Bi-concave lens
Optosigma Corporation
* Symmetrically concave negative lenses
* Focal lengths from -9.7 to -299.5mm
* Diameters from 10.0 to 50.8mm
* Complete range of optional Anti-Reflection coatings available
* For additional sizes see Micro Optics
These biconcave lenses are used when a very high negative power is required. They can be used in a multi-element system or alone to produce a diverging cone or a virtual image.
