Symmetric-Concave Singlet Lenses

Mounted UV Fused Silica Symmetric-Concave Lenses, ARB2-VIS

Our LINOS® mounted symmetric-concave lenses, made from premium fused silica, are available in various focal lengths and diameters for visible wavelengths. They deliver reliable performance in demanding UV and high-power applications. These lenses are ideal for beam expansion, collimated light divergence, and situations requiring minimal spherical aberration and balanced optical quality. Each lens is produced to strict tolerances for exceptional quality and long-term stability, using fused silica from trusted suppliers. Both mounted versions with black-anodized, engraved aluminum mounts and unmounted versions are available for flexible integration.

Our mounted symmetric-concave lenses, crafted from high-quality fused silica, integrate seamlessly with LINOS Microbench and Nanobench systems. Precise focal-length tolerances ensure reliable optical performance. Each lens features two equal radii of curvature, providing accurate results for applications requiring controlled beam divergence.

The ARB2 VIS broadband anti-reflection coating ensures high transmission from 450 to 700 nm and excellent laser damage resistance. Fused silica outperforms standard optical glasses in the visible range and provides superior UV transmission.

ZEMAX files are provided to support efficient optical design and simulation. For custom UV coatings, specific requirements, or high-volume orders, contact us for a tailored quotation to your specifications.

Image for asset 291770

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 291770

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

Specifications broadband anti-reflective coating ARB2 UV (custom request only):

ARB 2 UV 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 > 2 J / cm² for 9 ns laser pulses at 266 nm and 10 Hz
  • AR range typical: 250–400 nm
  • Design adaptable to the spectral range of 245 nm ≤ λ ≤ 450 nm nm and to higher angles of incidence

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; Fused silica; D=22.4; F=-20; mounted [ARB2-VIS] Biconcave lens; Fused silica; D=22.4; F=-40; mounted [ARB2-VIS] Biconcave lens; Fused silica; D=22.4; F=-50; mounted [ARB2-VIS] Biconcave lens; Fused silica; D=22.4; F=-30; mounted [ARB2-VIS] Biconcave lens; Fused silica; D=22.4; F=-100; mounted [ARB2-VIS]
Optic Size Ø 22.4 mm Ø 22.4 mm Ø 22.4 mm Ø 22.4 mm Ø 22.4 mm
Focal Length (+/-) -20.0 mm -40.0 mm -50.0 mm -30.0 mm -100.0 mm
Mount Microbench Microbench Microbench Microbench Microbench
Optic Substrate Fused Silica Fused Silica Fused Silica Fused Silica Fused Silica
Coating ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS
Optic Center Thickness 1.5 mm 1.5 mm 1.5 mm 1.5 mm 1.5 mm
Length 10.0 mm 10.0 mm 10.0 mm 10.0 mm 10.0 mm
Radius of Curvature 1 -20.535 mm -40.388 mm -50.481 mm -30.287 mm -101.45 mm
Radius of Curvature 2 20.535 mm 40.388 mm 50.481 mm 30.287 mm 101.45 mm
Tolerance thickness ± 0.2 mm ± 0.2 mm ± 0.2 mm ± 0.2 mm ± 0.2 mm
Optic Edge Thickness 8.1 mm 4.7 mm 4.1 mm 5.7 mm 2.7 mm
Optic Centering Accuracy (min,sec) 4.0 ' 4.0 ' 4.0 ' 4.0 ' 4.0 '
Tolerance of optic size - 0.13 mm - 0.13 mm - 0.13 mm - 0.13 mm - 0.13 mm
Height 3.3 mm 1.6 mm 1.3 mm 2.1 mm 0.6 mm
f' at X nm -19.94 mm
-20.3 mm
-20.89 mm
-21.32 mm
-22.06 mm
-22.59 mm
-39.46 mm
-40.17 mm
-41.33 mm
-42.17 mm
-43.64 mm
-44.67 mm
-49.38 mm
-50.26 mm
-51.72 mm
-52.77 mm
-54.6 mm
-55.89 mm
-29.53 mm
-30.06 mm
-30.93 mm
-31.56 mm
-32.66 mm
-33.43 mm
-99.49 mm
-101.26 mm
-104.2 mm
-106.3 mm
-110.0 mm
-112.59 mm
Outer Mount Diameter 25.0 mm 25.0 mm 25.0 mm 25.0 mm 25.0 mm
Clear aperture 21.4 mm 21.4 mm 21.4 mm 21.4 mm 21.4 mm
Coating Specification Selectable Selectable Selectable Selectable Selectable
Part Number G063344322 G063346322 G063347322 G063345322 G063348322
  • Made from fused silica for UV and high power applications

