Wedged Substrate BK7 30mm Diameter 0.5 Degree Wedge Angle λ/20
WSB-30C05-20-0.5
Wedged substrates can separate the reflected beam by the front and back surface of the substrates by the slight wedge angle. They can be used as a reference test plate for interferometers and beam samplers.
◦It can also be used as a prism to refract at a small angle. Beam deflection angle δ can be calculated refractive index n, from the wedge angle α.
δ = sin−1( n sinα) − α ≒( n − 1) α
◦In BK7, 0.52 times the angle of the wedge, and in synthetic fused silica, 0.46 times the angle of the wedge. (Visible range, normal incidence)
δ = sin−1( n sinα) − α ≒( n − 1) α
◦In BK7, 0.52 times the angle of the wedge, and in synthetic fused silica, 0.46 times the angle of the wedge. (Visible range, normal incidence)
Name | Wedged Substrate BK7 30mm Diameter 0.5 Degree Wedge Angle λ/20 |
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Weight | 0.0090lbs |
Standard Coatings Available | No |
Guide |
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Remark | - |
Attention |
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Image Label | Wedged Substrate BK7 30mm Diameter 0.5 Degree Wedge Angle λ/20 |
Diameter φD | 30mm |
Material | BK7 |
Material | BK7 |
Diameter φD | φ30mm |
Thickness t | 5mm |
Surface Flatness | λ/20 |
Wedge angle | 0.5°±5′ |
Surface Quality (Scratch-Dig) | 10−5 |
In stock
SKU
WSB-30C05-20-0.5
SGD 237.20
Wedged substrates can separate the reflected beam by the front and back surface of the substrates by the slight wedge angle. They can be used as a reference test plate for interferometers and beam samplers.