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  • The Photoelectric Effect
    Article - 16 Sep 2014
    In 1921 Albert Einstein won the Nobel Prize for discovering the law which governs the photoelectric effect.
  • Light-Producing Proteins Developed by BioLume
    News - 29 Oct 2007
    BioLume, Inc. announced it has been assigned or exclusively licensed the rights to more than forty U.S. and foreign patents covering natural bioluminescent proteins and related substrates from...
  • Thermoelectric Cooling - Definition and Applications
    Article - 14 Mar 2014
    Thermoelectric cooling is a process of eliminating heat energy from a device, component or medium with the application of constant voltage between two dissimilar semiconductors or electrical...
  • 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...
  • Researchers Produced Material That Can Bend Light in Opposite Direction
    News - 14 Oct 2007
    A Princeton-led research team has created an easy-to-produce material from the stuff of computer chips that has the rare ability to bend light in the opposite direction from all naturally occurring...
  • 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 Optical Resolution?
    Article - 21 Jan 2014
    Optical resolution is the physical resolution at which an imaging device can capture an image.
  • What are Photons?
    Article - 17 Jan 2014
    The term photon was coined by Gilbert Lewis in 1926. A photon is a type of elementary particle that forms the basic unit of electromagnetic radiation, which includes infrared, ultraviolet, visible...
  • What is a Focal Point?
    Article - 31 Dec 2013
    A focal point is a common point on the principal axis where all the light rays starting from the object converge.
  • Catadioptric System Definition and Applications
    Article - 27 Dec 2013
    Catadioptric systems may be defined as optical systems that make use of lenses and mirrors for the formation of images.

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