The deviation angle of 90° is thus independent of the orientation of the prism, making it especially important in applications in which the prism orientation cannot be precisely controlled. Due to geometry that total internal reflection cannot be used, the reflecting...[more]

    By adding a wedge, it can be used as Percision Penta Prism. It is often used in Plumb Level, Surveying, Alignment, Rangefinding and Optical Tooling. Specifications Material: BK7 Grade A optical glass Dimension Tolerance: ±0.25mm 90°...[more]