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Home > Prisms > 14RAP - Right-Angle Prisms
Right-Angle Prisms
Can work as internal or external reflectors or as retro-reflectors
Various dielectric coatings can be deposited upon request

These prisms are used to direct beams at 90 degrees by using hypotenuse face in total internal reflection (TIR). Right angle prisms are often preferable to an inclined mirror in applications involving severe acoustic or inertial loads, because they are easier to mount, and deform much less than mirror in response to external mechanical stress. As long as acceptance angle limitations for TIR from the roof faces are not exceeded, the right angle prisms can serve as a retro reflector, turning beams back to the original direction.

Right-Angle Prisms
MaterialSize of a face A x B90° angle tolerancePyramidal toleranceOrdering code
BK75.0 x 5.0 mm2 arcmin1 arcmin14RAP-1-1-1
BK710.0 x 10.0 mm2 arcmin1 arcmin14RAP-2-1-1
BK710.0 x 10.0 mm5 arcsec30 arcsec14RAP-2-30-1
BK712.5 x 12.5 mm2 arcmin1 arcmin14RAP-3-1-1
BK712.5 x 12.5 mm5 arcsec30 arcsec14RAP-3-30-1
BK715.0 x 15.0 mm2 arcmin1 arcmin14RAP-4-1-1
BK715.0 x 15.0 mm5 arcsec30 arcsec14RAP-4-30-1
BK720.0 x 20.0 mm2 arcmin1 arcmin14RAP-5-1-1
BK720.0 x 20.0 mm5 arcsec30 arcsec14RAP-5-30-1
BK725.0 x 25.0 mm2 arcmin1 arcmin14RAP-6-1-1
BK725.0 x 25.0 mm5 arcsec30 arcsec14RAP-6-30-1
UVFS5.0 x 5.0 mm2 arcmin1 arcmin14RAP-1-1-2
UVFS10.0 x 10.0 mm2 arcmin1 arcmin14RAP-2-1-2
UVFS10.0 x 10.0 mm5 arcsec30 arcsec14RAP-2-30-2
UVFS12.5 x 12.5 mm2 arcmin1 arcmin14RAP-3-1-2
UVFS12.5 x 12.5 mm5 arcsec30 arcsec14RAP-3-30-2
UVFS15.0 x 15.0 mm2 arcmin1 arcmin14RAP-4-1-2
UVFS15.0 x 15.0 mm5 arcsec30 arcsec14RAP-4-30-2
UVFS20.0 x 20.0 mm2 arcmin1 arcmin14RAP-5-1-2
UVFS20.0 x 20.0 mm5 arcsec30 arcsec14RAP-5-30-2
UVFS25.0 x 25.0 mm2 arcmin1 arcmin14RAP-6-1-2
UVFS25.0 x 25.0 mm5 arcsec30 arcsec14RAP-6-30-2
  Standard Specifications
MaterialBK7, UVFS
Dimension Tolerances±0.25 mm
Surface Quality40-20 scratch & dig
Clear Aperture80% of the face size
Flatnessλ/4 @ 633 nm
90° Angle Tolerance±2 arcmin (general type)
±5 arcsec (precision type)
Pyramidal Tolerance±1 arcmin (general type)
±30 arcsec (precision type)
CoatingsNone. Please refer to Coatings Section

Related Products and Accessories
Two Angular Fine Adjustment Mounts
5OM37-50 Two Angular Fine Adjustment Mounts
 Prism/Optics Mount
5PM57 Prism/Optics Mount

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