The wedge prism is a prism with a shallow angle between its input and output surfaces. This angle is usually 3 degrees or less. Refractionat the surfaces causes the prism to deflect light by a fixed angle. When viewing a scene through such a prism, objects will appear to be offset by an amount that varies with their distance from the prism.
Wedge prism:
Material | BK7, Fused silic |
Dimension Tolerance | +0.0/-0.2mm |
Surface Quality | 60/40 scratch and dig |
Wedge Angle Tolerance | ±1 arc minutes |
Surface Flatness | λ/4 @632.8nm |
Clear Aperture | > 90% |
Protective Beve | <0.25mm x 45° |
Note: Custom sizes and coatings are available upon request.