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title: Catalog RFQ Right Angle Prisms
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# Right Angle Prisms

Right angle prisms are optical elements having at least three polished faces inclined relative to each other at 45-90-45 degrees. They can be used as total internal reflectors, hypotenuse face reflectors, retroreflectors and 90 degrees beam benders.

| Material | BK7 |
| --- | --- |
| Dimensions | MM |
| Dimensional Tolerance | ±0.1 mm |
| Surface Quality | 60-40 |
| Surface Accuracy | 0.5 wave |
| Angle Tolerance | ±3 arc min |
| Bevel | 0.3mm x 45° |
| AR Coating | Entrance and exit surfaces - 1/4 wave MgF2 @ 550nm |
| Hypotenuse | Protected Aluminum |
| ** All dimensions are in mm* |  |