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  2. Optical glass - Wikipedia

    en.wikipedia.org/wiki/Optical_glass

    Optical glass refers to a quality of glass suitable for the manufacture of optical systems such as optical lenses, prisms or mirrors.Unlike window glass or crystal, whose formula is adapted to the desired aesthetic effect, optical glass contains additives designed to modify certain optical or mechanical properties of the glass: refractive index, dispersion, transmittance, thermal expansion and ...

  3. Screen-door effect - Wikipedia

    en.wikipedia.org/wiki/Screen-door_effect

    The dominant method made use of a microlens array, wherein each micro-lens caused a slightly magnified image of the pixel behind it, filling in the previously-visible spaces between pixels. In addition, when making a projector with a single, full-color LCD panel, an additional appearance of pixelation was visible due to the noticeability of ...

  4. Mangin mirror - Wikipedia

    en.wikipedia.org/wiki/Mangin_mirror

    Since light passes through the glass twice, the overall system acts like a triplet lens. [4] The Mangin mirror was invented in 1874 [1] by a French military engineer named Colonel Alphonse Mangin as a substitute for the more difficult to manufacture parabolic reflecting mirror for use in searchlights. Since the catadioptric design eliminated ...

  5. Mirror - Wikipedia

    en.wikipedia.org/wiki/Mirror

    A mirror, also known as a looking glass, is an object that reflects an image. Light that bounces off a mirror will show an image of whatever is in front of it, when focused through the lens of the eye or a camera. Mirrors reverse the direction of the image in an equal yet opposite angle from which the light shines upon it.

  6. Electrochromic device - Wikipedia

    en.wikipedia.org/wiki/Electrochromic_device

    The solar-optical properties of electrochromic coatings vary over a wide range in response to an applied electrical signal that can be applied via execution of laboratory processes, such as Cyclic Voltammetry (CV). Specifically, these smart windows are made of Tungsten Oxide (WO 3). Tungsten Oxide is known to be a standard material used for ...

  7. Why Trump’s tariff plans could lead to higher interest rates

    www.aol.com/finance/why-trump-tariff-plans-could...

    President-elect Donald Trump’s promise to impose stiff tariffs against America’s three biggest trading partners is widely expected to push prices higher, which would set the stage for the ...

  8. Lens - Wikipedia

    en.wikipedia.org/wiki/Lens

    A burning apparatus consisting of two biconvex lens. A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction.A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis.

  9. AOL Mail - AOL Help

    help.aol.com/products/aol-webmail

    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.