An Amici roof prism is a special prism that is meant to deviate a beam of light by ninety degrees while inverting the image. Shaped like a right angled prism whose hypotenuse has been replaced by a 90 ...

The roof or Amici prism deviates or deflects the image through an angle of 90 degrees. It is a right-angle prism whose hypotenuse has been replaced by a 90-degree TIR roof. Glass that does not ...