Prisms
Penta PrismsPenta prism deviates a beam through 90 degree without inverting and reversing it. The image from a penta prism is of the same orientation as the object. It is widely applied in measuring instruments, alignment systems, etc. Standard and broadband antireflection coatings are available upon request, see our standard optics components below.
Specifications
| Parameter | Precision | Standard |
| Dimensional Tolerance: | +0/-0.1 mm | +0/-0.15 mm |
| Surface Figure at 632.8 nm(over 90% diameter): | λ / 8 | λ / 4 |
| Beam Deviation: | 30 arc sec. | 3 arc min. |
| Surface Quality: | 40-20 | 60-40 |
| Clear Aperture: | > 85 % of dimensions | > 85 % of dimensions |
| Coating: | custom | custom |
Penta Prisms
| Leg A | Leg B | Leg C | Material | Part No. | |
| A (mm) | B (mm) | C (mm) | Name | Precision | Standard |
| 10.00 | 10.00 | 10.00 | BK7 | KWPS 001 | KWPG 001 |
| 12.70 | 12.70 | 12.70 | BK7 | KWPS 002 | KWPG 002 |
| 15.00 | 15.00 | 15.00 | BK7 | KWPS 003 | KWPG 003 |
| 20.00 | 20.00 | 20.00 | BK7 | KWPS 004 | KWPG 004 |
| 25.00 | 25.00 | 25.00 | BK7 | KWPS 005 | KWPG 005 |
| 25.40 | 25.40 | 25.40 | BK7 | KWPS 006 | KWPG 006 |
| 50.80 | 50.80 | 50.80 | BK7 | KWPS 007 | KWPG 007 |