BEX Series Manually Adjustable Variable-Magnification Beam Expander BEX 1x-4x Steadfast
Our adjustable beam expanders meet high-precision requirements for laser material processing. All versions are available for wavelengths of 355nm, 515...540nm and 1030...1080nm. The BEX 1x-4x fused-silica variable beam expander offers high image quality in a compact length, with continuous adjustment between expansion factors of 1x and 4x. The BEX 1x-4x Steadfast beam expander uses a mechanical design that guides moving optics stably and linearly. This reduces the effects of mechanical manufacturing irregularities and improves beam stability when magnification or divergence changes. Settings are easily locked, effects such as vibration or system acceleration are minimized, and maintenance and setup are straightforward. The BEX 2x-10x variable beam expander is designed for applications requiring increased beam diameter and has an especially large zoom range. All versions have continuously adjustable zoom factors between 2-10. The BEX 1x-8x fused-silica variable beam expander provides diffraction-limited image quality throughout its magnification range. Optimized AR coatings ensure maximum transmission and minimum thermal effects, with durability and high damage threshold for high-power laser applications.
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