Pentaprism, Material: N-BK7 OPPE-20
A pentaprism precisely deflects an incident beam by 90° without inverting or reversing the image. The deflection angle remains the same regardless of the prism's orientation relative to the beam, so slight prism movements have little effect on the reflected beam. Pentaprisms are valuable in applications requiring precise 90° beam deflection without precise prism orientation. Their monolithic design is more stable than a system comprising two mirrors. The reflecting surfaces have an aluminum coating with black protection; the entrance and exit faces are uncoated. JCOPTIX offers pentaprisms in two sizes. Contact technical support for custom sizes or other special requirements.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Optical element material | N-BK7 |
| Operating Wavelength | 450-2000 nm |
| Dimensions [L / W (Corresponding to Original Values, Respectively)] | L=20 mm，W=28.3 mm |
| Clear Aperture Dimension | 14 mm × 14 mm |
| Beam Deflection Angle [Central Angle in °; Angular Tolerance in arcmin] | 90° ± 4 arcmin |
| Coating | Reflecting Faces Aluminum Coated; Reflecting Faces and the Plane Intersecting Both Reflecting Faces Covered with Chromium-Doped Nickel-Iron Alloy and a Black Paint Protective Layer |
| Dimensional Tolerance | ± 0.1 mm |
| Angle Tolerance | ± 1 arcmin |
| Surface Flatness [@633 nm] | λ/10 |
| Surface quality (scratch/dig) | 40/20 |
Key Features
Datasheet
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Supplier Information
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