Pentaprisms
A pentaprism has two important properties: a 90° beam deviation without left/right reversal or top/bottom inversion; and a 90° angle between incident and output beams in the plane of incidence even when the beam is not normal to the entrance face. Reflective coatings are required on its reflecting surfaces.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material [General] | BK7,etc. |
| Material [General] | BK7,Fused Silica,etc. |
| Material [High Precision] | BK7,etc. |
| Material [High Precision] | BK7,Fused Silica,etc. |
| Dimension [General] | 2.5×2.5~100.0x100.0 |
| Dimension [High Precision] | 2.5x2.5~100.0x100.0 |
| Dimension Tolerance [General] | ±0.2 mm |
| Dimension Tolerance [General] | +0.2 mm |
| Dimension Tolerance [High Precision] | +0.05 mm |
| Dimension Tolerance [High Precision] | ±0.05 mm |
| 90°Deviation Tolerance [General] | <1arc min |
| 90°Deviation Tolerance [High Precision] | <3 arc sec |
| Flatness（@633nm） [General；@633nm；@633nm）] | λ/2 |
| Flatness（@633nm） [High Precision；@633nm；@633nm）] | λ/4 |
| Reflection（@400-700nm） [General；@400-700nm；@400-700nm）] | R>90% |
| Reflection（@400-700nm） [High Precision；@400-700nm；@400-700nm）] | R>95% |
| Surface Quality [General] | 60/40 |
| Surface Quality [High Precision] | 10/5 |
| Surface Quality [High Precision] | 20/10 |
| Coating [General] | Uncoatde,AR Coated,etc. |
| Coating [General] | Uncoatde,AR Coating,etc. |
| Coating [High Precision] | Uncoatde,AR Coated,etc. |
| Coating [High Precision] | Uncoatde, AR Coating,etc. |
| 90°Deviation Tolerance [General] | <1 min |
| 90°Deviation Tolerance [High Precision] | <3 sec |
| Beamsplitter Transmission/Reflection Ratio [General] | 20/80+5 or 50/50+5 |
| Beamsplitter Transmission/Reflection Ratio [High Precision] | 20/80+5or 50/50+5 |
Applications
Datasheet
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Supplier Information
Related Products
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Dimensional Tolerance: ±0.01～0.1mm Angle Tolerance: ±30″～5′ Parallel difference: 1′～5′
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Dimensional Tolerance: ±0.01～0.1mm Angle Tolerance: ±30″～5′ Parallel difference: 1′～5′
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Dimensional Tolerance: ±0.01～0.15mm Angle Tolerance: ±1′～5′ Parallel difference: 3′～5′
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Dimensional Tolerance: ±0.01～0.1mm Angle Tolerance: ±30″～5′ Parallel difference: 1′～5′
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Material: K9 or other Dimensional Tolerance: ±0.1 Angle Tolerance: 5 ″
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