Penta prisms can deflect light 90º while keeping the original image unchanged and will not produce an inverted or reverse image.
A penta prism is a five-sided prism. Slightly moving the prism will not have much impact on the reflected light, so it can be used to define the right angle of an optical system.
The reflection in the penta prism is not caused by complete internal reflection. Since the beam enters at less than the critical angle, the two reflective surfaces are coated with reflective materials to create a mirror reflection effect, while the two transmission surfaces are coated with anti-reflective coatings. to reduce reflections. The fifth side of the penta prism is not used optically.
Bote provides K9 pentagonal prisms with sizes ranging from 5mm to 40mm. The reflective surface is coated with aluminum + black paint for protection, and the incident and exit surfaces are coated with a single layer of MgF2 anti-reflection coating.
Bote Optics is a professional supplier of optical components in Singapore. We can customize a variety of penta prisms that meet your requirements according to your needs. If you have any questions or needs, you can contact us and we will serve you wholeheartedly.
| Materials | Fine annealed H-K9L |
| Dimension Tolerance | +0.0/-0.2mm |
| IRR | λ/[email protected] |
| Surface Smoothness | 40/20-60/40 |
| Bevel | ＜0.25mmX45° |
| Coating | Reflective surface aluminum plated + black paint protection, The entrance and exit surfaces are coated with a single layer of MgF2 anti-reflection coating |