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Double Concave Lenses
Optola offers wide range of double concave lenses.
Custom design double concave lenses are available upon request.
Add to cart for your request
You can specify desired parameters during checkout.
| Material | BK7 or UV fused silica |
| Focal Length Tolerance | ±1% @589nm |
| Design Wavelength | 589nm |
| Centration | ≤3′ |
| Diameter Tolerance | +0/-0.1mm |
| Clear Aperture | ＞central 90% of diameter |
| Center Thickness Tolerance | ±0.1mm |
| Center Thickness | 2.5mm，nominal |
| Surface Quality | 20/10（UVFS）/ 40/20（BK7） |
| Surface Accuracy | ≤ 1.5λ power，λ/2 irregularity（UVFS） ≤ 1.5λ power，λ/4 irregularity（BK7） |
| Chamfers | 0-0.8mm face width×45°±15° |
| Part Number | Dimension A(mm) |
| NPBC-063-λ | 6.35 |
| NPBC-127-λ | 12.7 |
| NPBC-150-λ | 15.0 |
| NPBC-200-λ | 20.0 |
| NPBC-254-λ | 25.4 |
| 441.6nm | 488-514.5nm | 532nm | 632.8nm | 670nm |
| 780nm | 830nm | 1064nm | 1300nm | 1550nm |
