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  2. Light - Wikipedia

    en.wikipedia.org/wiki/Light

    The dictionary definition of light at Wiktionary; Quotations related to Light at Wikiquote This page was last edited on 29 December 2024, at 18:51 (UTC). ...

  3. Electromagnetic spectrum - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_spectrum

    By definition, visible light is the part of the EM spectrum the human eye is the most sensitive to. Visible light (and near-infrared light) is typically absorbed and emitted by electrons in molecules and atoms that move from one energy level to another.

  4. Electromagnetic radiation - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_radiation

    In physics, electromagnetic radiation (EMR) is the set of waves of an electromagnetic (EM) field, which propagate through space and carry momentum and electromagnetic radiant energy.

  5. Waveguide (optics) - Wikipedia

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

    An optical waveguide is a physical structure that guides electromagnetic waves in the optical spectrum.Common types of optical waveguides include optical fiber waveguides, transparent dielectric waveguides made of plastic and glass, liquid light guides, and liquid waveguides.

  6. Lightwave - Wikipedia

    en.wikipedia.org/wiki/Lightwave

    Lightwave Electronics Corporation, a developer and manufacturer of diode-pumped solid-state lasers; Technology. Lightwave 3D, computer graphics program developed ...

  7. Visible spectrum - Wikipedia

    en.wikipedia.org/wiki/Visible_spectrum

    Regardless of actual physical and biological variance, the definition of the limits is not standard and will change depending on the industry. For example, some industries may be concerned with practical limits, so would conservatively report 420–680 nm, [ 21 ] [ 22 ] while others may be concerned with psychometrics and achieving the broadest ...

  8. Visible light communication - Wikipedia

    en.wikipedia.org/wiki/Visible_light_communication

    One of the main characteristics of VLC is the incapacity of light to surpass physical opaque barriers. This characteristic can be considered a weak point of VLC, due to the susceptibility of interference from physical objects, but is also one of its many strengths: unlike radio waves, light waves are confined in the enclosed spaces they are transmitted, which enforces a physical safety barrier ...

  9. Spectrum (physical sciences) - Wikipedia

    en.wikipedia.org/wiki/Spectrum_(physical_sciences)

    Diagram illustrating the electromagnetic spectrum. In the physical sciences, the term spectrum was introduced first into optics by Isaac Newton in the 17th century, referring to the range of colors observed when white light was dispersed through a prism.