N-BK7 Penta Prisms
Penta prisms is a specialized optical prism designed to deflect light by a constant 90° angle, independent of the prism’s rotation or alignment errors.
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N-BK7 Right Angle Prisms
Right Angle Prism is deviating or deflecting a beam of light with 90°or 180°. It is often used in telescope, periscope and other optical system.