Unmounted UV Fused Silica Symmetric-Concave Lenses, ARB2-VIS
Excelitas provides a broad selection of LINOS® unmounted fused silica lenses in various focal lengths and diameters, simplifying the selection process for UV and high-power optical applications. We use only premium materials from trusted manufacturers and maintain strict tolerances to ensure exceptional quality. Each standard lens includes double-sided anti-reflection coatings optimized for the visible (VIS) wavelength range to maximize transmittance. All unmounted lens types are also available with a high-quality, black-anodized, engraved aluminum mount.
Our unmounted symmetric-concave lenses feature two identical radii of curvature, allowing flexible integration into optical systems. Tight focal-length tolerances ensure consistent performance and reliability. The ARB2 VIS broadband anti-reflection coating provides high transmission from 450 to 700 nm and strong laser-damage resistance. Fused silica offers better visible-spectrum performance and superior UV transmission compared to standard optical glass.
ZEMAX files are provided to streamline optical design and simulation. For customized UV coatings, individual specifications, or higher-volume production, contact us for a quotation tailored to your specific 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=dm-dr-h'), F, F' = focal points, H, H' = principal points; Tolerances: focal length f: ±2% image distance s': ±2%
Specifications broadband anti-reflective coating ARB2 UV (custom request only):
- 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:
- 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 [ARB2-VIS] | Biconcave lens; Fused silica; D=22.4; F=-40 [ARB2-VIS] | Biconcave lens; Fused silica; D=22.4; F=-30 [ARB2-VIS] | Biconcave lens; Fused silica; D=22.4; F=-50 [ARB2-VIS] | Biconcave lens; Fused silica; D=22.4; F=-100 [ARB2-VIS] | Biconcave lens; Fused silica; D=22.4; F=-150 [ARB2-VIS] |
| Optic Size | Ø 22.4 mm | 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 | -30.0 mm | -50.0 mm | -100.0 mm | -150.0 mm |
| Optic Substrate | Fused Silica | 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 | ARB 2 VIS |
| Optic Center Thickness | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm |
| Radius of Curvature 1 | -20.535 mm | -40.388 mm | -30.287 mm | -50.481 mm | -101.45 mm | -149.62 mm |
| Radius of Curvature 2 | 20.535 mm | 40.388 mm | 30.287 mm | 50.481 mm | 101.45 mm | 149.62 mm |
| Tolerance thickness | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm |
| Optic Edge Thickness | 8.1 mm | 4.7 mm | 5.7 mm | 4.1 mm | 2.7 mm | 2.3 mm |
| Optic Centering Accuracy (min,sec) | 4.0 ' | 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 | - 0.13 mm |
| Height | 3.3 mm | 1.6 mm | 2.1 mm | 1.3 mm | 0.6 mm | 0.4 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 |
-29.53 mm -30.06 mm -30.93 mm -31.56 mm -32.66 mm -33.43 mm |
-49.38 mm -50.26 mm -51.72 mm -52.77 mm -54.6 mm -55.89 mm |
-99.49 mm -101.26 mm -104.2 mm -106.3 mm -110.0 mm -112.59 mm |
-146.85 mm -149.46 mm -153.79 mm -156.89 mm -162.34 mm -166.17 mm |
| Coating Specification | Selectable | Selectable | Selectable | Selectable | Selectable | Selectable |
| Part Number | G313330322 | G313332322 | G313331322 | G313333322 | G313334322 | G313335322 |
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
Unmounted lenses offer flexibility for custom integration into your optical system
ZEMAX files available, enabling easy system design and simulation
| Product | Biconcave lens; Fused silica; D=22.4; F=-20 [ARB2-VIS] | Biconcave lens; Fused silica; D=22.4; F=-40 [ARB2-VIS] | Biconcave lens; Fused silica; D=22.4; F=-30 [ARB2-VIS] | Biconcave lens; Fused silica; D=22.4; F=-50 [ARB2-VIS] | Biconcave lens; Fused silica; D=22.4; F=-100 [ARB2-VIS] | Biconcave lens; Fused silica; D=22.4; F=-150 [ARB2-VIS] |
| Optic Size | Ø 22.4 mm | 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 | -30.0 mm | -50.0 mm | -100.0 mm | -150.0 mm |
| Optic Substrate | Fused Silica | 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 | ARB 2 VIS |
| Optic Center Thickness | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.5 mm |
| Radius of Curvature 1 | -20.535 mm | -40.388 mm | -30.287 mm | -50.481 mm | -101.45 mm | -149.62 mm |
| Radius of Curvature 2 | 20.535 mm | 40.388 mm | 30.287 mm | 50.481 mm | 101.45 mm | 149.62 mm |
| Tolerance thickness | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm |
| Optic Edge Thickness | 8.1 mm | 4.7 mm | 5.7 mm | 4.1 mm | 2.7 mm | 2.3 mm |
| Optic Centering Accuracy (min,sec) | 4.0 ' | 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 | - 0.13 mm |
| Height | 3.3 mm | 1.6 mm | 2.1 mm | 1.3 mm | 0.6 mm | 0.4 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 |
-29.53 mm -30.06 mm -30.93 mm -31.56 mm -32.66 mm -33.43 mm |
-49.38 mm -50.26 mm -51.72 mm -52.77 mm -54.6 mm -55.89 mm |
-99.49 mm -101.26 mm -104.2 mm -106.3 mm -110.0 mm -112.59 mm |
-146.85 mm -149.46 mm -153.79 mm -156.89 mm -162.34 mm -166.17 mm |
| Coating Specification | Selectable | Selectable | Selectable | Selectable | Selectable | Selectable |
| Part Number | G313330322 | G313332322 | G313331322 | G313333322 | G313334322 | G313335322 |
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
Unmounted lenses offer flexibility for custom integration into your optical system
ZEMAX files available, enabling easy system design and simulation