Unmounted Fused Silica Plano-Convex Lenses, Uncoated
Excelitas offers a wide selection of unmounted fused-silica plano-convex lenses designed for flexible integration into optical systems. Tight focal-length tolerances ensure consistent and reliable optical performance. Manufactured from fused silica, these lenses are well-suited for UV and high-power applications, delivering a high damage threshold and dependable operation in demanding environments. Uncoated options are ideal for broad-wavelength applications, as fused silica transmits more efficiently than standard optical glass.
Excelitas unmounted fused silica lenses are offered in various focal lengths and diameters, allowing you to select the optimal components for UV or high-power applications. Production uses only premium materials from trusted suppliers and maintains strict tolerances to ensure exceptional quality. Each lens type is also available with a high-quality black anodized engraved aluminum mount.
ZEMAX files are provided to streamline 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 | Plano-convex lens; Fused silica; D=8; F=12.5 | Plano-convex lens; Fused silica; D=10; F=15 | Plano-convex lens; Fused silica; D=12.5; F=20 | Plano-convex lens; Fused silica; D=12.5; F=25 | Plano-convex lens; Fused silica; D=18; F=30 | Plano-convex lens; Fused silica; D=22.4; F=40 | Plano-convex lens; Fused silica; D=22.4; F=50 | Plano-convex lens; Fused silica; D=22.4; F=60 | Plano-convex lens; Fused silica; D=22.4; F=80 | Plano-convex lens; Fused silica; D=22.4; F=100 | Plano-convex lens; Fused silica; D=22.4; F=200 | Plano-convex lens; Fused silica; D=31.5; F=40 | Plano-convex lens; Fused silica; D=31.5; F=50 | Plano-convex lens; Fused silica; D=31.5; F=60 | Plano-convex lens; Fused silica; D=31.5; F=80 | Plano-convex lens; Fused silica; D=31.5; F=100 | Plano-convex lens; Fused silica; D=31.5; F=140 | Plano-convex lens; Fused silica; D=31.5; F=200 | Plano-convex lens; Fused silica; D=31.5; F=300 | Plano-convex lens; Fused silica; D=31.5; F=400 | Plano-convex lens; Fused silica; D=50; F=100 | Plano-convex lens; Fused silica; D=50; F=150 | Plano-convex lens; Fused silica; D=50; F=200 | Plano-convex lens; Fused silica; D=50; F=250 |
| Shape | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular |
| Focal Length (+/-) | 12.5 mm | 15.0 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 | 200.0 mm | 40.0 mm | 50.0 mm | 60.0 mm | 80.0 mm | 100.0 mm | 140.0 mm | 200.0 mm | 300.0 mm | 400.0 mm | 100.0 mm | 150.0 mm | 200.0 mm | 250.0 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 | Fused Silica | Fused Silica | Fused Silica | Fused Silica |
| Optic Size | Ø 8.0 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 31.5 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 | Ø 31.5 mm | Ø 31.5 mm | Ø 50.0 mm | Ø 50.0 mm | Ø 50.0 mm | Ø 50.0 mm |
| Optic Center Thickness | 2.4 mm | 2.9 mm | 3.5 mm | 3.0 mm | 4.4 mm | 5.0 mm | 4.1 mm | 3.7 mm | 3.1 mm | 2.8 mm | 2.1 mm | 9.5 mm | 7.5 mm | 6.4 mm | 5.2 mm | 4.5 mm | 3.3 mm | 3.3 mm | 3.0 mm | 2.1 mm | 8.5 mm | 6.1 mm | 5.1 mm | 4.4 mm |
