... cubeThese prisms have 3 mirror surfaces making angles of 90?to each other, juxtaposedto form the corner of a cube ... diagonal.All beams, despite of incident direction, are reflected back to the originaldirection. Optical SpecificationMaterialBK7,SF8,SF6 etc or specified by ... Aperture>80%~95%Bevel0.3mm×45°~0.1mm×45°CoatingAccroding to customer's requirementOur Products are fully customisable, your further ...