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Dispersing Prisms

Dispersing Prisms
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Material BK7, UVFS
Dimensional tolerances +0/-0.2 mm
Clear Aperture >80%
Angle tolerance ±2 arcmin
Surface quality 40-20 S-D
Surface flatness <λ/4 @ 632.8 nm
Protective chamfers <0.25 mm x 45°
Coatings Call us
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Attention! You can customise this product to your needs.
Dispersing prisms have three 60° angles therefore they are also referred to as equilateral prisms. It provides advantage over diffraction gratings where higher orders diffraction effect is unwanted. Typical applications is wavelength angular separation, where the prism is placed in a beam path to refract the beam twice. Common scheme is to use the prism in minimal deviation angle, which is achieved by aligning the wavelength of interest to travel in parallel to the prism base. This ensures, that angles of incident and refracted beams are equal in respect to corresponding surfaces. This alignment provides benefit of maximum clear aperture and least overall reflection loss for p-polarization.
varna Separates light by wavelength

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Items per page page
Coating Dimensions, A x L, mm Material Delivery Product ID Price Action
Uncoated 12.7 x 12.7 BK7 Request 1-PD-1-0125 Request REQ
Uncoated 25.4 x 25.4 BK7 Request 1-PD-1-0250 Request REQ
Uncoated 12.7 x 12.7 UVFS Request 1-PD-2-0125 Request REQ
Uncoated 25.4 x 25.4 UVFS Request 1-PD-2-0250 Request REQ


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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