parameter for coating:
Broadband antireflection film-0°
Lower than 1.3% reflection over wavelength ranges 400~ 750 nm;
Lower than 0.5% reflecton over wavelength ranges  430~650 nm.

Broadband antireflection film-45°
Lower than 3.5% Rs over wavelength ranges 400~ 750 nm;
Lower than 2.5% Ravg over wavelength ranges 400~ 750 nm;
Lower than 1.5% Rp over wavelength ranges 400~ 750 nm.

parameter for prism:
Material: H-K9L,H-BaK7,etc;
Surface quality:40-20/20-10;
Dimensional tolerance:±0.05mm；
Surface flatness：λ/2；
Angle tolerance:±2'.