Pellin Broca prism is a constant (90°) deviation dispersive prism. These prisms separate light beam of multiple wavelengths to single wavelength. Pellin Broca prism's incidence angle is Brewster's angle, which minimizes the reflection losses in P-polarized light. Hence, these are known as Brewster's angle prisms as well. Holmarc offers Pellin Broca Prisms in three different substrate materials.
Materials | : | BK7 or equivalent, N-SF1 & UV fused sIlica |
Surface Quality | : | 40 - 20 ( scratch-dig ) |
Dimensional Tolerance | : | + 0.0, -0.2 mm |
Surface flatness | : | λ / 4 @ 632.8 nm |
Clear aperture | : | 80 % |
Angle tolerance | : | α = 79.5° ± 0.5°, β = 60° ± 1° |
Model No. | Clear Aperture ( mm ) | A ( mm ) | B ( mm ) | H ( mm ) | Material | Price ($) |
HO-PBB-5 | 5 | 11 | 20 | 6.4 | BK7 or equivalent |
58.00 |
HO-PBB-10 | 10 | 23.5 | 40 | 12.7 | 77.00 | |
HO-PBS-5 | 5 | 11 | 20 | 6.4 | Fused Silica | 91.00 |
HO-PBS-10 | 10 | 23.5 | 40 | 12.7 | 139.00 | |
HO-PBF-5 | 5 | 11 | 20 | 6.4 | N - SF1 | 76.00 |
HO-PBF-10 | 10 | 23.5 | 40 | 12.7 | 118.00 | |
Material other than BK7, NSF1 and Fused silica are available on special request. |
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