| Radius of Curvature 1 | 6.355 mm | 7.499 mm | 10.0 mm | 12.589 mm | 15.51 mm | 19.668 mm | 25.119 mm | 30.287 mm | 40.388 mm | 50.481 mm | 100.0 mm | 20.316 mm | 25.483 mm | 30.509 mm | 40.681 mm | 50.841 mm | 70.287 mm | 101.82 mm | 152.896 mm | 199.53 mm | 50.481 mm | 75.531 mm | 100.0 mm | 125.89 mm |
| Radius of Curvature 2 | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm |
| Tolerance thickness | ± 0.15 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 | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm |
| Optic Edge Thickness | 1.0 mm | 1.0 mm | 1.3 mm | 1.3 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.6 mm | 1.5 mm | 1.5 mm | 1.5 mm | 2.0 mm | 2.1 mm | 2.0 mm | 2.0 mm | 2.0 mm | 1.5 mm | 2.1 mm | 2.2 mm | 1.5 mm | 1.8 mm | 1.8 mm | 1.9 mm | 1.9 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 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' |
| Tolerance of optic size | - 0.09 mm | - 0.09 mm | - 0.11 mm | - 0.11 mm | - 0.11 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 | - 0.07 mm | - 0.07 mm | - 0.07 mm | - 0.16 mm | - 0.16 mm | - 0.16 mm | - 0.16 mm |
| Weight (kg) | 6.0E-4 | 0.002 | 0.002 | |||||||||||||||||||||
| f' at X nm |
12.5 mm 12.72 mm 13.09 mm 13.35 mm 13.81 mm 14.13 mm |
14.75 mm 15.01 mm 15.44 mm 15.75 mm 16.3 mm 16.67 mm |
19.67 mm 20.02 mm 20.59 mm 21.01 mm 21.74 mm 22.23 mm |
24.77 mm 25.2 mm 25.92 mm 26.44 mm 27.36 mm 27.99 mm |
30.51 mm 31.05 mm 31.94 mm 32.56 mm 33.71 mm 34.49 mm |
38.69 mm 39.37 mm 40.5 mm 41.31 mm 42.75 mm 43.73 mm |
49.42 mm 50.29 mm 51.73 mm 52.76 mm 54.6 mm 55.85 mm |
59.58 mm 60.63 mm 62.37 mm 63.62 mm 65.83 mm 67.34 mm |
79.45 mm 80.85 mm 83.17 mm 84.83 mm 87.79 mm 89.8 mm |
99.31 mm 101.06 mm 103.95 mm 106.03 mm 109.77 mm 112.25 mm |
196.73 mm 200.19 mm 205.92 mm 210.04 mm 217.35 mm 222.37 mm |
39.95 mm 40.66 mm 41.83 mm 42.67 mm 44.16 mm 45.18 mm |
50.11 mm 51.0 mm 52.47 mm 53.53 mm 55.39 mm 56.68 mm |
60.0 mm 61.06 mm 62.82 mm 64.09 mm 66.31 mm 67.85 mm |
80.0 mm 81.41 mm 83.77 mm 85.45 mm 88.42 mm 90.48 mm |
99.97 mm 101.75 mm 104.69 mm 106.79 mm 110.51 mm 113.07 mm |
138.21 mm 140.7 mm 144.73 mm 147.63 mm 152.77 mm 156.3 mm |
200.22 mm 203.77 mm 209.66 mm 213.88 mm 221.31 mm 226.45 mm |
300.65 mm 305.99 mm 314.83 mm 321.16 mm 332.33 mm 340.05 mm |
392.35 mm 399.31 mm 410.86 mm 419.12 mm 433.69 mm 443.77 mm |
99.31 mm 101.06 mm 103.95 mm 106.03 mm 109.77 mm 112.25 mm |
148.59 mm 151.2 mm 155.54 mm 158.65 mm 164.17 mm 167.95 mm |
196.73 mm 200.19 mm 205.92 mm 210.04 mm 217.35 mm 222.37 mm |
247.66 mm 252.02 mm 259.24 mm 264.42 mm 273.63 mm 279.95 mm |
| s' at X nm | 10.91 mm | 12.83 mm | 17.35 mm | 22.78 mm | 27.59 mm | 35.38 mm | 46.7 mm | 57.13 mm | 77.4 mm | 97.45 mm | 195.33 mm | 33.65 mm | 45.14 mm | 55.75 mm | 76.55 mm | 96.99 mm | 136.09 mm | 198.03 mm | 298.66 mm | 390.96 mm | 93.67 mm | 144.54 mm | 193.34 mm | 244.74 mm |
