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Demi Onde Achromatiques

ACHRO HALFWAVE

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Demi onde fonctionnant sur tout le spectre visible. Idéale Holographie en couleurs. Diametre 1/2"= 12.7mm.

High contrast half waveplate for the visible bandwidth. Rotate linear polarized light or retard linear polarized light by 1/2 of a wave. A glass laminated component with optically fused multi layer polymers sandwiched in between BK-7 windows. Anti-reflection coatings 400-900nm on surfaces.

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Birefringent Material Polymer, sandwiched between BK-7 substrates
Recommended Wavelength Range λ/2, over visible region from 425 – 750nm
Surface Quality 40-20 Scratch-Dig
Substrates BK-7, grade-A, fine annealed
AR Coating R ≤ 0.65% loss per surface (normal incidence) average,
BBAR 400-900nm wavelength range
Size 25.4mm outer diameter, 80% clear aperture (20mm)
Acceptance Angle ± 15 degrees
Unit Thickness 4.35mm +/- .20mm
Optic Axis Stability ≤ 2 degree
Wavefront Distortion λ/4 @ 632.8nm
Temperature Range 20° C to 40° C
Wedge ≤ 2 minutes
Damage Threshold CW: 500 Watt/cm2
Vis Pulsed: .3 J/cm2 10 nsec pulses @ 532nm