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  2. Wedge prism - Wikipedia

    en.wikipedia.org/wiki/Wedge_prism

    Wedge prism. The wedge prism is a prism with a shallow angle between its input and output surfaces. This angle is usually 3 degrees or less. Refraction at the surfaces causes the prism to deflect light by a fixed angle. When viewing a scene through such a prism, objects will appear to be offset by an amount that varies with their distance from ...

  3. Selective laser melting - Wikipedia

    en.wikipedia.org/wiki/Selective_laser_melting

    Selective laser melting ( SLM) is one of many proprietary names [1] for a metal additive manufacturing (AM) technology that uses a bed of powder with a source of heat to create metal parts. Also known as direct metal laser sintering ( DMLS ), the ASTM standard term is powder bed fusion ( PBF ). PBF is a rapid prototyping, 3D printing, or ...

  4. List of laser articles - Wikipedia

    en.wikipedia.org/wiki/List_of_laser_articles

    Liposuction. Liquid crystal. Liquid crystal laser. List of laser applications. List of laser types. Lloyd's mirror. Lockheed Martin Sniper XR. Logitech VX Revolution.

  5. Dove prism - Wikipedia

    en.wikipedia.org/wiki/Dove_prism

    A Dove prism. The path of a beam through a Dove prism. A Dove prism is a type of reflective prism which is used to invert an image. Dove prisms are shaped from a truncated right-angle prism. The Dove prism is named for its inventor, Heinrich Wilhelm Dove. Although the shape of this prism is similar to the shape described by a Dovetail joint ...

  6. Paper machine - Wikipedia

    en.wikipedia.org/wiki/Paper_machine

    A Fourdrinier paper machine. A paper machine (or paper-making machine) is an industrial machine which is used in the pulp and paper industry to create paper in large quantities at high speed. Modern paper-making machines are based on the principles of the Fourdrinier Machine, which uses a moving woven mesh to create a continuous paper web by ...

  7. Reflector (cipher machine) - Wikipedia

    en.wikipedia.org/wiki/Reflector_(cipher_machine)

    Reflector (cipher machine) A reflector, in cryptology, is a component of some rotor cipher machines, such as the Enigma machine, that sends electrical impulses that have reached it from the machine's rotors, back in reverse order through those rotors. The reflector simplified using the same machine setup for encryption and decryption, but it ...

  8. Littrow prism - Wikipedia

    en.wikipedia.org/wiki/Littrow_prism

    Description. Littrow (optical) prisms typically have the shape of a (geometric) prism with a 30°/60°/90° right triangular base, [1] [2] equivalent to half an equilateral triangle. Typically, they are coated with a reflective film coating on the surface opposite the 60° angle. This design was devised by Otto von Littrow (1843—1864).

  9. Flatbed editor - Wikipedia

    en.wikipedia.org/wiki/Flatbed_editor

    A flatbed editor is a type of machine used to edit film for a motion picture. [1] Picture and sound rolls load onto separate motorized disks, called "plates." Each set of plates moves forward or backward separately or locked together to maintain synchronization between picture and sound. A prism reflects the film image onto a viewing screen ...