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PRODUCTS » Prism » Porro Prism

Porro prism is a type of reflection prism which can be used to alter the orientation of an image. Light enters the large face of the prism, then hits on the roof, by total internal reflection twice from the roof, the beam exits again through the large face. An image traveling through a Porro prism is rotated by 180deg but not inverted.

Porro prisms are variants of the standard 90° prism but used as a pair to displace and invert a beam. Porro prisms are widely used in binoculars where they orientate the image correctly and reduce the total length of the binoculars by a small amount.

This is the general standards we offer our customers, UNION OPTICS can supply other prisms meet your requirements, for detail information, please contact us.
  Porro Prism
    Porro Prism
Material:  BK7, Fused Silica
Dimension Tolerance:  +0/-0.1mm
Angle Tolerance:  5 arc sec – 3 arc min
Surface Quality:  40/20 scratch and dig
Flatness:  λ/4@632.8nm
Bevel:  0.2mmX45deg
Coating:  As requested
Amici Prism  Wedge prism    
Note: Usually, the material we used is Chinese material unless assigned. If you can not confirm which material is the right one, please contact us.

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