T-BPD254S-G - Polka Dot Beamsplitter, 1" x 1", B270 Glass
These Polka Dot Beamsplitters are made from B270 glass and provide high transmission over the 350 nm - 2.0 µm spectral range. They can be used from 0 to 45° AOI with only negligible changes to the reflected and transmitted intensity. Light should be incident on the aluminum-coated side to maximize the reflected intensity.
Product Drawing
| Specifications |
| Available Sizes |
Ø1", Ø2", or 1" Square |
| Beamsplitting Ratio |
50% ± 5% |
Minimum Beam Diameter for 50/50 Split |
2 mm |
| Material |
B270 |
| Wavelength Range |
350 nm - 2.0 µm |
| Coating Pattern |
Square-Coated Apertures 0.0040" (100 µm) Sides, 0.0022" (56 µm) Spacing |
| Clear Aperture |
>90% Diameter (Round Optics) >90% Length and Height (Square Optics) |
| Thickness |
1.5 mm (Nominal) |
| Dimensional Tolerance |
+0.0 / -0.5 mm |
| Angle of Incidence |
0 to 45° |