|Material||SF11, UVFS, BK7||Clear Aperture||>90%|
|Dimension Tolerance||+0.0/-0.2mm||Surface Quality||60/40 S/D|
|Angle Tolerance||60°±3 arc minutes||Flatness||<λemail@example.com|
|Polished Surface||Three side surfaces polished||Chamfer||Protective<0.5mmx45°|
A kind of dispersion prisms, having three equal 60°angles, which is the most typical type made of high difference of refraction indexes for different wavelength. And equilateral prisms is usually used in wavelength separating applications and spectrum analysis.