Prisms

Product Catalog 2014

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Dove Prisms

Dove Prisms

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Material BK7, UVFS
Dimension tolerances +0.0/-0,2 mm
Clear Aperture >80%
Angle Tolerance < 3 arcmin
Surface Quality 40/20 S/D
Surface flatness λ/4 @ 632.8 nm
Protective chamfers <0,25 mm x 45 deg
Coatings None. Please refer to the Coating Section
Price list
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Attention! You can customise this product to your needs.
Description Metrology Optics Protection
Dove prisms are shaped from a truncated right-angle prism. A beam of light 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, and because only one reflection takes place, the image's handedness is changed to the opposite sense. Dove prisms have an interesting property - when they are rotated along their longitudinal axis, the transmitted image rotates at twice the rate of the prism. It is very important that the application must be used with parallel or collimated beam and the large square reflective surface should be kept very clean. Another application is used as a retroreflector. For this application it performs as a right-angle prism.
Altechna metrology lab applies following product inspection:
Visual inspection – surface quality evaluation according to MIL 13830 and ISO 10110 standards
Dimensions – measurement of geometrical dimensions, as diameter, thickness, etc.
Angle (Goniometer)*
Pyramidal error (Goniometer)
*(…) used equipment

Optics Protection

Polymer film First Contact™ is a unique product designed for laser optics protection, preservation and cleaning. For all sorts of optical items it serves as a protection layer from damages during shipping, long term storage, environment changes, etc. and removes all dust and other contamination after the film is removed from the optical surface. It is absolutely safe for almost all types of optics and optical coatings.*

  • Protects against scratching, abrasion, dirt, and water damage. Also protects against corrosion caused by water vapor, oxygen, and sulfur.
  • Cleans the surface, removes particulates and organic contaminants.
  • Leaves no residue.
  • Leaves no hazardous waste.
  • Safe to store for up to 4 years (period may be extended depending on storing conditions).
  • Comes off in one piece.
  • Does not lift metal from metal films.
  • Safe with temperatures up to 200° C.
  • Environmentally friendly

 * Protective polymer cannot be used with optical components sensitive to acetate.

Price – 3 EUR per item (price includes coating service and polymer)

If you want to order protective coating please select "Optics Protection" in the catalog list.

Removal instructions:

Removal instructions Removal instructions 2

Holding the sticker slowly peel the film starting from the edge. If necessary place the optic in its corresponding mount prior to removing the film.

Technical information:

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You can customise this product to your needs. If you do not find suitable specifications for your application please contact us for custom solution.

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