Dove Prism is a form of prism invented by H. W. Dove. It resembles half of a common right-angle prism in which a ray entering parallel to hypotenuse face is reflected internally at that face and emerges parallel to its incident direction. One of the incident rays emerges along a continuation of its incident direction, and if the prism is rotated about that ray through some angle, the image rotates through twice that angle. A Dove Prism must be used in parallel light.
180° deflection prism has another application. The prism is used as a retroreflector. For this application it perform as a right angle prism that is used 180° deflection.
Specification:
Material：see the table
Dimension Tolerance：+0.0, -0.2mm
Clear Aperture：> 85%
Angle Tolerance：< 3 arc minutes
Flatness：λ/2 @ 632.8nm
Surface Quality：60-40 scratch and dig
Bevel：from 0.2mm to 0.5mm x 45°
Deflection Model：180° deflection
Coating：R < 0.25% @1550nm on big face
(input and output at the same face)
Part No. | Material | Model | A(mm) | B(mm) | h(mm) |
INF-DP101 | SF11 | 180° | 9.34 | 2.6 | 1.3 |
INF-DP102 | SF11 | 180° | 14.0 | 5.0 | 2.6 |
INF-DP201 | BK7 | Dove | 21.1 | 5.0 | 5.0 |
INF-DP202 | BK7 | Dove | 42.3 | 10.0 | 10.0 |
INF-DP203 | BK7 | Dove | 63.4 | 15.0 | 15.0 |
INF-DP103 | BK7 | 180° | 80.0 | 20.0 | 20.0 |
INF-DP101 | SF11 | 180° | 9.34 | 2.6 | 1.3 |
Custom designs for other sizes and coatings are also available upon request.
