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  2. Condenser (optics) - Wikipedia

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

    A condenser (right) and its respective diaphragm (left) A condenser is an optical lens that renders a divergent light beam from a point light source into a parallel or converging beam to illuminate an object to be imaged. Condensers are an essential part of any imaging device, such as microscopes, enlargers, slide projectors, and telescopes.

  3. Windows 11 - Wikipedia

    en.wikipedia.org/wiki/Windows_11

    Windows 11 SE was announced on November 9, 2021, as an edition exclusively for low-end devices sold in the education market; it is intended as a successor to Windows 10 S, and also competes primarily with ChromeOS. It is designed to be managed via Microsoft Intune. Based on feedback from educators, Windows 11 SE has multiple UI differences and ...

  4. Windows 11, version 22H2 - Wikipedia

    en.wikipedia.org/wiki/Windows_11,_version_22H2

    The fourth component update to Windows 11, version 22H2, codenamed "Moment 4", [7] was released on September 26, 2023, with build 22621.2361 and several further changes: [16] [17] The availability of Copilot in Windows (in preview) New preview flyout when hovering over files under the Recommended section on the Start menu

  5. Graphics address remapping table - Wikipedia

    en.wikipedia.org/wiki/Graphics_address_remapping...

    The graphics address remapping table (GART), [1] also known as the graphics aperture remapping table, [2] or graphics translation table (GTT), [3] is an I/O memory management unit (IOMMU) used by Accelerated Graphics Port (AGP) and PCI Express (PCIe) graphics cards.

  6. Dark-field microscopy - Wikipedia

    en.wikipedia.org/wiki/Dark-field_microscopy

    A cross-section of a nematode, photographed with an oil dark field condenser with a numerical aperture of 1.40. In optical microscopy, dark-field describes an illumination technique used to enhance the contrast in unstained samples. It works by illuminating the sample with light that will not be collected by the objective lens and thus will not ...

  7. Fiber-optic adapter - Wikipedia

    en.wikipedia.org/wiki/Fiber-optic_adapter

    A fiber optic coupler is a device used in optical fiber systems with one or more input fibers and one or several output fibers. Light entering an input fiber can appear at one or more outputs and its power distribution potentially depending on the wavelength and polarization.

  8. Aperture - Wikipedia

    en.wikipedia.org/wiki/Aperture

    The sampling aperture can be a literal optical aperture, that is, a small opening in space, or it can be a time-domain aperture for sampling a signal waveform. For example, film grain is quantified as graininess via a measurement of film density fluctuations as seen through a 0.048 mm sampling aperture.

  9. Angular resolution - Wikipedia

    en.wikipedia.org/wiki/Angular_resolution

    In that case, the angular resolution of an optical system can be estimated (from the diameter of the aperture and the wavelength of the light) by the Rayleigh criterion defined by Lord Rayleigh: two point sources are regarded as just resolved when the principal diffraction maximum (center) of the Airy disk of one image coincides with the first ...