Positive Achromatic Lenses
描述
Parameter
| Diameter | 3~150mm |
| Diameter Tolerance | +/-0.1mm, +/-0.05mm |
| Thickness Tolerance ( center, edge) | +/-0.1mm, +/-0.05mm |
| Focus Length Tolerance | +/-1% ~0.5% |
| Surface Accuracy | 1lambda , 1/4 lambda |
| Surface Quality | 60-40, 40-20 or better |
| Centration | 5’~1′ |
| Clear Aperture | 85% ~95% |
| Chamfer | 0.1~0.3mm x 45degree |
| Coating | Accroding to customer’s requirement |
