Unmatched performance in broad band, achromatic retardation at the expense of bulk. BK7 Fresnel Rhomb Retarder Specifications: | Material: | BK7 Grade A optical glass | | Dimension Tolerance: | +0.0/-0.2mm | | Clear Aperture: | >80% | | Flatness: | λ/10@ 632.8nm | | Surface Quality: | 20-10 scratch and dig | | Wavelength Range: | 400-2000 nm for BK7 Glass | | Bevel: | 0.2mm to 0.5mm | | Free Aperture: | 10x10 mm |
λ/4 single element | | | | | | | | | λ/4 dual element | λ/2 dual element | | | |
Part No. | Retardation | Design | A(mm) | B(mm) | H(mm) |
|---|
50.260.00086 | λ/4 | single element | 35.0 | 40.0 | 37.0 | 50.260.00087 | λ/2 | dual element | 64.0 | 40.0 | 37.0 | 50.260.00112 | λ/4 | dual element | 140.0 | 40.0 | 37.0 |
Fused Silica Fresnel Rhomb Retarder Specifications: | Material: | UV Grade Fused Silica | | Dimension Tolerance: | +0.0/-0.2mm | | Clear Aperture: | >80% | | Flatness: | λ/10@ 632.8nm | | Surface Quality: | 20-10 scratch and dig | | Wavelength Range: | 200-2000 nm for Fused Silica | | Bevel: | 0.2mm to 0.5mm |
λ/4 single element | | | | | | | | | λ/4 dual element | λ/2 dual element | | | |
Part No. | Retardation | Design | A(mm) | B(mm) | H(mm) |
|---|
50.260.00088 | λ/4 | single element | 35.0 | 40.0 | 37.0 | 50.260.00089 | λ/2 | dual element | 64.0 | 40.0 | 37.0 | 50.260.00113 | λ/4 | dual element | 140.0 | 40.0 | 37.0 |
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Optics 
