BK7 | Penta prism can deviate an incident beam without inverting or reversing to 90°. It is commonly used in Plumb Level, Surveying, Alignment, Range finding and Optical Tooling. | |||
Size(mm) | Part No. | |||
1 min. deviation | 30 sec. deviation | 10 sec. deviation | ||
5x5 | PTP12005 | PTP0105 | PTP1105 | |
10x10 | PTP1210 | PTP0110 | PTP1110 | |
15x15 | PTP1215 | PTP0115 | PTP1115 |
Material: | BK7 Grade A optical glass |
Dimension Tolerance: | +0,-0.2mm |
Bevel: | 0.2 mm to 0.5 mm x 45 ° |
Clear Aperture: | >80% |
Surface Quality: | 60-40 scratch and dig |
Flatness: | l/4 at 632.8 nm |
Reflectivity: | R > 95% per face |
90 ° deviation tolerance: | As Table |