The Precision People
800-770-7320
954-748-1715
AL23--Fused Silica Plano-Concave Lenses
| Material: | UV Grade Fused Silica |  |
| Design Wavelength: | 587.6nm; n=1.45848 | |
| Diameter Tolerance: | +0.0/-0.1mm | |
| Center Thickness Tolerance: | +0.2mm | |
| Focal Length Tolerance: | +2% | |
| Centering Tolerance: | 3 arc minutes | |
| Surface Quality: | 40/20 scratch-dig | |
| Clear Aperture: | >90% | |
| Surface Irregularity: | λ/4 @632.8nm | |
| Bevel: | 0.2mmX45o | |
| Coatings: | without coating |
| (mm) | ||||||
| Catalog No. | Dia. | EFL | BFL | R1 | Tc | Te |
| AL23-004-006 | 4.0 | -6.3 | -7.33 | -2.89 | 1.5 | 2.30 |
| AL23-004-010 | 4.0 | -10.0 | -11.063 | -4.585 | 1.55 | 2.00 |
| AL23-004-015 | 4.0 | -15.0 | -6.172 | -6.877 | 1.71 | 2.00 |
| AL23-004-020 | 4.0 | -20.0 | -21.221 | -9.17 | 1.78 | 2.00 |
| AL23-006-010 | 6.3 | -10.0 | -10.686 | -4.585 | 1.0 | 2.25 |
| AL23-006-012 | 6.3 | -12.5 | -13.528 | -5.731 | 1.5 | 2.44 |
| AL23-006-015 | 6.3 | -15.0 | -16.028 | -6.877 | 1.5 | 2.26 |
| AL23-006-020 | 6.3 | -20.0 | -21.029 | -9.17 | 1.5 | 2.06 |
| AL23-006-025 | 6.3 | -25.0 | -26.028 | -11.462 | 1.5 | 1.94 |
| AL23-006-040 | 6.3 | -40.0 | -41.371 | -18.339 | 2.0 | 2.27 |
| AL23-006-050 | 6.3 | -50.0 | -51.371 | -22.924 | 2.0 | 2.22 |
| AL23-010-012 | 10.0 | -12.5 | -13.528 | -5.731 | 1.5 | 4.43 |
| AL23-010-015 | 10.0 | -15.0 | -16.028 | -6.877 | 1.5 | 3.65 |
| AL23-010-020 | 10.0 | -20.0 | -21.029 | -9.17 | 1.5 | 2.98 |
| AL23-010-025 | 10.0 | -25.0 | -26.028 | -11.462 | 1.5 | 2.64 |
| AL23-010-040 | 10.0 | -40.0 | -41.028 | -18.339 | 1.5 | 2.19 |
| AL23-010-050 | 10.0 | -50.0 | -51.028 | -22.924 | 1.5 | 2.05 |
| AL23-012-020 | 12.7 | -20.0 | -21.029 | -9.17 | 1.5 | 4.05 |
| AL23-012-025 | 12.7 | -25.0 | -26.028 | -11.462 | 1.5 | 3.42 |
| AL23-012-030 | 12.7 | -30.0 | -31.028 | -13.754 | 1.5 | 3.05 |
| AL23-012-040 | 12.7 | -40.0 | -41.028 | -18.339 | 1.5 | 2.63 |
| AL23-012-050 | 12.7 | -50.0 | -51.028 | -22.924 | 1.5 | 2.40 |
| AL23-012-100 | 12.7 | -100.0 | -101.028 | -45.848 | 1.7 | 2.14 |
| AL23-025-035 | 25.4 | -35.0 | -36.372 | -16.047 | 2.0 | 8.24 |
| AL23-025-050 | 25.4 | -50.0 | -51.371 | -22.924 | 2.0 | 5.84 |
| AL23-025-075 | 25.4 | -75.0 | -76.371 | -34.386 | 2.0 | 4.43 |
| AL23-025-100 | 25.4 | -100.0 | -101.371 | -45.848 | 2.0 | 3.79 |
| AL23-025-150 | 25.4 | -150.0 | -151.371 | -68.772 | 2.0 | 3.18 |
| AL23-025-175 | 25.4 | -175.0 | -176.371 | -80.234 | 2.0 | 3.01 |
| AL23-025-200 | 25.4 | -200.0 | -201.38 | -91.70 | 2.0 | 2.88 |
| AL23-025-250 | 25.4 | -250.0 | -251.371 | -114.62 | 2.0 | 2.77 |
| AL23-025-400 | 25.4 | -400.0 | -401.367 | -183.39 | 2.0 | 2.44 |