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Results 241 - 250 of 348 for Lens
  • Collimator - Definition and Applications
    Article - 10 Apr 2014
    Collimator is a device used for changing the direction of a light diverging from a point source into a parallel beam. The collimation of light is necessary to make spectroscopic measurements.
  • Chromatic Dispersion - Definition and Applications
    Article - 10 Apr 2014
    Chromatic dispersion is the change in refractive index due to change in wavelength. Dispersion is the phenomenon that causes light to be separated into various colors while passing through a prism....
  • B-Integral - Definition and Significance
    Article - 9 Apr 2014
    B-Integral is defined as the measure of the non-linear phase shift of light in devices like amplifiers. B-Integral is a term that is specific to non-linear optics. The non-linear shift of the laser...
  • Plano-Convex Lens - Equation and Explanation
    Article - 14 Mar 2014
    A plano-convex lens is a convergent lens with one flat surface and one convex surface. It focuses parallel light rays to a positive focal point to form real images that can be manipulated using...
  • Photodiodes - Their Working Principles and Applications
    Article - 13 Mar 2014
    A photodiode is a kind of light detector which involves conversion of light into voltage or current based on the mode of operation of the device. It consists of built-in lenses, optical filters, and...
  • Neutral Density Filter - Definition and Properties
    Article - 3 Mar 2014
    A neutral density filter is a semi-transparent glass filter used in front of a camera lens to reduce or vary the intensity of incoming light without affecting the color rendition.
  • Meniscus Lens and Their Application
    Article - 28 Feb 2014
    Meniscus lens is a lens having two spherical curved surfaces, convex on one side and concave on the other side. It is thicker at the center than at the edges. The lens provides a smaller beam diameter...
  • Axicon Lenses and their Application
    Article - 27 Feb 2014
    The axicon lens is a specialized lens that bears a conical surface. The axicon lens images a point source as a line along the optic axis.
  • What is the Visible Spectrum?
    Article - 7 Feb 2014
    Visible spectrum, radio waves, ultraviolet rays, x-rays, gamma-rays, microwaves and infrared light are various electromagnetic radiations that belong to the electromagnetic spectrum.
  • Toric Lens - Definition and Applications
    Article - 6 Feb 2014
    Toric lens is a special type of lens having two different focal length and optical power in orientations that are perpendicular to each other.

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