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  2. Monochromator - Wikipedia

    en.wikipedia.org/wiki/Monochromator

    Conceptual animation of the dispersion (or breaking down) of light Monochromator in an x-ray beamline at the Advanced Photon Source, Argonne National Laboratory.. A monochromator is an optical device that transmits a mechanically selectable narrow band of wavelengths of light or other radiation chosen from a wider range of wavelengths available at the input.

  3. Photochromic lens - Wikipedia

    en.wikipedia.org/wiki/Photochromic_lens

    The glass version of these lenses achieves their photochromic properties through the embedding of microcrystalline silver halides (usually silver chloride) in a glass substrate. Plastic photochromic lenses use organic photochromic molecules (for example oxazines and naphthopyrans) to achieve the reversible darkening effect. These lenses darken ...

  4. Optical flat - Wikipedia

    en.wikipedia.org/wiki/Optical_flat

    Unless the two surfaces are perfectly flat, there will be a small gap between them (shown), which will vary with the contour of the surface. Monochromatic light (red) shines through the glass flat and reflects from both the bottom surface of the optical flat and the top surface of the test piece, and the two reflected rays combine and superpose ...

  5. Jumia - Wikipedia

    en.wikipedia.org/wiki/Jumia

    Jumia's share price sank more than 50% in one week after the report was published. [74] Citigroup, one of Jumia’s IPO underwriters, released a report debunking most of Citron’s allegations but noted that, “Jumia could do more to provide disclosure on some aspects of its operations, as a matter of transparency and best practice.” [75] [76]

  6. Monochromacy - Wikipedia

    en.wikipedia.org/wiki/Monochromacy

    Monochromacy (from Greek mono, meaning "one" and chromo, meaning "color") is the ability of organisms to perceive only light intensity without respect to spectral composition.

  7. Optical aberration - Wikipedia

    en.wikipedia.org/wiki/Optical_aberration

    The caustic, in the first case, resembles the sign > (greater than); in the second < (less than). If the angle u1 is very small, O'1 is the Gaussian image; and O'1 O'2 is termed the longitudinal aberration, and O'1R the lateral aberration of the pencils with aperture u2.

  8. Simple lens - Wikipedia

    en.wikipedia.org/wiki/Simple_lens

    They are commonly used for laser applications, however, where the beams are both monochromatic (minimizing chromatic aberration) and narrow (minimizing spherical aberration). Some cameras with fixed lenses have been made using a simple lens, usually a meniscus lens with the convex face facing outward.

  9. Achromatopsia - Wikipedia

    en.wikipedia.org/wiki/Achromatopsia

    Achromatopsia, also known as rod monochromacy, is a medical syndrome that exhibits symptoms relating to five conditions, most notably monochromacy.Historically, the name referred to monochromacy in general, but now typically refers only to an autosomal recessive congenital color vision condition.

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