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Dove Prism

 Dove prisms are mainly used as image rotators. As the prism is rotated, the image passing through will rotate at twice the angular rate of the prism. Another application is used as a retroreflector. For this application it perform as a right-angle prism.

Dove prisms have the useful property that they completely invert an image by 180 degrees. If the prism is rotated about its axis the image will rotate at twice the rate of rotation of the prism. Dove prisms provide the most convenient and most precise method of rotating a beam and their long length and square profile make them easy to mount in a cylindrical sleeve.


Specification:
Material: SF11 grade A optical glass or BK7 grade A optical glass
Dimension Tolerance: +0.0, -0.2mm
Clear Aperture: >85% of diametre
Angle Tolerance: <3 arc minutes
Flatness: λ/2 @632.8nm
Surface Quality: 60-40 scratch and dig
Deflection Model: 180° deflection(Standard)
Coating: R<0.25% @1550nm on big face(input and output at the same face)
Bevel: 0.25mmx45deg