Dove Prisms – Rotation
Dove prism is a truncated version of right angle prism. A beam entering parallel to the hypotenuse face is reflected internally and emerges parallel to its incident direction. Dove prisms are used to rotate images as image rotators. As the prism is rotated around a longitudinal axis, the image passing through will rotate at an angle twice that of the prism. Sometimes dove prisms are also used for 180° reflection.
Material Properties
Function
Uncoated: rotate an image by twice the prism rotation angle; image is left-handed.
Coated: reflect any beam entering the prism face back onto itself; image is right-handed.
Application
Interferometry, astronomy, pattern recognition, imaging behind detectors or around corners.
Common Specifications
Transmission Regions & Applications
| Parameters |
Ranges & Tolerances |
| Substrate Material |
N-BK7 (CDGM H-K9L) |
| Type |
Dove Prism |
| Dimension Tolerance |
± 0.20 mm |
| 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 |
Uncoated |
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.
