Standard Beam Expanders

Product name : Standard Beam Expanders
Description :
Our standard beam expander series covers fused silica lenses from 1.5x up to 20x with wavelengths from 266 nm to 1,980 nm. For collimation, we use an air spaced 2-lens-system in order to minimize aberrations and reach diffraction limited performance. In addition, the divergence of the expanded beam can be adjusted easily. The design is a Galilean type, i.e. there is no internal focus and the system length is short compared to a Kepler type system.