Standard N-BK7 Right-Angle Prisms
Standard N-BK7 Right-Angle Prisms
N-BK-7 right-angle prisms are polished to λ/8 surface flatness for high precision applications. We offer then with N-BK7 substrates which work great for general laboratory use in the visible and near IR range. Our right-angle prisms are available in a range of sizes from 3.20 mm to 50 mm with a selection of antireflection coatings to meet specific demands.
- General purpose N-BK7 prisms
- λ/8 surface flatness
- 40-20 scratch-dig
- Optional aluminized hypotenuse and AR-coated legs available
- Excellent for beam bending and retroreflection
- 3.2 mm to 50 mm sizes See All Features
| Compare | Description | Drawings, CAD & Specs | Avail. | Price | ||
|---|---|---|---|---|---|---|
 | BRAP10-A Standard N-BK7 Right-Angle Prisms | |||||
 | BRAP10-AV Standard N-BK7 Right-Angle Prisms | |||||
| BRAP11 Standard N-BK7 Right-Angle Prisms | |||||
| BRAP11-A Standard N-BK7 Right-Angle Prisms | |||||
| BRAP11-AV Standard N-BK7 Right-Angle Prisms | |||||
| BRAP12 Standard N-BK7 Right-Angle Prisms | |||||
| BRAP12-A Standard N-BK7 Right-Angle Prisms | |||||
| BRAP12-AV Standard N-BK7 Right-Angle Prisms | |||||
| BRAP13 Standard N-BK7 Right-Angle Prisms | |||||
| BRAP13-A Standard N-BK7 Right-Angle Prisms |
Features
Total Internal Reflection
By means of total internal reflection (TIR), a right-angle prism may be used as a 90° reflector or as a 180° retroreflector. Except for reflection losses from the entry and exit faces, TIR exhibits 100% reflectivity over a very broad wavelength range. The reflecting surface should be coated with protected aluminum if the incidence angle exceeds that acceptable for TIR or if the environment does not allow the reflecting surface to be kept clean, as TIR requires.
Optional Aluminized Hypotenuse
The reflecting surface should be coated with protected aluminum if the incidence angle exceeds that acceptable for TIR or if the environment does not allow the reflecting surface to be kept clean, as TIR requires. The hypotenuse can also be used as a first surface reflector. In this case, if there is an overcoat of black paint, it should be removed with acetone.
N-BK7 for VIS and NIR Applications
Optional AR-coated Legs
The -AV versions of these right-angle prisms feature not only an aluminized hypotenuse but also antireflection-coated legs. Newport's AR.14 broadband coating reduces surface losses over a 430-700 nm wavelength range yet does not affect total internal reflection or the acceptance angle.
RoHS Compliant
