Precision Wedge Prisms
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Laser quality beam steering wedges
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Beam deviation from 1 to 10 degrees
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Can be used in pairs for continuous angular adjustment
These wedge prisms are intended for steering laser beams. A beam normally incident on the perpendicular surface of the wedge will be deviated according to the anglein the table below. By selecting the appropriate wedge it is simple to create a precise beam deviation without affecting other beam parameters. If two wedges are used together with the sloping surfaces in close proximity it is possible to produce a continuous variation of beam deviation by counter-rotating the wedges. The angular adjustment obtainable in this way ranges from zero to 2 times the angle in the table. The prisms are manufactured from grade A optical glass. These wedge prisms are offered uncoated or with optional Anti-Reflection coatings.
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| Diameter (mm) | Ceter Thickness (mm) | Beam Deviation (deg) | Wedge Angle (deg) | Material | Surface Flatness | Surface Quality | Dimension tolerance | Angle deviation | Clear Aperture | Bevel |
|---|---|---|---|---|---|---|---|---|---|---|
| 25.0 | 3.4 | 1 | 1.93 | BK7 | λ/10 | 20 - 10 | ±0.2mm | ±1arcmin | 90% | 0.2mm x 45° typical |
| 25.0 | 3.8 | 2 | 3.86 | BK7 | λ/10 | 20 - 10 | ±0.2mm | ±1arcmin | 90% | 0.2mm x 45° typical |
| 25.0 | 4.7 | 4 | 7.67 | BK7 | λ/10 | 20 - 10 | ±0.2mm | ±1arcmin | 90% | 0.2mm x 45° typical |
| 25.0 | 5.5 | 6 | 11.37 | BK7 | λ/10 | 20 - 10 | ±0.2mm | ±1arcmin | 90% | 0.2mm x 45° typical |
| 25.0 | 6.3 | 8 | 14.95 | BK7 | λ/10 | 20 - 10 | ±0.2mm | ±1arcmin | 90% | 0.2mm x 45° typical |
| 25.0 | 7.1 | 10 | 18.13 | BK7 | λ/10 | 20 - 10 | ±0.2mm | ±1arcmin | 90% | 0.2mm x 45° typical |