T-PS919 - N-BK7 Right-Angle Prism, Uncoated, L = 50 mm
Product Drawing
Choose an N-BK7 Right-Angle Prism if the additional benefits of fused silica are not required. N-BK7 provides excellent transmittance in the visible and near infrared portions of the spectrum. Please see the Graphs tab for a graph of index of refraction vs wavelength for N-BK7. Additionally, N-BK7 is a viable choice for UV applications down to 350 nm. For applications that demand maximum transmission, please see our AR-coated N-BK7 prisms below.
Our PS911K Knife-Edge prism offers the same features as our standard N-BK7 right angle prisms but features an unbeveled, precision 90° edge between the two legs. This means that the clear aperture reaches across this surface, making this prism ideal for applications where a larger clear aperture is beneficial.
| Item # |
Material |
L |
X |
Angle Tolerance |
Dimensional Tolerance |
| T-PS605 |
UV Fused Silica |
3 mm |
4.2 mm |
±10 arcmin |
±0.2 mm |
| T-PS609 |
5 mm |
7.1 mm |
±3 arcmin |
±0.2 mm |
| T-PS610 |
10 mm |
14.1 mm |
±3 arcmin |
±0.2 mm |
| T-PS614 |
12.5 mm |
17.7 mm |
±3 arcmin |
±0.2 mm |
| T-PS615 |
15 mm |
21.2 mm |
±3 arcmin |
±0.2 mm |
| T-PS608 |
20 mm |
28.3 mm |
±3 arcmin |
±0.2 mm |
| T-PS611 |
25 mm |
35.4 mm |
±3 arcmin |
±0.2 mm |
| T-PS612 |
40 mm |
56.6 mm |
±3 arcmin |
±0.2 mm |
| T-PS613 |
60 mm |
84.9 mm |
±3 arcmin |
±0.2 mm |
| T-PS905 |
N-BK7 |
3 mm |
4.2 mm |
±10 arcmin |
±0.1 mm |
| T-PS909 |
5 mm |
7.1 mm |
±3 arcmin |
±0.1 mm |
| T-PS910 |
10 mm |
14.1 mm |
±3 arcmin |
±0.1 mm |
| T-PS914 |
12.5 mm |
17.7 mm |
±3 arcmin |
±0.2 mm |
| T-PS915 |
15 mm |
21.2 mm |
±3 arcmin |
±0.2 mm |
| T-PS908 |
20 mm |
28.3 mm |
±3 arcmin |
±0.1 mm |
| T-PS911 |
25 mm |
35.4 mm |
±3 arcmin |
±0.1 mm |
| T-PS912 |
40 mm |
56.6 mm |
±3 arcmin |
±0.1 mm |
| T-PS919 |
50 mm |
70.7 mm |
±3 arcmin |
±0.1 mm |
| T-PS913 |
60 mm |
84.9 mm |
±3 arcmin |
±0.1 mm |
| T-PS703 |
CaF |
10 mm |
14.1 mm |
±10 arcmin |
+0.0/-0.3 mm |
| T-PS706 |
12.5 mm |
17.7 mm |
±10 arcmin |
±0.2 mm |
| T-PS707 |
15 mm |
21.2 mm |
±10 arcmin |
±0.2 mm |
| T-PS704 |
25 mm |
35.4 mm |
±10 arcmin |
+0.0/-0.3 mm |
| T-PS701 |
ZnSe |
10 mm |
14.1 mm |
±10 arcmin |
+0.0/-0.3 mm |
| T-PS702 |
25 mm |
35.4 mm |
±10 arcmin |
+0.0/-0.3 mm |