| Part Number | G312255000 | G312256000 | G312257000 | G312258000 | G312259000 | G312286000 | G312300000 | G312301000 | G312302000 | G312303000 | G312304000 | G312411000 | G312412000 | G312413000 | G312414000 | G312415000 | G312305000 | G312416000 | G312417000 | G312306000 | G312242000 | G312243000 | G312244000 | G312245000 |
Made from fused silica for UV and high-power applications providing 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
Unmounted lenses allow for flexible, custom integration into your optical system
ZEMAX files available, enabling easy system design and simulation
| Product | Plano-convex lens; Fused silica; D=8; F=12.5 | Plano-convex lens; Fused silica; D=10; F=15 | Plano-convex lens; Fused silica; D=12.5; F=20 | Plano-convex lens; Fused silica; D=12.5; F=25 | Plano-convex lens; Fused silica; D=18; F=30 | Plano-convex lens; Fused silica; D=22.4; F=40 | Plano-convex lens; Fused silica; D=22.4; F=50 | Plano-convex lens; Fused silica; D=22.4; F=60 | Plano-convex lens; Fused silica; D=22.4; F=80 | Plano-convex lens; Fused silica; D=22.4; F=100 | Plano-convex lens; Fused silica; D=22.4; F=200 | Plano-convex lens; Fused silica; D=31.5; F=40 | Plano-convex lens; Fused silica; D=31.5; F=50 | Plano-convex lens; Fused silica; D=31.5; F=60 | Plano-convex lens; Fused silica; D=31.5; F=80 | Plano-convex lens; Fused silica; D=31.5; F=100 | Plano-convex lens; Fused silica; D=31.5; F=140 | Plano-convex lens; Fused silica; D=31.5; F=200 | Plano-convex lens; Fused silica; D=31.5; F=300 | Plano-convex lens; Fused silica; D=31.5; F=400 | Plano-convex lens; Fused silica; D=50; F=100 | Plano-convex lens; Fused silica; D=50; F=150 | Plano-convex lens; Fused silica; D=50; F=200 | Plano-convex lens; Fused silica; D=50; F=250 |
| Shape | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular |
| Focal Length (+/-) | 12.5 mm | 15.0 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 | 200.0 mm | 40.0 mm | 50.0 mm | 60.0 mm | 80.0 mm | 100.0 mm | 140.0 mm | 200.0 mm | 300.0 mm | 400.0 mm | 100.0 mm | 150.0 mm | 200.0 mm | 250.0 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 | Fused Silica | Fused Silica | Fused Silica | Fused Silica |
| Optic Size | Ø 8.0 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 31.5 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 | Ø 31.5 mm | Ø 31.5 mm | Ø 50.0 mm | Ø 50.0 mm | Ø 50.0 mm | Ø 50.0 mm |
| Optic Center Thickness | 2.4 mm | 2.9 mm | 3.5 mm | 3.0 mm | 4.4 mm | 5.0 mm | 4.1 mm | 3.7 mm | 3.1 mm | 2.8 mm | 2.1 mm | 9.5 mm | 7.5 mm | 6.4 mm | 5.2 mm | 4.5 mm | 3.3 mm | 3.3 mm | 3.0 mm | 2.1 mm | 8.5 mm | 6.1 mm | 5.1 mm | 4.4 mm |
| Radius of Curvature 1 | 6.355 mm | 7.499 mm | 10.0 mm | 12.589 mm | 15.51 mm | 19.668 mm | 25.119 mm | 30.287 mm | 40.388 mm | 50.481 mm | 100.0 mm | 20.316 mm | 25.483 mm | 30.509 mm | 40.681 mm | 50.841 mm | 70.287 mm | 101.82 mm | 152.896 mm | 199.53 mm | 50.481 mm | 75.531 mm | 100.0 mm | 125.89 mm |
| Radius of Curvature 2 | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm | -999.0 mm |
| Tolerance thickness | ± 0.15 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 | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm | ± 0.2 mm |
