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  2. Prism sight - Wikipedia

    en.wikipedia.org/wiki/Prism_sight

    A Trijicon 3.5x35 ACOG prism sight with a Trijicon RMR reflex sight mounted on the top.. A prism sight or prismatic sight, sometimes also called prism scope or prismatic scope, is a type of telescopic sight which uses a reflective prism for its image-erecting system, instead of the series of relay lenses found in traditional telescopic sights.

  3. C79 optical sight - Wikipedia

    en.wikipedia.org/wiki/C79_optical_sight

    M145 Machine Gun Optic fitted to a M240B machine gun. The M145 Machine Gun Optic is a variant of the C79 that was developed for the U.S. Army and is commonly mounted on M240 and M249 machine guns. The M145 is unusual when compared with other optical sights in use with the United States military in that ballistic compensation is in the mount ...

  4. Advanced Combat Optical Gunsight - Wikipedia

    en.wikipedia.org/wiki/Advanced_Combat_Optical...

    The first ACOG model, known as the TA01, was released in 1987. [3] [4] An example was tested on the Stoner 93 in the early 1990s by the Royal Thai Armed Forces. [5]In 1995, United States Special Operations Command selected the 4×32 TA01 as the official scope for the M4 carbine and purchased 12,000 units from Trijicon. [6]

  5. Red dot sight - Wikipedia

    en.wikipedia.org/wiki/Red_dot_sight

    Trijicon RMR standard Has two screw holes, and two shallow notches acting as recoil lugs. [15] Mainly used on the Trijicon RMR red dot sight, as well as on some Holosun sights. Shield standard A proprietary standard used by Shield Sights. Similar in shape to the Noblex/Docter footprint, but with other dimensions. [15]

  6. Trijicon biblical verses controversy - Wikipedia

    en.wikipedia.org/wiki/Trijicon_biblical_verses...

    On 18 January 2010, ABC News reported Trijicon was placing references to verses in the Bible in the serial numbers of sights sold to the United States Armed Forces. [1] The "book chapter:verse" cites were appended to the model designation, and the majority of the cited verses are associated with light in darkness, referencing Trijicon's specialization in illuminated optics and night sights.

  7. Tritium radioluminescence - Wikipedia

    en.wikipedia.org/wiki/Tritium_radioluminescence

    Radioluminescent keychains. Tritium lighting is made using glass tubes with a phosphor layer in them and tritium gas inside the tube. Such a tube is known as a "gaseous tritium light source" (GTLS), or beta light (since the tritium undergoes beta decay), or tritium lamp.

  8. Luminous flux - Wikipedia

    en.wikipedia.org/wiki/Luminous_flux

    Luminous flux is often used as an objective measure of the useful light emitted by a light source, and is typically reported on the packaging for light bulbs, although it is not always prominent. Consumers commonly compare the luminous flux of different light bulbs since it provides an estimate of the apparent amount of light the bulb will ...

  9. Photometry (optics) - Wikipedia

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

    Watts can also be a direct measure of output. In a radiometric sense, an incandescent light bulb is about 80% efficient: 20% of the energy is lost (e.g. by conduction through the lamp base). The remainder is emitted as radiation, mostly in the infrared. Thus, a 60 watt light bulb emits a total radiant flux of about 45 watts.

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