A Dove prism is a type of reflective prism which is used to invert an image. Dove prisms are shaped from a truncated right-angle prism. The Dove prism is named for its inventor, Heinrich Wilhelm Dove. Although the shape of this prism is similar to the shape described by a Dovetail joint, the etymology of the two is unrelated.
A Dove prism.The path of a beam through a Dove prism.
A beam of light travelling parallel to the longitudinal axis, entering one of the sloped faces of the prism undergoes total internal reflection from the inside of the longest (bottom) face and emerges from the opposite sloped face. Images passing through the prism are flipped (mirrored), and because only one reflection takes place, the image is also inverted but not laterally transposed.
Refraction at the entrance and exit surfaces results in substantial image astigmatism when used in convergent light. Thus the Dove prism is used almost exclusively for images appearing at infinity.[1]
If the flat hypotenuse surface of a Dove prism is cut into a roof shape, the result is an Amici roof prism.
Rotationedit
A reflection in one axis of a plane is always equivalent to a reflection and rotation in two other axes (with the angle between the source and image being twice the angle between the source and reflection axis of the prism). Thus, Dove prisms can be used to create beam rotators, which have applications in fields such as interferometry, astronomy, and pattern recognition.
Lesso and Padgett (1999) and Moreno et al. (2003, 2004) found that there is a change in the state of polarization of a beam of light on passing through a rotated dove prism. Polarization rotation in the infrared has been known for much longer. (Johnston 1977) The polarization-transforming properties of dove prisms are of particular interest because they can influence the signal measurement of the scientific instrument.
^Smith, Warren (1990). Modern Optical Engineering (2nd ed.). McGraw-Hill. p. 102. ISBN978-0-07-059174-5.
Lesso, J. P.; Padgett, M. J. (1999). "Dove prisms and polarised light". Journal of Modern Optics. 46 (2): 175–179. Bibcode:1999JMOp...46..175P. doi:10.1080/09500349908231263.
Moreno, I. (2004). (PDF). Applied Optics 43 pp. 3373-3381. ISSN 0003-6935. Archived from the original (PDF) on 2010-12-27. Retrieved 2009-09-15.
Moreno, I; et al. (2003). "Polarization transforming properties of Dove prisms". Optics Communications. 220 (4–6): 257–268. Bibcode:2003OptCo.220..257M. doi:10.1016/S0030-4018(03)01423-8.
Johnston, L. H. (1977). "Broadband polarization rotator for the infrared". Applied Optics. 16 (4): 1082–4. Bibcode:1977ApOpt..16.1082J. doi:10.1364/AO.16.001082. PMID 20168639.
January 01, 1970
dove, prism, type, reflective, prism, which, used, invert, image, shaped, from, truncated, right, angle, prism, named, inventor, heinrich, wilhelm, dove, although, shape, this, prism, similar, shape, described, dovetail, joint, etymology, unrelated, path, beam. A Dove prism is a type of reflective prism which is used to invert an image Dove prisms are shaped from a truncated right angle prism The Dove prism is named for its inventor Heinrich Wilhelm Dove Although the shape of this prism is similar to the shape described by a Dovetail joint the etymology of the two is unrelated A Dove prism The path of a beam through a Dove prism A beam of light travelling parallel to the longitudinal axis entering one of the sloped faces of the prism undergoes total internal reflection from the inside of the longest bottom face and emerges from the opposite sloped face Images passing through the prism are flipped mirrored and because only one reflection takes place the image is also inverted but not laterally transposed Refraction at the entrance and exit surfaces results in substantial image astigmatism when used in convergent light Thus the Dove prism is used almost exclusively for images appearing at infinity 1 If the flat hypotenuse surface of a Dove prism is cut into a roof shape the result is an Amici roof prism Rotation editA reflection in one axis of a plane is always equivalent to a reflection and rotation in two other axes with the angle between the source and image being twice the angle between the source and reflection axis of the prism Thus Dove prisms can be used to create beam rotators which have applications in fields such as interferometry astronomy and pattern recognition Lesso and Padgett 1999 and Moreno et al 2003 2004 found that there is a change in the state of polarization of a beam of light on passing through a rotated dove prism Polarization rotation in the infrared has been known for much longer Johnston 1977 The polarization transforming properties of dove prisms are of particular interest because they can influence the signal measurement of the scientific instrument See also editDelta prism Polarization rotatorReferences edit Smith Warren 1990 Modern Optical Engineering 2nd ed McGraw Hill p 102 ISBN 978 0 07 059174 5 Lesso J P Padgett M J 1999 Dove prisms and polarised light Journal of Modern Optics 46 2 175 179 Bibcode 1999JMOp 46 175P doi 10 1080 09500349908231263 Moreno I 2004 Jones matrix for image rotation prisms PDF Applied Optics 43 pp 3373 3381 ISSN 0003 6935 Archived from the original PDF on 2010 12 27 Retrieved 2009 09 15 Moreno I et al 2003 Polarization transforming properties of Dove prisms Optics Communications 220 4 6 257 268 Bibcode 2003OptCo 220 257M doi 10 1016 S0030 4018 03 01423 8 Johnston L H 1977 Broadband polarization rotator for the infrared Applied Optics 16 4 1082 4 Bibcode 1977ApOpt 16 1082J doi 10 1364 AO 16 001082 PMID 20168639 Retrieved from https en wikipedia org w index php title Dove prism amp oldid 1186021665, wikipedia, wiki, book, books, library,
