Meniscus Lens - Negative BK7
- Plano Convex Lens - BK7
- Double Convex Lens - BK7
- Plano Convex Lens - Fused Silica
- Double Convex Lens - Fused Silica
- Plano Concave Lens - BK7
- Double Concave Lens -BK7
- Plano Concave Lens - Fused Silica
- Double Concave Lens - Fused Silica
- Meniscus Lens - Positive BK7
- Meniscus Lens - Negative BK7
- Achromatic Lens - Possive
- Achromatic Lens - Negative
- Cylindrical Lens - BK7
- Cylindrical Lens - Fused Silica
- Plano Concave Lens - CaF2
- Plano Convex Lens - CaF2
- Plano Convex Lens - Sapphire Lenses
- Plano Concave Lens - Sapphire
The Negative Meniscus Lenses are a convex-concave lens, but is thinner at the center than at the edges. Otherwise description is similar to Plano Concave lenses.
Specifications:
| Material: | BK7 |
| Design Wavelength: | 546.1nm, n=1.518721 |
| Diameter Tolerance: | +0.0/-0.1mm |
| Paraxial Focal Length: | ±2% |
| Centration: | 3 arc minutes |
| Surface Figure : | l/4 @ 633 nm |
| Surface Quality: | 60/40 |
| Clear Aperture: | >80% |
| Bevel: | <0.25mm X 45° |
| Coating: | Uncoated |
| Item# | F(mm) | f(mm) | R1 | R2 | Tc | Te | Fb |
| MNN1-201 | 25.4 | -100.0 | 89.95 | 32.51 | 3.0 | 4.68 | -98.79 |
| MNN1-202 | 25.4 | -150.0 | 89.95 | 41.21 | 3.0 | 4.11 | -148.06 |
| MNN1-203 | 25.4 | -200.0 | 89.95 | 47.64 | 3.0 | 3.82 | -197.82 |
| MNN1-204 | 25.4 | -250.0 | 235.5 | 83.18 | 3.5 | 4.13 | -248.62 |
| MNN1-205 | 25.4 | -300.0 | 235.5 | 93.33 | 3.5 | 4.03 | -299.04 |
| MNN1-206 | 25.4 | -400.0 | 235.5 | 109.65 | 3.5 | 3.90 | -397.33 |
| MNN1-207 | 25.4 | -500.0 | 235.5 | 122.74 | 3.5 | 3.82 | -496.94 |
| MNN1-208 | 25.4 | -1000.0 | 600.00 | 277.16 | 3.0 | 3.1 | -995.30 |
