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Variable Beam Expanders

Galilean type of Beam expansion
Wavelength ranges from 400 to 700 nm

Holmarc’s variable beam expanders are based on Galilean design. This 5-element diffraction limited design allows continuous beam expansion within the specified range. The expansion ratio can be adjusted by rotating the zoom control. Holmarc’s variable beam expanders are equipped with broadband AR coated lenses and aluminium casings.



    Wavefront distortion :     < λ / 4
    Transmission :     > 96%
    Wavelength range :     400 - 700nm
    Damage threshold :     > 500 mW / cm2
    Surface quality :     40 - 20 ( Scratch-dig )
    AR coating, ravg :     < 0.5% @ 400-700 nm

Variable beam expanders with custom expansion ranges are available upon special requests.



Model No. Expansion Range Max. Input
Beam Diameter (1/e2)
Price ($)
HO-VBE-01 1x - 3x 5 mm 630.00
HO-VBE-02 1x - 6x 5 mm 1,068.00
HO-VBE-03 2x - 5x 4 mm 907.00
HO-VBE-04 5x - 10x 4 mm 1,439.00

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