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  • What is a Beam Combiner?
    Article - 11 Jun 2013
    A beam combiner is essentially an arrangement of beam splitters and mirrors. The function of a beam splitter is to divide the incident light into two paths, one by transmission and another by...
  • What are Optical Flats?
    Article - 11 Jun 2013
    Optical flats can be described as an optical grade glass which is polished and made extremely flat on both surfaces, used for determining the flatness of various optical surfaces.
  • What is an Optical Chopper?
    Article - 10 Jun 2013
    An optical chopper is a device that interrupts a light beam at periodic intervals. By varying the frequency of operation of the chopper it can be used for various applications. The first ever optical...
  • What is a Diffraction Grating?
    Article - 10 Jun 2013
    Diffraction grating comes into the picture when there is a need for separate light of different wavelengths with high resolution. A diffraction grating is a multiple slit arrangement made by etching...
  • 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...
  • What is a CCD Sensor?
    Article - 10 Jun 2013
    The CCD (charge coupled device) was first invented at the Bell laboratories in the 1960s. CCDs are thin wafers which consist of a number of buried electrodes that facilitate the movement of electrons...
  • What is a Periscope?
    Article - 7 Jun 2013
    A periscope can be defined as an optical instrument that allows the viewing of objects that are not in the direct life of vision. Periscopes prove to be of great help to submariners to have a view of...
  • What is an Optical Diffuser?
    Article - 5 Jun 2013
    An optical diffuser can be defined as an element that scatters light. An optical diffuser is used for softening or giving shape to an illumination. Optical diffusers are commonly used in commercial...
  • What is an Optical Amplifier?
    Article - 5 Jun 2013
    Optical amplifiers are devices that amplify an optical signal without converting it into an electric signal. Optical amplifiers are of two kinds: laser amplifiers and feedback amplifiers. Laser...
  • What is a Beamsplitter?
    Article - 5 Jun 2013
    Beamsplitters are elements that redirect a portion of the incident beam of light and allow the rest of the light to continue in the original direction.

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