Wedge Prisms – Deviation, Rotation
Wedge prisms are usually round and have two flat sides that are at a small angle to each other. A wedge prism has plane inclined surfaces, it deflects light toward its thicker portion. It can be used individually to deflect a beam to a special angle, The wedge angle determines the amount of the beam. Two wedge prisms work together can assembly an anamorphic prism to correct the elliptical shape of laser beam. By combining two wedge prisms which can be rotate individually, we can direct the input beam to anywhere within the cone angle θd, where θd is 4x the specified angular deviation of one wedge. They are used for beam steering in laser applications. Paralight Optics can make deviation angle from 1deg to 10deg. Other angle can be custom-made upon request.
Material Properties
Function
Combine two to create an anamorphic pair for beam shaping.
Used individually to deviate a laser beam a set angle.
Application
Beam steering, tunable lasers, anamorphic imaging, forestry.
Common Specifications
Transmission Regions & Applications
| Parameters |
Ranges & Tolerances |
|
| Substrate Material |
N-BK7 (CDGM H-K9L) or UVFS (JGS 1) |
|
| Type |
Wedge Prism |
|
| Diameter Tolerance |
+0.00 mm/-0.20 mm |
|
| Thickness |
3 mm on the thinnest edge |
|
| Deviation Angle |
1° - 10° |
|
| Wedge Angle Tolerance |
± 3 arcmin |
|
| Bevel |
0.3 mm x 45° |
|
| Surface Quality (scratch-dig) |
60-40 |
|
| Surface Flatness |
< λ/4 @ 632.8 nm |
|
| Clear Aperture |
> 90% |
|
| AR Coating |
As per the requirements |
|
| Design Wavelength |
CDGM H-K9L: 632.8nm |
JGS 1: 355 nm |
If your project demands any prism we are listing or another type such as littrow prisms, beamsplitter penta Prisms, half-penta prisms, porro prisms, roof prisms, schmidt prisms, rhomhoid prisms, brewster prisms, anamorphic prism pairs, pallin broca prisms, light pipe homogenizing rods, tapered light pipe homogenizing rods, or a more complex prism, we welcome the challenge of solving your design needs.
