Beam Splitter Penta Prism

Coupletech offers Beamsplitter Penta Prisms. By adding a wedge and with partial reflective coating on first reflective surface,Penta Prism can be used as Beamsplitter. We supply Beam splitter Penta Prism with standard Transmissionreflection (TR) ratio of 2080,5050.Other TR ratio is available upon request. Coupletech also offer Corner Cube Retro-Reflectors have three mutually perpendicular surfaces and a hypotenuse face. Corner Cube Retro-reflectors operates on the principle of total internal reflection (TIR).  A beam entering the effective aperture is reflected by the three roof surfaces and emerges from the entranceexit surface parallel to itself.  This property is independent of orientation of the retro-reflector, within acceptance angle limitations.  For applications in which either the acceptance angle for TIR is exceeded, or the reflecting surfaces can not be kept sufficiently clean for TIR, a metal or dielectric coating can be applied to the reflecting surfaces.