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  2. Sodium vapor process - Wikipedia

    en.wikipedia.org/wiki/Sodium_vapor_process

    The camera was a retired Technicolor three-strip camera modified to use two films and used normal lenses for the conventional 1.85:1 aspect ratio. [citation needed] First developed in 1932, Technicolor three-strip cameras ran three rolls of black-and-white film past a beam splitter and a prism to film three strips of film, one for each primary ...

  3. Dispersive prism - Wikipedia

    en.wikipedia.org/wiki/Dispersive_prism

    Lamps as seen through a prism. In optics, a dispersive prism is an optical prism that is used to disperse light, that is, to separate light into its spectral components (the colors of the rainbow ). Different wavelengths (colors) of light will be deflected by the prism at different angles. [1] This is a result of the prism material's index of ...

  4. Refracting telescope - Wikipedia

    en.wikipedia.org/wiki/Refracting_telescope

    Refracting telescope. A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens as its objective to form an image (also referred to a dioptric telescope ). The refracting telescope design was originally used in spyglasses and astronomical telescopes but is also used for long-focus camera lenses.

  5. Contact lens - Wikipedia

    en.wikipedia.org/wiki/Contact_lens

    Contact lenses, other than the cosmetic variety, become almost invisible once inserted in the eye. Most corrective contact lenses come with a light "handling tint" that renders the lens slightly more visible on the eye. Soft contact lenses extend beyond the cornea, their rim sometimes visible against the sclera. Rigid lenses

  6. Three-CCD camera - Wikipedia

    en.wikipedia.org/wiki/Three-CCD_camera

    A three-CCD ( 3CCD) camera is a camera whose imaging system uses three separate charge-coupled devices (CCDs), each one receiving filtered red, green, or blue color ranges. Light coming in from the lens is split by a beam-splitter prism into three beams, which are then filtered to produce colored light in three color ranges or "bands".

  7. List of most expensive paintings - Wikipedia

    en.wikipedia.org/wiki/List_of_most_expensive...

    List of most expensive paintings. Salvator Mundi by Italian artist Leonardo da Vinci ( c. 1500) This is a list of the highest known prices paid for paintings. The record is approximately US$ 450.3 million (which includes commission ), paid for Leonardo da Vinci 's Salvator Mundi ( c. 1500 ). The painting was sold in November 2017, [1] [2 ...