  • Tight manufacturing tolerances for excellent performance and precision mounting

  • Standard VIS coating: ARB2 VIS (450–700 nm), or customized ARB2 UV coating (250–400 nm) available on request

  • 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; Fused silica; D=22.4; F=-20; mounted [ARB2-VIS] Biconcave lens; Fused silica; D=22.4; F=-40; mounted [ARB2-VIS] Biconcave lens; Fused silica; D=22.4; F=-50; mounted [ARB2-VIS] Biconcave lens; Fused silica; D=22.4; F=-30; mounted [ARB2-VIS] Biconcave lens; Fused silica; D=22.4; F=-100; mounted [ARB2-VIS]
Optic Size Ø 22.4 mm Ø 22.4 mm Ø 22.4 mm Ø 22.4 mm Ø 22.4 mm
Focal Length (+/-) -20.0 mm -40.0 mm -50.0 mm -30.0 mm -100.0 mm
Mount Microbench Microbench Microbench Microbench Microbench
Optic Substrate Fused Silica Fused Silica Fused Silica Fused Silica Fused Silica
Coating ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS
Optic Center Thickness 1.5 mm 1.5 mm 1.5 mm 1.5 mm 1.5 mm
Length 10.0 mm 10.0 mm 10.0 mm 10.0 mm 10.0 mm
Radius of Curvature 1 -20.535 mm -40.388 mm -50.481 mm -30.287 mm -101.45 mm
Radius of Curvature 2 20.535 mm 40.388 mm 50.481 mm 30.287 mm 101.45 mm
Tolerance thickness ± 0.2 mm ± 0.2 mm ± 0.2 mm ± 0.2 mm ± 0.2 mm
Optic Edge Thickness 8.1 mm 4.7 mm 4.1 mm 5.7 mm 2.7 mm
Optic Centering Accuracy (min,sec) 4.0 ' 4.0 ' 4.0 ' 4.0 ' 4.0 '
Tolerance of optic size - 0.13 mm - 0.13 mm - 0.13 mm - 0.13 mm - 0.13 mm
Height 3.3 mm 1.6 mm 1.3 mm 2.1 mm 0.6 mm
f' at X nm -19.94 mm
-20.3 mm
-20.89 mm
-21.32 mm
-22.06 mm
-22.59 mm
-39.46 mm
-40.17 mm
-41.33 mm
-42.17 mm
-43.64 mm
-44.67 mm
-49.38 mm
-50.26 mm
-51.72 mm
-52.77 mm
-54.6 mm
-55.89 mm
-29.53 mm
-30.06 mm
-30.93 mm
-31.56 mm
-32.66 mm
-33.43 mm
-99.49 mm
-101.26 mm
-104.2 mm
-106.3 mm
-110.0 mm
-112.59 mm
Outer Mount Diameter 25.0 mm 25.0 mm 25.0 mm 25.0 mm 25.0 mm
Clear aperture 21.4 mm 21.4 mm 21.4 mm 21.4 mm 21.4 mm
Coating Specification Selectable Selectable Selectable Selectable Selectable
Part Number G063344322 G063346322 G063347322 G063345322 G063348322
  • Made from fused silica for UV and high power applications

  • Tight manufacturing tolerances for excellent performance and precision mounting

  • Standard VIS coating: ARB2 VIS (450–700 nm), or customized ARB2 UV coating (250–400 nm) available on request

  • 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

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