Ross Optical Bi-Concave Lenses
Description
Bi-concave lenses have two inward curved surfaces. These lenses have a negative focal length. Our catalog bi-concave lenses have an identical curvature on both sides of the lens and are therefore symmetric. At unit conjugation, coma and distortion are cancelled out due to the symmetry. They are used to diverge incoming light or increase the focal length of an existing optical system.
Ross Optical Bi-Concave Lenses
Specifications |
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|---|---|
| Material: | BK7, FS, UVFS, CaF2, ZnSe, Si, Ge, H-K9L, BaF2, MgF2, H-ZF13 |
| Diameter: | 100 mm |
| Focal Length: | Custom mm |
| Edge Thickness, Te: | Custom mm |
| Lens Type: | Plano-Concave |
Applications
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Frequently Asked Questions
Bi-concave lenses are used to diverge incoming light or increase the focal length of an existing optical system.
The diameter range of the bi-concave lenses is 5.00-100.00 mm.
The surface quality of the bi-concave lenses is 40-20 for diameters between 5.00-25.00 mm and 60-40 for diameters between 25.01-100.00 mm.
The focal length tolerance of the bi-concave lenses is ±2%.
The bi-concave lenses can be uncoated or you can specify your coating from the available options in the coating chart.