| Optic Edge Thickness | 1.0 mm | 1.0 mm | 1.3 mm | 1.3 mm | 1.5 mm | 1.5 mm | 1.5 mm | 1.6 mm | 1.5 mm | 1.5 mm | 1.5 mm | 2.0 mm | 2.1 mm | 2.0 mm | 2.0 mm | 2.0 mm | 1.5 mm | 2.1 mm | 2.2 mm | 1.5 mm | 1.8 mm | 1.8 mm | 1.9 mm | 1.9 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 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 3.0 ' | 4.0 ' | 4.0 ' | 4.0 ' | 4.0 ' |
| Tolerance of optic size | - 0.09 mm | - 0.09 mm | - 0.11 mm | - 0.11 mm | - 0.11 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 | - 0.07 mm | - 0.07 mm | - 0.07 mm | - 0.16 mm | - 0.16 mm | - 0.16 mm | - 0.16 mm |
| Weight (kg) | 6.0E-4 | 0.002 | 0.002 | |||||||||||||||||||||
| f' at X nm |
12.5 mm 12.72 mm 13.09 mm 13.35 mm 13.81 mm 14.13 mm |
14.75 mm 15.01 mm 15.44 mm 15.75 mm 16.3 mm 16.67 mm |
19.67 mm 20.02 mm 20.59 mm 21.01 mm 21.74 mm 22.23 mm |
24.77 mm 25.2 mm 25.92 mm 26.44 mm 27.36 mm 27.99 mm |
30.51 mm 31.05 mm 31.94 mm 32.56 mm 33.71 mm 34.49 mm |
38.69 mm 39.37 mm 40.5 mm 41.31 mm 42.75 mm 43.73 mm |
49.42 mm 50.29 mm 51.73 mm 52.76 mm 54.6 mm 55.85 mm |
59.58 mm 60.63 mm 62.37 mm 63.62 mm 65.83 mm 67.34 mm |
79.45 mm 80.85 mm 83.17 mm 84.83 mm 87.79 mm 89.8 mm |
99.31 mm 101.06 mm 103.95 mm 106.03 mm 109.77 mm 112.25 mm |
196.73 mm 200.19 mm 205.92 mm 210.04 mm 217.35 mm 222.37 mm |
39.95 mm 40.66 mm 41.83 mm 42.67 mm 44.16 mm 45.18 mm |
50.11 mm 51.0 mm 52.47 mm 53.53 mm 55.39 mm 56.68 mm |
60.0 mm 61.06 mm 62.82 mm 64.09 mm 66.31 mm 67.85 mm |
80.0 mm 81.41 mm 83.77 mm 85.45 mm 88.42 mm 90.48 mm |
99.97 mm 101.75 mm 104.69 mm 106.79 mm 110.51 mm 113.07 mm |
138.21 mm 140.7 mm 144.73 mm 147.63 mm 152.77 mm 156.3 mm |
200.22 mm 203.77 mm 209.66 mm 213.88 mm 221.31 mm 226.45 mm |
300.65 mm 305.99 mm 314.83 mm 321.16 mm 332.33 mm 340.05 mm |
392.35 mm 399.31 mm 410.86 mm 419.12 mm 433.69 mm 443.77 mm |
99.31 mm 101.06 mm 103.95 mm 106.03 mm 109.77 mm 112.25 mm |
148.59 mm 151.2 mm 155.54 mm 158.65 mm 164.17 mm 167.95 mm |
196.73 mm 200.19 mm 205.92 mm 210.04 mm 217.35 mm 222.37 mm |
247.66 mm 252.02 mm 259.24 mm 264.42 mm 273.63 mm 279.95 mm |
| s' at X nm | 10.91 mm | 12.83 mm | 17.35 mm | 22.78 mm | 27.59 mm | 35.38 mm | 46.7 mm | 57.13 mm | 77.4 mm | 97.45 mm | 195.33 mm | 33.65 mm | 45.14 mm | 55.75 mm | 76.55 mm | 96.99 mm | 136.09 mm | 198.03 mm | 298.66 mm | 390.96 mm | 93.67 mm | 144.54 mm | 193.34 mm | 244.74 mm |
| Part Number | G312255000 | G312256000 | G312257000 | G312258000 | G312259000 | G312286000 | G312300000 | G312301000 | G312302000 | G312303000 | G312304000 | G312411000 | G312412000 | G312413000 | G312414000 | G312415000 | G312305000 | G312416000 | G312417000 | G312306000 | G312242000 | G312243000 | G312244000 | G312245000 |
Made from fused silica for UV and high-power applications providing 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
Unmounted lenses allow for flexible, custom integration into your optical system
ZEMAX files available, enabling easy system design and simulation