Plano Convex Lens 20mm Diameter 70mm Focal Length 400 - 700nm
SLB-20-70PM
These are simple lenses having a flat surface on one side and a spherical surface on the other. They are also very close to the form which minimizes spherical aberration for infinite conjugate applications. Our glass lenses are made from the highest grade of optical glass. We have a vast range of different diameters and focal lengths. The lenses listed here are standards. Please call if you do not see the lens you need. We have both larger and smaller lenses and many other diameters to choose from. However, we do try to keep these standards available for quick delivery.
◦There are three types of plano convex lenses available; BK7 for use in visible range to infrared wavelength range.
◦BK7 lenses are also available with three types of anti-reflection coatings, visible wavelength range, in the near-infrared range and in the infrared range.
◦Our lenses are listed by outside diameter and focal length to assist your selection according to required specifications.
◦BK7 lenses are also available with three types of anti-reflection coatings, visible wavelength range, in the near-infrared range and in the infrared range.
◦Our lenses are listed by outside diameter and focal length to assist your selection according to required specifications.
| Name | Plano Convex Lens 20mm Diameter 70mm Focal Length 400 - 700nm |
|---|---|
| Gewicht | 0.0500kgs |
| Standardbeschichtungen verfügbar | Nein |
| Leitfaden |
|
| Anmerkung | - |
| Achtung |
|
| Durchmesser φD | 20mm |
| Brennweite | 70mm |
| Material | BK7 |
| Design Wavelength | 546.1nm |
| Refractive index n<sub>e</sub> | 1.519 |
| Coating | Broadband Multilayer antireflection coating (400 - 700nm) |
| Transmmittance | > Average 99% |
| Laser Damage Threshold | 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz) |
| Clear aperture | 85% of the diameter |
| Surface Quality (Scratch-Dig) | 20-10 |
| Wavelength range of Antireflection Coating | 400 - 700nm |
| Diameter φD | φ20mm |
| Focal length f | 70mm |
| Edge thickness te | 2mm |
| Center thickness tc | 3.4mm |
| Back focal length fb | 67.8mm |
| Radius of curvature r | 36.33mm |
| Centration | ＜1′ |
Auf Lager
SKU
SLB-20-70PM
44,30 €
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These are simple lenses having a flat surface on one side and a spherical surface on the other. They are also very close to the form which minimizes spherical aberration for infinite conjugate applications. Our glass lenses are made from the highest grade of optical glass. We have a vast range of different diameters and focal lengths. The lenses listed here are standards. Please call if you do not see the lens you need. We have both larger and smaller lenses and many other diameters to choose from. However, we do try to keep these standards available for quick delivery.
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