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Pellin Broca Prisms
About Lambda Research Optics Inc. (USA)- Type: Prisms & Wedges
- Diameter / Dimension: 11mm - 36mm
- Surface Flatness: < λ / 10
- Surface Quality: <10 / 5
- Angular Deviation: ± 30 arc min
Pellin Broca prisms are constant deviation (90°) dispersing prisms. The input angle is arranged so that total internal reflection occurs at the internal face. This will provide a constant 90° deflection for the beam with dispersion. If the input beam enters the long side of the prism the longer wavelengths will be deviated less.
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