Right Angle Reflecting Prism with Protected Al Coating

Specifications

Prism Type: Right Angle Prism (45-45-90 degrees), Hypotenuse Metal-Coated

Leg Size (A = B): 1.0 mm - 50.0 mm (custom >= 0.5 mm available)

Hypotenuse Length: A x √2

Material: N-BK7 (standard), H-K9L, UV Fused Silica, SF11, CaF2, ZnSe, Si

Dimensional Tolerance: +/- 0.05 mm (standard), +/- 0.02 mm (high precision)

Angle Tolerance: +/- 2 arcmin (+/- 30 arcsec / +/- 5 arcmin available on request)

Surface Quality: 20-10 / 40-20 Scratch-Dig (MIL-PRF-13830B)

Surface Flatness: Lambda/4 @ 632.8 nm (Lambda/10 irregularity optional)

Hypotenuse Coating (Standard):

Protected Aluminum (Al + SiO2/MgF2): Ravg > 87 percent 450-650 nm, > 85 percent 400-800 nm
Protected Silver (Ag + dielectric): Ravg > 97 percent 450-2000 nm (optional)
Protected Gold (Au): Ravg > 96 percent 700 nm - 10 um (optional, for NIR/LWIR substrates)