N-BK7 Wedge Prisms
Dimension: 10-200mm
Surface Accuracy: 60-40 or better
Size Tolerance: +/-0.1mm or better
Angle Tolerance: +/-3’or 30”
Coating: Optional
The wedge prism is a prism with a shallow angle between its input and output surfaces. This angle is usually 3 degrees or less. Refraction at the surfaces causes the prism to deflect light by a fixed angle. When viewing a scene through such a prism, objects will appear to be offset by an amount that varies with their distance from the prism.
The wedge prism is a prism with a shallow angle between its input and output surfaces. This angle is usually 3 degrees or less. Refraction at the surfaces causes the prism to deflect light by a fixed angle. When viewing a scene through such a prism, objects will appear to be offset by an amount that varies with their distance from the prism.
REFRACTION OF THE WEDGE PRISM
For a wedge prism in air, rays of light passing through the prism are deflected by the angle δ, which is approximately given by where n is the index of refraction of the prism material, and α is the angle between the prism’s surfaces.
FUNCTION OF WEDGE PRISM
- Used Individually to Deviate a Laser Beam a Set Angle
- Combine Two to Create An Anamorphic Pair for Beam Shaping
APPLICATION OF THE WEDGE PRISM
- 1.Beam Steering
- 2.Tunable Lasers
- 3.Anamorphic Imaging
- 4.Forestry
COMMON SPECIFICATIONS OF OUR WEDGE PRISM:
|
Angle Tolerance (arcsec) |
±30 |
|
Bevel |
Protective bevel as needed |
|
Coefficient of Thermal Expansion CTE (10-6/°C) |
7.1 |
|
Design Wavelength DWL (nm) |
632.8 |
|
Image Orientation |
Beam Deviation |
|
Substrate |
N-BK7 or other optical material |
|
Surface Flatness |
λ/10 |
|
Surface Quality |
80-50/20-10 |
