4Lasers unmounted penta prisms provide 90° beam and image deviation without inverting or reversing the image. Penta prisms reflecting surfaces are aluminized with inconel and black paint overcoat, while input and output faces are uncoated (refer to the drawing). An important feature is that these prisms do not have to be precisely aligned to operate properly. Therefore, these five-sided reflecting design prisms are essential for applications, where precise 90° deviation is required. Antireflective coatings have to be applied in order to optimize the optical transmission for a particular application. Contact us for coating service, custom solutions and pricing.

Main features

■ Fabricated from high-quality BK7 glass

■ 90° ± 1 arcmin deviation

■ Does not invert, reverse beam or image

■ <λ/10@632,8 nm surface flatness over clear aperture

■ Antireflective coatings on input and output faces, custom substrate material and dimensions upon request