Plano-concave lens element BK7UV
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Characteristics
- Geometry/curvature
- plano-concave
- Material
- BK7
- Optical characteristics
- UV
Description
Thorlabs' selection of plano-concave lenses, including BK7, SF11, UV-fused silica, and CaF2, diverge a collimated beam to a virtual focus and are commonly used in a Galilean-type beam expanders. Plano-Concave lenses have a negative focal length and negative spherical aberration, which can be used to balance out aberrations of other lenses in the system.
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