When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Haze (optics) - Wikipedia

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

    Reflection Haze is an optical phenomenon usually associated with high gloss surfaces, it is a common surface problem that can affect appearance quality. The reflection from an ideal high gloss surface should be clear and radiant, however, due to scattering at imperfections in the surface caused by microscopic structures or textures (≈ 0.01 mm wavelength) the reflection can appear milky or ...

  3. Optical coating - Wikipedia

    en.wikipedia.org/wiki/Optical_coating

    The thicknesses of the layers are generally quarter-wave (then they yield to the broadest high reflection band in comparison to the non-quarter-wave systems composed from the same materials), this time designed such that reflected beams constructively interfere with one another to maximize reflection and minimize transmission. The best of these ...

  4. Sky quality meter - Wikipedia

    en.wikipedia.org/wiki/Sky_Quality_Meter

    The current versions has only one band of observation, that can produce misinterpretations if the light pollution changes from sodium-vapor lamp to LED. [ 8 ] The SQM-L, or "Sky Quality Meter - L," is a model with an additional integrated lens, offering a narrower measurement range of 20° compared to the 84° range of the standard SQM model.

  5. Light pollution - Wikipedia

    en.wikipedia.org/wiki/Light_pollution

    Light pollution is the presence of any unwanted, inappropriate, or excessive artificial lighting. [1] [2] In a descriptive sense, the term light pollution refers to the effects of any poorly implemented lighting sources, during the day or night. Light pollution can be understood not only as a phenomenon resulting from a specific source or kind ...

  6. Interference filter - Wikipedia

    en.wikipedia.org/wiki/Interference_filter

    When light strikes an oil film at an angle, some of the light is reflected from the top surface of the oil, and some is reflected from the bottom surface where it is in contact with the water. Because the light reflecting from the bottom travels a slightly longer path, some light wavelengths are reinforced by this delay, while others tend to be ...

  7. Content Security Policy - Wikipedia

    en.wikipedia.org/wiki/Content_Security_Policy

    One example goal of a policy is a stricter execution mode for JavaScript in order to prevent certain cross-site scripting attacks. In practice this means that a number of features are disabled by default: Inline JavaScript code [a] <script> blocks, [b] DOM event handlers as HTML attributes (e.g. onclick) The javascript: links; Inline CSS statements

  8. Cross-site scripting - Wikipedia

    en.wikipedia.org/wiki/Cross-site_scripting

    Cross-site scripting (XSS) [a] is a type of security vulnerability that can be found in some web applications. XSS attacks enable attackers to inject client-side scripts into web pages viewed by other users. A cross-site scripting vulnerability may be used by attackers to bypass access controls such as the same-origin policy.

  9. Astronomical filter - Wikipedia

    en.wikipedia.org/wiki/Astronomical_filter

    The broadband, or light pollution reduction (LPR), filters are designed to block the sodium and mercury vapor light, and also block natural skyglow such as the auroral light. [15] This allows observing nebulae from the city and light polluted skies. [1] Broadband filters differ from narrowband with the range of wavelengths transmission.