Unmounted UV Fused Silica Symmetric-Convex Lenses, Uncoated
Excelitas offers a wide range of unmounted fused-silica lenses in various focal lengths and diameters, suitable for UV and high-power applications. Only premium materials from trusted manufacturers are used, and strict tolerances are maintained to ensure high quality. Each lens type is also offered with a black anodized, engraved aluminum mount.
Our symmetric-convex lenses are made from high-quality fused silica and supplied unmounted for flexible integration into custom optical systems. Their narrow focal-length tolerances ensure consistent system performance and reliable optical behavior. Designed for 1:1 imaging, these lenses have two equal radii of curvature to deliver precise, repeatable results in applications requiring exact image replication.
Made from fused silica, these lenses are suitable for UV and high-power applications, offering a high damage threshold and reliable performance in demanding conditions. Uncoated versions are ideal for a broad wavelength range, as fused silica provides higher transmission than standard optical glass.
ZEMAX files support fast and accurate 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=dm-dr-h'), F, F' = focal points, H, H' = principal points; Tolerances: focal length f: ±2% image distance s': ±2%
| Product | Biconvex lens; Fused silica; D=6; F=5 | Biconvex lens; Fused silica; D=10; F=10 | Biconvex lens; Fused silica; D=12.5; F=12.5 | Biconvex lens; Fused silica; D=12.5; F=16 | Biconvex lens; Fused silica; D=18; F=20 | Biconvex lens; Fused silica; D=22.4; F=25 | Biconvex lens; Fused silica; D=22.4; F=30 | Biconvex lens; Fused silica; D=22.4; F=40 | Biconvex lens; Fused silica; D=22.4; F=50 | Biconvex lens; Fused silica; D=22.4; F=60 | Biconvex lens; Fused silica; D=22.4; F=80 | Biconvex lens; Fused silica; D=22.4; F=100 | Biconvex lens; Fused silica; D=22.4; F=150 | Biconvex lens; Fused silica; D=22.4; F=200 | Biconvex lens; Fused silica; D=31.5; F=30 | Biconvex lens; Fused silica; D=31.5; F=40 | Biconvex lens; Fused silica; D=31.5; F=50 | Biconvex lens; Fused silica; D=31.5; F=60 | Biconvex lens; Fused silica; D=31.5; F=100 | Biconvex lens; Fused silica; D=31.5; F=120 |
| Shape | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular |
| Focal Length (+/-) | 5.0 mm | 10.0 mm | 12.5 mm | 16.0 mm | 20.0 mm | 25.0 mm | 30.0 mm | 40.0 mm | 50.0 mm | 60.0 mm | 80.0 mm | 100.0 mm | 150.0 mm | 200.0 mm | 30.0 mm | 40.0 mm | 50.0 mm | 60.0 mm | 100.0 mm | 120.0 mm |
| Optic Substrate | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica |
| Optic Size | Ø 6.0 mm | Ø 10.0 mm | Ø 12.5 mm | Ø 12.5 mm | Ø 18.0 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 31.5 mm | Ø 31.5 mm | Ø 31.5 mm | Ø 31.5 mm | Ø 31.5 mm | Ø 31.5 mm |
| Optic Center Thickness | 3.0 mm | 4.0 mm | 4.7 mm | 3.8 mm | 5.8 mm | 7.0 mm | 6.0 mm | 4.9 mm | 4.2 mm | 3.7 mm | 3.3 mm | 2.9 mm | 2.4 mm | 2.2 mm | 11.5 mm | 8.6 mm | 7.3 mm | 6.2 mm | 4.5 mm | 4.1 mm |
| Radius of Curvature 1 | 5.012 mm | 9.578 mm | 11.548 mm | 15.735 mm | 19.668 mm | 24.406 mm | 29.007 mm | 39.525 mm | 49.403 mm | 60.43 mm | 78.298 mm | 100.0 mm | 149.62 mm | 199.53 mm | 28.49 mm | 39.243 mm | 49.594 mm | 60.0 mm | 101.092 mm | 121.446 mm |
| Radius of Curvature 2 | -5.012 mm | -9.578 mm | -11.548 mm | -15.735 mm | -19.668 mm | -24.406 mm | -29.007 mm | -39.525 mm | -49.403 mm | -60.43 mm | -78.298 mm | -100.0 mm | -149.62 mm | -199.53 mm | -28.49 mm | -39.243 mm | -49.594 mm | -60.0 mm | -101.092 mm | -121.446 mm |
| Tolerance thickness | ± 0.1 mm | ± 0.15 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm |
