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  • Blackbody Free Calibration Technique for Infrared Cameras
    Article - 15 Jul 2014
    There are many different non-uniformity correction and radiometric calibration techniques available and each technique has its own benefits and drawbacks.
  • 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...
  • Bragg Grating - Introduction and Applications
    Article - 13 Mar 2014
    Fiber Bragg Grating (FBG) is a type of Bragg reflector (distributed type) that is constructed as a short segment of optical fiber to reflect light of certain wavelength and transmit the rest.
  • Beam Profiler - Definition and Applications
    Article - 12 Mar 2014
    Measurement of the optical beam profile is of critical importance in a number of laser applications.
  • 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.
  • Telecentric Lenses and Their Application
    Article - 6 Feb 2014
    Telecentric lens is a compound lens used in imaging systems to make objects appear to be the same size independent of their location in space.
  • What is a Pinhole Camera?
    Article - 17 Jan 2014
    A pinhole camera, also known as camera obscura or "dark chamber", is a simple camera that has a single small aperture called pinhole instead of a lens.
  • Moiré Pattern - Description and Applications
    Article - 6 Jan 2014
    Moiré patterns occur when materials are overlapped with repetitive lines. It is a naturally occurring interference pattern created by overlaying similar but slightly offset templates.
  • Michelson Interferometer - Definition and Applications
    Article - 3 Jan 2014
    Michelson interferometer is a tool to produce interference between two beams of light. It is the most common design for optical interferometry and was invented by Albert Abraham Michelson.
  • Fizeau Interferometer - Definition and Applications
    Article - 3 Jan 2014
    Interferometric measurements can be carried out in an optical arrangement in which two or more beams originated from the same source, but passing in different paths are made to interfere....

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