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  2. Amici roof prism - Wikipedia

    en.wikipedia.org/wiki/Amici_roof_prism

    An Amici roof prism, named for its inventor, the Italian astronomer Giovanni Battista Amici, is a type of reflecting prism used to deviate a beam of light by 90° while simultaneously inverting the image. It is commonly used in the eyepieces of telescopes as an image erecting system. It is sometimes called an Amici prism or right angle roof ...

  3. Prism sight - Wikipedia

    en.wikipedia.org/wiki/Prism_sight

    A Trijicon 3.5x35 ACOG prism sight with a Trijicon RMR reflex sight mounted on the top.. A prism sight or prismatic sight, sometimes also called prism scope or prismatic scope, is a type of telescopic sight which uses a reflective prism for its image-erecting system, instead of the series of relay lenses found in traditional telescopic sights.

  4. Porro–Abbe prism - Wikipedia

    en.wikipedia.org/wiki/Porro–Abbe_prism

    A Porro–Abbe prism. A Porro–Abbe prism (sometimes called a Abbe–Porro prism), named for Ignazio Porro and Ernst Abbe, is a type of reflection prism used in some optical instruments to alter the orientation of an image. It is a variant of the more common double Porro prism configuration. [1]

  5. V/H/S/94 - Wikipedia

    en.wikipedia.org/wiki/V/H/S/94

    V/H/S/94 is a 2021 American found footage horror anthology film, and the fourth installment in the V/H/S franchise.The film originates from a screenplay written by David Bruckner, and Brad Miska, [1] with segments directed by franchise returnees Simon Barrett and Timo Tjahjanto, in addition to newcomers Jennifer Reeder, Ryan Prows and Chloe Okuno.

  6. Triangular prism - Wikipedia

    en.wikipedia.org/wiki/Triangular_prism

    In geometry, a triangular prism or trigonal prism [1] is a prism with 2 triangular bases. If the edges pair with each triangle's vertex and if they are perpendicular to the base, it is a right triangular prism. A right triangular prism may be both semiregular and uniform. The triangular prism can be used in constructing another polyhedron.

  7. Rectangular cuboid - Wikipedia

    en.wikipedia.org/wiki/Rectangular_cuboid

    If two opposite faces become squares, the resulting one may obtain another special case of rectangular prism, known as square rectangular cuboid. [b] They can be represented as the prism graph. [3] [c] In the case that all six faces are squares, the result is a cube. [4]

  8. Optical coating - Wikipedia

    en.wikipedia.org/wiki/Optical_coating

    In a roof prism without a phase-correcting coating, s-polarized and p-polarized light each acquire a different geometric phase as they pass through the upper prism. When the two polarized components are recombined, interference between the s-polarized and p-polarized light results in a different intensity distribution perpendicular to the roof ...

  9. Polarizer - Wikipedia

    en.wikipedia.org/wiki/Polarizer

    A Wollaston prism. A Wollaston prism is another birefringent polarizer consisting of two triangular calcite prisms with orthogonal crystal axes that are cemented together. At the internal interface, an unpolarized beam splits into two linearly polarized rays which leave the prism at a divergence angle of 15°–45°.