When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Op art - Wikipedia

    en.wikipedia.org/wiki/Op_art

    Op art, short for optical art, is a style of visual art that uses optical illusions. [1] Op artworks are abstract, with many better-known pieces created in black and white. Typically, they give the viewer the impression of movement, hidden images, flashing and vibrating patterns, or swelling or warping.

  3. File:EIA Resolution Chart 1956.svg - Wikipedia

    en.wikipedia.org/wiki/File:EIA_Resolution_Chart...

    The following other wikis use this file: Usage on be-tarask.wikipedia.org Відэа; Usage on cs.wikipedia.org Televizní zkušební obrazec; Usage on fr.wikipedia.org

  4. Richard Allen (abstract artist) - Wikipedia

    en.wikipedia.org/wiki/Richard_Allen_(abstract...

    Allen was also a talented printmaker. He consistently made graphics alongside his painting and drawing. These works included Silk Screen Op art graphics back in the 60s, the "Iconocross" series of black cross derived prints, brightly coloured silk screens and Geometric abstraction, and a small edition of "White Painting" Lithographs.

  5. Openclipart - Wikipedia

    en.wikipedia.org/wiki/Openclipart

    Openclipart, also called Open Clip Art Library, is an online media repository of free-content vector clip art.The project hosts over 160,000 free graphics and has billed itself as "the largest community of artists making the best free original clipart for you to use for absolutely any reason".

  6. List of optical illusions - Wikipedia

    en.wikipedia.org/wiki/List_of_optical_illusions

    The dress was a viral phenomenon, which was either seen as blue and black or as white and gold. Its true colours were eventually confirmed to be blue and black. [2] Ebbinghaus illusion: The Ebbinghaus illusion, or Titchener circles, is an optical illusion of relative size perception. The two orange circles are exactly the same size; however ...

  7. Optical vortex - Wikipedia

    en.wikipedia.org/wiki/Optical_vortex

    A Laguerre-Gaussian beam is an optical vortex with a line singularity along the beam axis. An optical singularity is a zero of an optical field. The phase in the field circulates around these points of zero intensity (giving rise to the name vortex). Vortices are points in 2D fields and lines in 3D fields (as they have codimension two).

  8. Zöllner illusion - Wikipedia

    en.wikipedia.org/wiki/Zöllner_illusion

    A version of the Zöllner illusion. The Zöllner illusion is an optical illusion named after its discoverer, German astrophysicist Johann Karl Friedrich Zöllner.In 1860, Zöllner sent his discovery in a letter to physicist and scholar Johann Christian Poggendorff, editor of Annalen der Physik und Chemie, who subsequently discovered the related Poggendorff illusion in Zöllner's original drawing.

  9. Vertex distance - Wikipedia

    en.wikipedia.org/wiki/Vertex_distance

    Vertex distance is the distance between the back surface of a corrective lens, i.e. glasses (spectacles) or contact lenses, and the front of the cornea. Increasing or decreasing the vertex distance changes the optical properties of the system, by moving the focal point forward or backward, effectively changing the power of the lens relative to ...