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  • Machine Vision – A Guide to Understanding the Basics
    Article - 13 Sep 2017
    Machine vision is the use of digital sensors for digital inspection.
  • A History of Nineteenth Century Photography: Bringing Astronomy and Medicine into Focus
    Article - 23 Apr 2015
    The invention and establishment of the wet collodion process and the dry-plate negative led to great advancements in the fields of astronomy and medicine in the second half of the nineteenth century.
  • An Introduction Doppler Cooling
    Article - 15 May 2014
    Doppler cooling is the laser based cooling of small particles, such as ions and atoms, which are trapped during the cooling process. It also involves the spontaneous emission of photons, which...
  • Specular Reflection - Definition
    Article - 19 Jun 2014
    Reflection of light is of two types:specular and diffuse. Specular reflection is a type of surface reflectance. Specular reflection is a mirror-like reflection of light from the surface. In specular...
  • What is Radiation?
    Article - 25 Sep 2014
    Radiation is a phenomenon wherein energy is propagated and emitted in the form of electromagnetic waves. Radiation consists of different types of waves - water waves, sound waves, light waves, and...
  • ant Critical Angle - Definition and Applications
    Article - 6 May 2014
    Critical angle in optics refers to the angle of incidence beyond which total internal reflection of light occurs.
  • Optical Condenser - Definition and Applications
    Article - 1 May 2014
    A condenser is essentially an optical lens that is used to convert a divergent beam from apoint source into a parallel or converging beam.
  • What is Electro-Optical Rectification?
    Article - 8 Oct 2013
    Optical rectification or electro-optic rectification may be described as a non-linear optical process that generates a quasi-DC polarization in a non-linear medium by passing an intense beam of light.
  • What is a Mercury Vapour Lamp?
    Article - 6 May 2014
    A mercury vapour lamp is a high-pressure electric arc discharge lamp that provides intense illumination over a selected range of wavelengths.
  • What is an Optical Fiber Isolator?
    Article - 22 Oct 2014
    Optical isolators are optical elements which allow light to propagate in only one direction. The propagation of light in one single direction is required in order to prevent optical back scattering or...

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