Additional information
| Dimension | D =12.7mm & L =12.7mm |
|---|---|
| Material | BK7 Grade A, UV Grade Fused Silica |
Porro Prisms (PRP)
180° beam folding prism
Porro prisms are sections of a right angle prism. They are specifically intended for 180° folding. These Porro prisms are circular in cross section and have a λ / 10 polished input face. An incoming beam is totally internally reflected at the roof faces and returned in the opposite direction within 10 arc sec.
| Material: | BK7A UV Fused Silica |
| Surface Flatness: | < λ / 10 @ 633 nm |
| Surface Quality: | <10 / 5 |
| Dimension Tolerance: | < + 0.00 / – 0.20 mm |
| Angular Deviation | <10 arc sec |
| Clear Aperture: | >85% in central circular dimension |
| Bevel: | 0.3 mm (typical) x 45° No bevel on the apex of the prism (sharp knife edge) |
Porro Prisms (PRP)
