Right-angle prism GCL-0304 series

Amici roofBK7

This type of prism consists of a roof edge produced upon the long reflecting face of a right-angle prism and is also called Amici roof prism. Like a right-angle prism, it reflects an image by 90°, but inverts the image simultaneously. It is commonly used as an erecting system in telescopes. • Beam Deviation: 90˚±5' • Dimension Tolerance: ±0.15 • Flatness: λ/4 at reflection surface λ/2 at transmission surface • Roof Angle Tolerance: ±5", ±15'' • Surface Quality: 60-40 scratch-dig • Clear Aperture: 90% surface area • Coatings: Entrance and exit surfaces are 1/4 wave MgF2 coating at 550nm for 0°angle of incidence. Roof surfaces are uncoated.