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Results 271 - 280 of 348 for Lens
  • Cassegrain Telescope - Definition and Applications
    Article - 23 Dec 2013
    The Cassegrain telescope is an astronomical reflecting telescope in which the light is incident on a large concave paraboloid mirror and reflected onto a smaller convex hyperboloid mirror.
  • The History of the Catoptric Optical System
    Article - 23 Dec 2013
    Catoptrics has been introduced way back in time by the ancient Greeks. There were two main ancient Greek texts that mentioned catoptrics.Catoptric systems are those optical systems that employ only...
  • Optical Condenser - Definition and Applications
    Article - 20 Dec 2013
    A condenser is essentially an optical lens that is used to convert a divergent beam from apoint source into a parallel or converging beam.
  • Coma – Definition and Causes of Comatic Optical Aberration
    Article - 19 Dec 2013
    Optical aberrations are deviations from geometric optics that are mainly caused by faults in optical lenses.
  • The Diffraction Limits in Optical Microscopy
    Article - 19 Dec 2013
    The optical microscope, also called the light microscope, is the oldest type of microscope which uses visible light and lenses in order to magnify images of very small samples. It is a standard tool...
  • Applications of 3D Microscopy
    Article - 18 Dec 2013
    The technical field of microscopy deals with the use of different types of microscopes to view and study samples and objects that otherwise cannot be viewed with the naked eye.
  • Confocal Microscopy - Applications and Benefits
    Article - 22 Nov 2013
    Confocal microscopy is a versatile imaging method through which viewing cells and tissues is made possible. It is a major improvement from conventional light microscopy as it also helps create images...
  • Using a Smartphone for Virus Detection
    Article - 26 Sep 2013
    Advancements in smartphones are continuing to progress with an effort to making these phones capable of being applied in sophisticated fields of application including laboratory analysis.
  • What is a Collimator?
    Article - 10 Jun 2013
    A collimator may be described as a device that focuses or narrows a light beam or a stream of particles to be aligned in a different direction or reduce its cross section. The collimator focuses a...
  • Optical Lenses - How They Work and Types of Lens
    Article - 7 Jun 2013
    A lens can be described as an optical device that transmits and refracts the incident beam by converging or diverging it. A simple lens consists of a single optical element, while a compound lens is...

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