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  2. Lensmeter - Wikipedia

    en.wikipedia.org/wiki/Lensmeter

    13 – Prism scale knob. A lensmeter or lensometer (sometimes even known as focimeter or vertometer), [1] [2] is an optical instrument used in ophthalmology. It is mainly used by optometrists and opticians to measure the back or front vertex power of a spectacle lens and verify the correct prescription in a pair of eyeglasses, to properly ...

  3. Ishihara test - Wikipedia

    en.wikipedia.org/wiki/Ishihara_Test

    D003119. [ edit on Wikidata] The Ishihara test is a color vision test for detection of red–green color deficiencies. It was named after its designer, Shinobu Ishihara, a professor at the University of Tokyo, who first published his tests in 1917. [ 2] The test consists of a number of Ishihara plates, which are a type of pseudoisochromatic plate.

  4. Farnsworth–Munsell 100 hue test - Wikipedia

    en.wikipedia.org/wiki/Farnsworth–Munsell_100...

    Farnsworth–Munsell 100 hue test. The Farnsworth–Munsell 100 Hue Color Vision test is a color vision test often used to test for color blindness. The system was developed by Dean Farnsworth in the 1940s and it tests the ability to isolate and arrange minute differences in various color targets with constant value and chroma that cover all ...

  5. List of colors (alphabetical) - Wikipedia

    en.wikipedia.org/wiki/List_of_colors_(alphabetical)

    The following list shows a compact version of the colors in the list of colors A–F, G–M, and N–Z articles. The list shows the color swatch and its name. Hovering over the color box shows the HSV, RGB, and #hex values for the color in the tool tip.

  6. Colorimetry - Wikipedia

    en.wikipedia.org/wiki/Colorimetry

    Colorimetry. Colorimetry is "the science and technology used to quantify and describe physically the human color perception ". [ 1] It is similar to spectrophotometry, but is distinguished by its interest in reducing spectra to the physical correlates of color perception, most often the CIE 1931 XYZ color space tristimulus values and related ...

  7. Dispersion (optics) - Wikipedia

    en.wikipedia.org/wiki/Dispersion_(optics)

    A compact fluorescent lamp seen through an Amici prism. In optics and in wave propagation in general, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency; [ 1] sometimes the term chromatic dispersion is used for specificity to optics in particular. A medium having this common property may be termed a ...

  8. Person of color - Wikipedia

    en.wikipedia.org/wiki/Person_of_color

    The term "person of color" (pl.: people of color or persons of color; abbreviated POC) [1] is primarily used to describe any person who is not considered "white".In its current meaning, the term originated in, and is primarily associated with, the United States; however, since the 2010s, it has been adopted elsewhere in the Anglosphere (often as person of colour), including relatively limited ...

  9. List of people with color blindness - Wikipedia

    en.wikipedia.org/wiki/List_of_people_with_color...

    Kept a list of matching suits and ties. Bill Gates: b. 1955 United States: Founder of Microsoft [unreliable source?] Joseph Gatt: b. 1971 England: Actor, model Was prevented from becoming a pilot. [citation needed] Jeff Gerstmann: red–green b. 1975 United States: Video game journalist Oliver Goldsmith: blue cone monochromacy: 1728–1774 England