Quartz Glass Round Wedge Prisms

Item No: W-20210407A

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.


  • Material: N-BK7, sapphire glass, quartz glass, etc.
  • Dimension: 10-200mm
  • Surface Accuracy: 60-40 or better
  • Size Tolerance: +/-0.1mm or better
  • Angle Tolerance: +/-3’or 30”
  • Coating: Optional
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    Additional Information

    What is wedge 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.

    VY Optoelectronics Co.,Ltd. can produce all types of glass prism lenses,  the coating or painting could be available by custom orders.

    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
    BevelProtective bevel as needed
    Coefficient of Thermal Expansion CTE (10-6/°C)7.1
    Design Wavelength DWL (nm)632.8
    Image OrientationBeam Deviation
    SubstrateN-BK7 or other optical material
    Surface Flatnessλ/10
    Surface Quality80-50/20-10

    Prisms from VY

    VY has lots of experience in producing and exporting of the optical prisms, with more than 10 years’ experience, we have made a wide range of optical prism with variety of materials, shapes, design, etc.

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