Reasonable Achromatic Lens 20mm Diameter 70.1mm Focal Length
S-DLB-20-70PM
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.
◦Specification except surface quality is almost the same as DLB series. Except when used in high-precision experiment using a laser, this lens is recommended.
◦It is optimized so that focal length gap is small in the visible light range and the aberration is minimized.
◦It is optimized so that focal length gap is small in the visible light range and the aberration is minimized.
| Name | Reasonable Achromatic Lens 20mm Diameter 70.1mm Focal Length |
|---|---|
| Weight | 0.0060lbs |
| Standard Coatings Available | No |
| Guide | - |
| Remark | - |
| Attention |
|
| Image Label | Reasonable Achromatic Lens 20mm Diameter 70.1mm Focal Length |
| Diameter φD | 20mm |
| Focal length | 70.1mm |
| Material | BK7, SF2 |
| Design wavelength | Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm |
| Centration | ＜3′ |
| Coating | Antireflection Coating for the Visible |
| Cement | Ultraviolet Hardened Adhesive |
| Surface Quality (Scratch-Dig) | 60-40 |
| Clear aperture | 90% of the diameter |
| Diameter φD | φ20mm |
| Focal length f | 70.1mm |
| Edge Thickness te | 5.2mm |
| Center Thickness tc | 6.9mm |
| Back focal length fb | 66.7mm |
In stock
SKU
S-DLB-20-70PM
SGD 60.40
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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.
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