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  2. Double vision (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Double_vision_(disambiguation)

    Double Vision (1992 film), a television film directed by Robert Knights. Double Vision (2002 film), a film directed by Chen Kuo-fu. Double Vision (company), a Malaysian TV production company. "Double Vision" ( Johnny Bravo), a 2004 episode of Johnny Bravo. Double Vision, a 1993–96 Cartoon Network programming block.

  3. Perger prism - Wikipedia

    en.wikipedia.org/wiki/Perger_prism

    A Perger prism or Perger–Porro prism system is a prism, that is used to invert (rotate by 180°) an image. The special feature of this prism is that, like a traditional double Porro prism system, it manages this with only four beam deflections and has neither a roof edge with the accompanying phase correction problems, a mirrored surface or ...

  4. Schmidt–Pechan prism - Wikipedia

    en.wikipedia.org/wiki/Schmidt–Pechan_prism

    A Schmidt–Pechan prism is a type of optical prism used to rotate an image by 180°. These prisms are commonly used in binoculars as an image erecting system. The Schmidt–Pechan prism makes use of a roof prism section (from the German: "Dachkante", lit. roof edge ). Binoculars designs using Schmidt–Pechan prisms can be constructed more compactly than ones using Porro or Uppendahl roof and ...

  5. Aberrations of the eye - Wikipedia

    en.wikipedia.org/wiki/Aberrations_of_the_eye

    The eye, like any other optical system, suffers from a number of specific optical aberrations. The optical quality of the eye is limited by optical aberrations, diffraction and scatter. [1] Correction of spherocylindrical refractive errors has been possible for nearly two centuries following Airy's development of methods to measure and correct ocular astigmatism. It has only recently [when ...

  6. Double Vision (1971 video) - Wikipedia

    en.wikipedia.org/wiki/Double_Vision_(1971_video)

    Double Vision. (1971 video) Double Vision is one of the earliest and best known video works by American (born 1937) artist Peter Campus. [1] Running 14 minutes and 22 seconds, it is a single channel video created with two video cameras fed through a mixer, providing the effect of a photographic double exposure.

  7. Pressure prism - Wikipedia

    en.wikipedia.org/wiki/Pressure_prism

    Pressure prism. A pressure prism is a way of visually describing the variation of hydrostatic pressure within a volume of fluid. When variables of fluid density, depth, gravity, and other forces such as atmospheric pressure are charted, the resulting figure somewhat resembles a prism .

  8. Double Vision (Foreigner album) - Wikipedia

    en.wikipedia.org/wiki/Double_Vision_(Foreigner...

    Double Vision is the second studio album by the British-American rock band Foreigner, released on 20 June 1978 by Atlantic Records. Recorded between December 1977 and March 1978, it was Foreigner's only album co-produced by Keith Olsen and the last recording with bass guitarist Ed Gagliardi who would be later replaced by Rick Wills .

  9. Prism fusion range - Wikipedia

    en.wikipedia.org/wiki/Prism_fusion_range

    The prism fusion range ( PFR) or fusional vergence amplitude is a clinical eye test performed by orthoptists, optometrists, and ophthalmologists to assess motor fusion, specifically the extent to which a patient can maintain binocular single vision ( BSV) in the presence of increasing vergence demands. Motor fusion is largely accounted to ...