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  2. Loupe - Wikipedia

    en.wikipedia.org/wiki/Loupe

    Loupe-mounted lights used to be fed by fiber optic cables that connected to either a wall-mounted or table-top light source. Newer models feature a more convenient LED lamp within the loupe-mounted light and an electric cord coming from either the conventional wall-mounted or table-top light source or a belt clip rechargeable battery pack.

  3. Binoculars - Wikipedia

    en.wikipedia.org/wiki/Binoculars

    Binoculars concentrate the light gathered by the objective into a beam, of which the diameter, the exit pupil, is the objective diameter divided by the magnifying power. For maximum effective light-gathering and brightest image, and to maximize the sharpness, [27] the exit pupil should at least equal the diameter of the pupil of the human eye ...

  4. Magnifying glass - Wikipedia

    en.wikipedia.org/wiki/Magnifying_glass

    The magnifying power in this case is roughly MP = d o Φ. [9] A typical magnifying glass might have a focal length of 25 cm, corresponding to an optical power of 4 dioptres. Such a magnifier would be sold as a "2×" magnifier. In actual use, an observer with "typical" eyes would obtain a magnifying power between 1 and 2, depending on where lens ...

  5. Opera glasses - Wikipedia

    en.wikipedia.org/wiki/Opera_glasses

    The design of many modern opera glasses of the ornamental variety is based on the popular lorgnettes of the 19th century. Often, modern theatre binoculars are equipped with an LED flashlight, which makes it easier to find a place in the dark. In addition to the more stereotypical binocular type, folding opera glasses were another common design.

  6. Night-vision device - Wikipedia

    en.wikipedia.org/wiki/Night-vision_device

    Supported weapons include the AK family, sniper rifles, light machine guns and hand-held grenade launchers. 1PN34 refractor-based night sight for a range of small arms and grenade launchers (photo) 1PN50 refractor-based night observation binoculars. [85] 1PN51 reflector-based night sight for a range of small arms and grenade launchers. [86]

  7. Magnifier - Wikipedia

    en.wikipedia.org/wiki/Magnifier

    A magnifier is a device used for magnification. Magnifier can also refer to: Magnifying glass, an optical device for magnification; Screen magnifier, software that magnifies part of a computer screen Magnifier (Windows), a screen magnifier for Microsoft Windows; Magnifier (iOS), a magnifying glass app for iOS; Magnifier, a magnifying glass app ...

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