| Products >> Optics >> Pellin Broca Prisms |
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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.
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| ► Material |
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N-BK7, N-SF1 & Fused Silica |
| ► Surface Quality |
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60 - 40 (scratch-dig) |
| ► Dimensional Tolerance |
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+0.0, -0.2 mm |
| ► Surface Flatness |
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λ / 4 |
| ► Clear Aperture |
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80 % |
| ► Angle Tolerance |
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α = 79.5° ± 0.5° , β = 60° ± 1° |
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| Model No: |
Clear Aperture (mm) |
A (mm) |
B (mm) |
H (mm) |
Material |
| HO - PBB - 5 |
5 |
11 |
20 |
6.4 |
N - BK7 |
| HO - PBB - 10 |
10 |
23.5 |
40 |
12.7 |
N - BK7 |
| HO - PBS - 5 |
5 |
11 |
20 |
6.4 |
Fused Silica |
| HO - PBS - 10 |
10 |
23.5 |
40 |
12.7 |
Fused Silica |
| HO - PBF - 5 |
5 |
11 |
20 |
6.4 |
N - SF1 |
| HO - PBF - 10 |
10 |
23.5 |
40 |
12.7 |
N - SF1 |
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| Material other than N-Bk7, NSF1 and Fused silica are available on special request. |
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