N-BK7 rectangular prism
- Beam deflection of 90°/45°/135°
- Angular tolerance of a few arc seconds
90° prisms are commonly used to redirect light. Depending on the orientation of the prism, the image is mirrored vertically or horizontally. Rectangular prisms can also be used in combination to shift images or light beams. The rectangular prisms can be manufactured with narrow tolerances and high precision. They have a narrow angular tolerance of a few arc seconds and are made of various optical glasses (N-BK7, N-BaK4, quartz or Zerodur). They are ideal for applications in the visible range.