Reasonable Achromatic Lens / S-DLB
An economic general use achromatic lens suitable for an optical system, which does not require high surface quality imaging such as a microscope lens or telescope lens.
Common Specifications
| Material | BK7, SF2 |  |
|---|---|---|
| Design Wavelength | Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm | Centration | ＜3′ |
| Coating | Antireflection coatingtd | |
| Cement | Ultraviolet Hardened Adhesive | |
| Surface Quality (Scratch-Dig) | 60 - 40 | |
| Clear Aperture | 90% of the diameter | |
| Laser Damage Threshold | 0.3J/cm2(Laser pulse width 10ns, repetition frequency 20Hz) |
| Schematic | Outline Drawing |
|---|---|
 |
 |
| φ10～φ20 | |||||||
|---|---|---|---|---|---|---|---|
| Part Number | Diameter φD |
Focal Length f |
Edge Thickness te |
Center Thickness tc |
Back Focal length fb |
||
| S-DLB-10-20PM | φ10mm | 20.0mm | 5.1mm | 6.7mm | 16.6mm | ||
| S-DLB-10-25PM | φ10mm | 25.0mm | 4.9mm | 6.1mm | 22.1mm | ||
| S-DLB-10-40PM | φ10mm | 40.0mm | 4.6mm | 5.3mm | 37.5mm | ||
| S-DLB-10-50PM | φ10mm | 50.0mm | 4.4mm | 5.0mm | 47.5mm | ||
| S-DLB-10-100PM | φ10mm | 100.5mm | 4.2mm | 4.5mm | 98.1mm | ||
| S-DLB-15-25PM | φ15mm | 25.2mm | 6.0mm | 8.8mm | 20.7mm | ||
| S-DLB-15-30PM | φ15mm | 30.1mm | 5.7mm | 8.0mm | 26.0mm | ||
| S-DLB-15-40PM | φ15mm | 40.1mm | 5.2mm | 6.9mm | 36.5mm | ||
| S-DLB-15-50PM | φ15mm | 50.1mm | 5.0mm | 6.3mm | 47.1mm | ||
| S-DLB-15-80PM | φ15mm | 79.9mm | 4.7mm | 5.5mm | 77.1mm | ||
| S-DLB-15-100PM | φ15mm | 100.0mm | 4.5mm | 5.2mm | 97.3mm | ||
| S-DLB-20-30PM | φ20mm | 30.6mm | 6.8mm | 10.9mm | 24.9mm | ||
| S-DLB-20-40PM | φ20mm | 40.1mm | 6.2mm | 9.2mm | 35.3mm | ||
| S-DLB-20-50PM | φ20mm | 50.2mm | 5.7mm | 8.1mm | 46.0mm | ||
| S-DLB-20-60PM | φ20mm | 60.2mm | 5.4mm | 7.4mm | 56.6mm | ||
| S-DLB-20-70PM | φ20mm | 70.1mm | 5.2mm | 6.9mm | 66.7mm | ||
| S-DLB-20-80PM | φ20mm | 79.9mm | 5.1mm | 6.6mm | 76.6mm | ||
| S-DLB-20-100PM | φ20mm | 99.5mm | 4.9mm | 6.1mm | 96.4mm | ||
| S-DLB-20-120PM | φ20mm | 120.3mm | 4.7mm | 5.7mm | 117.3mm | ||
| φ25～φ30 | |||||||
|---|---|---|---|---|---|---|---|
| Part Number | Diameter φD |
Focal Length f |
Edge Thickness te |
Center Thickness tc |
Back Focal length fb |
||
| S-DLB-25-50PM | φ25mm | 50.1mm | 7.1mm | 10.9mm | 44.9mm | ||
| S-DLB-25-70PM | φ25mm | 69.9mm | 6.3mm | 9.0mm | 65.3mm | ||
| S-DLB-25-100PM | φ25mm | 100.2mm | 5.9mm | 7.7mm | 96.5mm | ||
| S-DLB-25-120PM | φ25mm | 119.8mm | 5.6mm | 7.2mm | 116.2mm | ||
| S-DLB-25-150PM | φ25mm | 149.6mm | 5.5mm | 6.7mm | 146.2mm | ||
| S-DLB-30-60PM | φ30mm | 60.3mm | 8.1mm | 12.6mm | 53.9mm | ||
| S-DLB-30-100PM | φ30mm | 100.7mm | 6.8mm | 9.5mm | 96.0mm | ||
| S-DLB-30-120PM | φ30mm | 120.1mm | 6.6mm | 8.8mm | 115.7mm | ||
| S-DLB-30-150PM | φ30mm | 150.0mm | 6.3mm | 8.1mm | 146.0mm | ||
| S-DLB-30-200PM | φ30mm | 200.2mm | 6.0mm | 7.3mm | 196.4mm | ||
| S-DLB-30-300PM | φ30mm | 300.4mm | 5.7mm | 6.6mm | 296.9mm | ||
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