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  2. Prism lighting - Wikipedia

    en.wikipedia.org/wiki/Prism_lighting

    Prism lighting is the use of prisms to improve the distribution of light in a space. It is usually used to distribute daylight , and is a form of anidolic lighting . Prism lighting was popular from its introduction in the 1890s through to the 1930s, when cheap electric lights became commonplace and prism lighting became unfashionable.

  3. Visible spectrum - Wikipedia

    en.wikipedia.org/wiki/Visible_spectrum

    White light is dispersed by a prism into the colors of the visible spectrum. The visible spectrum is the band of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light (or simply light). The optical spectrum is sometimes considered to be the same as the ...

  4. Fulton MX991/U Flashlight - Wikipedia

    en.wikipedia.org/wiki/Fulton_MX991/U_Flashlight

    The MX-991/U Flashlight (aka GI Flashlight, Army flashlight, or Moonbeam [1]) from the TL-122 military flashlight series of 1937-1944 and is a development of the MX-99/U flashlight issued in 1963. In use since the Vietnam War, the MX-991/U has been made by various contractors over the years, including GT Price, Bright Star, [2] and Fulton ...

  5. Full-spectrum light - Wikipedia

    en.wikipedia.org/wiki/Full-spectrum_light

    Full-spectrum light is light that covers the electromagnetic spectrum from infrared to near- ultraviolet, or all wavelengths that are useful to plant or animal life; in particular, sunlight is considered full spectrum, even though the solar spectral distribution reaching Earth changes with time of day, latitude, and atmospheric conditions.

  6. How to Know Which Light Bulb Temperature to Choose - AOL

    www.aol.com/know-light-bulb-temperature-choose...

    Soft White and Warm White. Ranging from 1,000K to 6,000K, soft or warm light is the lowest color temperature, producing the coziest-feeling light. “Rooms that are primarily used for recreation ...

  7. Fresnel lens - Wikipedia

    en.wikipedia.org/wiki/Fresnel_lens

    A holder in front of the lens can hold a colored plastic film (gel) to tint the light or wire screens or frosted plastic to diffuse it. The Fresnel lens is useful in the making of motion pictures not only because of its ability to focus the beam brighter than a typical lens, but also because the light is a relatively consistent intensity across ...

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