| Optic Edge Thickness | 1.0 mm | 1.2 mm | 1.0 mm | 1.2 mm | 1.4 mm | 1.6 mm | 1.5 mm | 1.7 mm | 1.6 mm | 1.6 mm | 1.7 mm | 1.6 mm | 1.6 mm | 1.6 mm | 2.0 mm | 2.0 mm | 2.2 mm | 2.0 mm | 2.0 mm | 2.1 mm |
| Optic Centering Accuracy (min,sec) | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' |
| Tolerance of optic size | - 0.075 mm | - 0.09 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.07 mm | - 0.07 mm | - 0.07 mm | - 0.07 mm | - 0.07 mm | - 0.07 mm |
| f' at X nm |
5.48 mm 5.57 mm 5.72 mm 5.83 mm 6.01 mm 6.14 mm |
10.13 mm 10.3 mm 10.58 mm 10.79 mm 11.14 mm 11.39 mm |
12.2 mm 12.4 mm 12.74 mm 12.98 mm 13.41 mm 13.7 mm |
16.13 mm 16.41 mm 16.87 mm 17.2 mm 17.78 mm 18.17 mm |
20.36 mm 20.7 mm 21.28 mm 21.69 mm 22.42 mm 22.91 mm |
25.23 mm 25.66 mm 26.37 mm 26.87 mm 27.78 mm 28.4 mm |
29.56 mm 30.07 mm 30.91 mm 31.52 mm 32.59 mm 33.32 mm |
39.71 mm 40.4 mm 41.54 mm 42.36 mm 43.81 mm 44.8 mm |
49.3 mm 50.16 mm 51.58 mm 52.61 mm 54.42 mm 55.66 mm |
60.06 mm 61.11 mm 62.85 mm 64.1 mm 66.31 mm 67.82 mm |
77.57 mm 78.93 mm 81.18 mm 82.79 mm 85.66 mm 87.62 mm |
98.85 mm 100.58 mm 103.45 mm 105.51 mm 109.18 mm 111.67 mm |
147.57 mm 150.16 mm 154.46 mm 157.54 mm 163.01 mm 166.75 mm |
196.63 mm 200.09 mm 205.81 mm 209.92 mm 217.22 mm 222.2 mm |
30.06 mm 30.56 mm 31.4 mm 32.01 mm 33.07 mm 33.8 mm |
40.06 mm 40.76 mm 41.9 mm 42.73 mm 44.17 mm 45.17 mm |
50.0 mm 50.87 mm 52.32 mm 53.35 mm 55.18 mm 56.44 mm |
60.04 mm 61.09 mm 62.84 mm 64.08 mm 66.29 mm 67.81 mm |
100.14 mm 101.91 mm 104.84 mm 106.94 mm 110.64 mm 113.2 mm |
120.09 mm 122.21 mm 125.73 mm 128.25 mm 132.69 mm 135.76 mm |
| Part Number | G311202000 | G311203000 | G311204000 | G311205000 | G311206000 | G311026000 | G311207000 | G311208000 | G311209000 | G311210000 | G311027000 | G311211000 | G311212000 | G311213000 | G311711000 | G311712000 | G311713000 | G311714000 | G311716000 | G311718000 |
Two equal radii of curvature for precision 1:1 imaging
Made from fused silica for UV and high power applications, offering high damage threshold, low dispersion, and excellent UV transmission
Tight manufacturing tolerances for excellent performance and precision mounting
Uncoated, suitable for broad wavelength range; for details, refer to the typical transmission curve of fused silica
These lenses are supplied unmounted to allow for flexible, custom integration into your optical system
ZEMAX files available, enabling easy system design and simulation
| Product | Biconvex lens; Fused silica; D=6; F=5 | Biconvex lens; Fused silica; D=10; F=10 | Biconvex lens; Fused silica; D=12.5; F=12.5 | Biconvex lens; Fused silica; D=12.5; F=16 | Biconvex lens; Fused silica; D=18; F=20 | Biconvex lens; Fused silica; D=22.4; F=25 | Biconvex lens; Fused silica; D=22.4; F=30 | Biconvex lens; Fused silica; D=22.4; F=40 | Biconvex lens; Fused silica; D=22.4; F=50 | Biconvex lens; Fused silica; D=22.4; F=60 | Biconvex lens; Fused silica; D=22.4; F=80 | Biconvex lens; Fused silica; D=22.4; F=100 | Biconvex lens; Fused silica; D=22.4; F=150 | Biconvex lens; Fused silica; D=22.4; F=200 | Biconvex lens; Fused silica; D=31.5; F=30 | Biconvex lens; Fused silica; D=31.5; F=40 | Biconvex lens; Fused silica; D=31.5; F=50 | Biconvex lens; Fused silica; D=31.5; F=60 | Biconvex lens; Fused silica; D=31.5; F=100 | Biconvex lens; Fused silica; D=31.5; F=120 |
| Shape | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular |
| Focal Length (+/-) | 5.0 mm | 10.0 mm | 12.5 mm | 16.0 mm | 20.0 mm | 25.0 mm | 30.0 mm | 40.0 mm | 50.0 mm | 60.0 mm | 80.0 mm | 100.0 mm | 150.0 mm | 200.0 mm | 30.0 mm | 40.0 mm | 50.0 mm | 60.0 mm | 100.0 mm | 120.0 mm |
