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Waveplate(retardation plates or phase shifters)are made from materials which exhibit birefraction index.The velocities of the extraordinary and ordinary rays through the birefringent materials vary inversely with their refractive indexesThe difference in velocities gives rise to a phase difference when the two beams recombine.In the case of an incident linearly polarized beam this is given by α+2 nd(ne-no)/λ,where α is wavelength.At any specific wavelength ,the phase difference is governed by the thickness of the retarder



●Measuring instrument

Optical device


●High Damage Threshold

●Wide Wavelength Bandwidth

●Wide Angle Acceptance

●Optiona Wavelength

●Low price

●High transmittance

●High accuracy


●Material:Fused Silica

●Optiona Wavelength:260nm~1800nm

●Size Tolerance:±0.05~±0.2


●Suface Quality:20/10

●Clear Aperture:>90%



●Other size or retardations,waves available upon request

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