203.4 mm
-206.8 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 30.0 mm 16.0 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 24.0 mm 11.5 mm
Coating Specification Selectable Selectable Selectable Selectable Selectable Selectable Selectable Selectable Selectable Selectable Selectable Selectable
Part Number G052401322 G052403322 G063058322 G063061322 G063060322 G063063322 G052402322 G052404322 G063059322 G063062322 G063892322 G052405322

  • Tight manufacturing tolerances for excellent performance and precision mounting

  • Standard VIS coating: ARB2 VIS (450–700 nm), designed to maximize transmission across the visible spectrum

  • Our 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

ZEMAX Files for Symmetric-Concave Lenses
Product Biconcave lens; N-BK 7; D=10; F=-10; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=12.7; F=-50; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=22.4; F=-20; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=22.4; F=-50; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=22.4; F=-40; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=22.4; F=-150; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=12.7; F=-20; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=12.7; F=-100; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=22.4; F=-30; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=22.4; F=-100; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=25.4; F=-50; mounted [ARB2-VIS] Biconcave lens; N-BK 7; D=12.7; F=-200; mounted [ARB2-VIS]
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 Ø 25.4 mm Ø 12.7 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 -50.0 mm -200.0 mm
Mount Nanobench Nanobench Microbench Microbench Microbench Microbench Nanobench Nanobench Microbench Microbench Microbench Nanobench
Mounted Mounted 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 N-BK7
N-BK7 		N-BK7
Coating ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS
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 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 12.0 mm 8.0 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 -52.33 mm -209.83 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 52.33 mm 209.83 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 ± 0.2 mm ± 0.1 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 4.6 mm 1.7 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 ' 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 - 0.15 mm - 0.12 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 1.56 mm 0.1 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 		-50.2 mm
-50.88 mm
-51.4 mm 		-202.0 mm
-203.4 mm
-206.8 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 30.0 mm 16.0 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 24.0 mm 11.5 mm
Coating Specification Selectable Selectable Selectable Selectable Selectable Selectable Selectable Selectable Selectable Selectable Selectable Selectable
Part Number G052401322 G052403322 G063058322 G063061322 G063060322 G063063322 G052402322 G052404322 G063059322 G063062322 G063892322 G052405322

  • Tight manufacturing tolerances for excellent performance and precision mounting

  • Standard VIS coating: ARB2 VIS (450–700 nm), designed to maximize transmission across the visible spectrum

  • Our 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

ZEMAX Files for Symmetric-Concave Lenses
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