| Optic Substrate | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica | Fused Silica |
| Optic Size | Ø 6.0 mm | Ø 10.0 mm | Ø 12.5 mm | Ø 12.5 mm | Ø 18.0 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 22.4 mm | Ø 31.5 mm | Ø 31.5 mm | Ø 31.5 mm | Ø 31.5 mm | Ø 31.5 mm | Ø 31.5 mm |
| Optic Center Thickness | 3.0 mm | 4.0 mm | 4.7 mm | 3.8 mm | 5.8 mm | 7.0 mm | 6.0 mm | 4.9 mm | 4.2 mm | 3.7 mm | 3.3 mm | 2.9 mm | 2.4 mm | 2.2 mm | 11.5 mm | 8.6 mm | 7.3 mm | 6.2 mm | 4.5 mm | 4.1 mm |
| Radius of Curvature 1 | 5.012 mm | 9.578 mm | 11.548 mm | 15.735 mm | 19.668 mm | 24.406 mm | 29.007 mm | 39.525 mm | 49.403 mm | 60.43 mm | 78.298 mm | 100.0 mm | 149.62 mm | 199.53 mm | 28.49 mm | 39.243 mm | 49.594 mm | 60.0 mm | 101.092 mm | 121.446 mm |
| Radius of Curvature 2 | -5.012 mm | -9.578 mm | -11.548 mm | -15.735 mm | -19.668 mm | -24.406 mm | -29.007 mm | -39.525 mm | -49.403 mm | -60.43 mm | -78.298 mm | -100.0 mm | -149.62 mm | -199.53 mm | -28.49 mm | -39.243 mm | -49.594 mm | -60.0 mm | -101.092 mm | -121.446 mm |
| Tolerance thickness | ± 0.1 mm | ± 0.15 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm |
| Optic Edge Thickness | 1.0 mm | 1.2 mm | 1.0 mm | 1.2 mm | 1.4 mm | 1.6 mm | 1.5 mm | 1.7 mm | 1.6 mm | 1.6 mm | 1.7 mm | 1.6 mm | 1.6 mm | 1.6 mm | 2.0 mm | 2.0 mm | 2.2 mm | 2.0 mm | 2.0 mm | 2.1 mm |
| Optic Centering Accuracy (min,sec) | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' |
| Tolerance of optic size | - 0.075 mm | - 0.09 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.13 mm | - 0.07 mm | - 0.07 mm | - 0.07 mm | - 0.07 mm | - 0.07 mm | - 0.07 mm |
| f' at X nm |
5.48 mm 5.57 mm 5.72 mm 5.83 mm 6.01 mm 6.14 mm |
10.13 mm 10.3 mm 10.58 mm 10.79 mm 11.14 mm 11.39 mm |
12.2 mm 12.4 mm 12.74 mm 12.98 mm 13.41 mm 13.7 mm |
16.13 mm 16.41 mm 16.87 mm 17.2 mm 17.78 mm 18.17 mm |
20.36 mm 20.7 mm 21.28 mm 21.69 mm 22.42 mm 22.91 mm |
25.23 mm 25.66 mm 26.37 mm 26.87 mm 27.78 mm 28.4 mm |
29.56 mm 30.07 mm 30.91 mm 31.52 mm 32.59 mm 33.32 mm |
39.71 mm 40.4 mm 41.54 mm 42.36 mm 43.81 mm 44.8 mm |
49.3 mm 50.16 mm 51.58 mm 52.61 mm 54.42 mm 55.66 mm |
60.06 mm 61.11 mm 62.85 mm 64.1 mm 66.31 mm 67.82 mm |
77.57 mm 78.93 mm 81.18 mm 82.79 mm 85.66 mm 87.62 mm |
98.85 mm 100.58 mm 103.45 mm 105.51 mm 109.18 mm 111.67 mm |
147.57 mm 150.16 mm 154.46 mm 157.54 mm 163.01 mm 166.75 mm |
196.63 mm 200.09 mm 205.81 mm 209.92 mm 217.22 mm 222.2 mm |
30.06 mm 30.56 mm 31.4 mm 32.01 mm 33.07 mm 33.8 mm |
40.06 mm 40.76 mm 41.9 mm 42.73 mm 44.17 mm 45.17 mm |
50.0 mm 50.87 mm 52.32 mm 53.35 mm 55.18 mm 56.44 mm |
60.04 mm 61.09 mm 62.84 mm 64.08 mm 66.29 mm 67.81 mm |
100.14 mm 101.91 mm 104.84 mm 106.94 mm 110.64 mm 113.2 mm |
120.09 mm 122.21 mm 125.73 mm 128.25 mm 132.69 mm 135.76 mm |
| Part Number | G311202000 | G311203000 | G311204000 | G311205000 | G311206000 | G311026000 | G311207000 | G311208000 | G311209000 | G311210000 | G311027000 | G311211000 | G311212000 | G311213000 | G311711000 | G311712000 | G311713000 | G311714000 | G311716000 | G311718000 |
Two equal radii of curvature for precision 1:1 imaging
Made from fused silica for UV and high power applications, offering high damage threshold, low dispersion, and excellent UV transmission
Tight manufacturing tolerances for excellent performance and precision mounting
Uncoated, suitable for broad wavelength range; for details, refer to the typical transmission curve of fused silica
These lenses are supplied unmounted to allow for flexible, custom integration into your optical system
ZEMAX files available, enabling easy system design and simulation