| Prod. No. | f | x | y | R | tc | te | Unit Price |
| 250-120 | -4.00 | 12.5 | 6.0 | -2.070 | 2.5 | 3.0 | * |
| 250-140 | -6.35 | 25.0 | 6.0 | 3.282 | 5.0 | 6.2 | * |
| 250-160 | -8.00 | 12.5 | 7.2 | -4.135 | 3.0 | 4.1 | * |
| 250-180 | -10.00 | 12.5 | 10.0 | -5.170 | 4.0 | 5.0 | * |
| 250-200 | -12.70 | 25.0 | 11.0 | 6.563 | 5.0 | 7.3 | * |
| 250-220 | -19.00 | 25.0 | 16.0 | 9.819 | 5.0 | 8.5 | * |
| 250-240 | -25.40 | 60.0 | 16.0 | 13.127 | 5.0 | 7.4 | * |
| 250-260 | -38.10 | 60.0 | 26.0 | 19.690 | 5.0 | 9.5 | * |
| 250-280 | -40.00 | 60.0 | 26.0 | 20.672 | 5.0 | 9.2 | * |
| 250-300 | -50.00 | 60.0 | 26.0 | 25.840 | 5.0 | 8.2 | * |
| 250-320 | -60.00 | 60.0 | 26.0 | 31.008 | 5.0 | 7.6 | * |
| 250-340 | -76.00 | 60.0 | 26.0 | 39.380 | 5.0 | 7.0 | * |
| 250-360 | -80.00 | 60.0 | 26.0 | 41.344 | 5.0 | 6.9 | * |
| 250-380 | -100.00 | 60.0 | 26.0 | 51.680 | 5.0 | 6.5 | * |
| 250-450 | -150.00 | 60.0 | 26.0 | 77.520 | 5.0 | 6.0 | * |
| 250-500 | -200.00 | 60.0 | 26.0 | 103.360 | 5.0 | 5.8 | * |
| 250-550 | -250.00 | 60.0 | 26.0 | 129.200 | 5.0 | 5.6 | * |
| 250-600 | -300.00 | 60.0 | 26.0 | 155.040 | 5.0 | 5.5 | * |
Precision Grade Plano-Concave Cylindrical Lens - NBK-7
Specifications: Plano-Concave Cylindrical Lens
- All dimensions are in millimeters
- Surfaces Marked “P” polished, all others ground
- Focal Length: f ± 2%
- Surface Accuracy: λ/2 in the y direction and λ/4 per centimeter
in the x direction
- Flat side to be λ/4 per centimeter over entire surface
- Design wavelength (λo): 587.6 nm
- Clear Aperture: 90% of central polished area
- Bevel: Slight protective
- Scratch/Dig: 60/40
- Material: NBK-7 (Bk-7)
