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  • Liquid Lens - An Introduction to Liquid Lens
    Article - 21 Nov 2007
    The theory behind liquid lens is based on the properties of one or more fluids to create magnifications within a small amount of space. Liquid lens can be considered as "infinitely variables" lens...
  • Glare - What is Glare and How Does it Occur?
    Article - 19 Nov 2007
    When there is an excessive contrast between the dark areas and bright areas in the direction of viewing, then glare can result. Simply, when there is too much light hitting the surface, this...
  • What is a Focal Length?
    Article - 18 Nov 2007
    The focal length of an optical system is a measure of how strongly it focuses or diffuses light. A system has greater optical power if it has a shorter focal length than a system that possesses a...
  • Dioptre - The Definition of Dioptre
    Article - 17 Nov 2007
    Dioptre is a measurement unit that describes the optical power of a lens or a curved mirror. Dioptre can be expressed as the reciprocal value of its focal length in meters.
  • Anti-Reflective Coatings - What is Anti-Reflective Coating and How Do They Work?
    Article - 17 Nov 2007
    Anti-reflective coatings significantly reduce the loss of light. Anti-reflective coatings also reduce the amount of glare from lights. Anti-reflective coatings are made possible by using techniques...
  • Converting Light into Electricity - How Does a Photovoltaic Cell Work
    Article - 17 Nov 2007
    Photovoltaic cells, more commonly known as solar cells, are found in applications such as calculator and satellites. First used almost exclusively in space, photovoltaic cells are used in more common...
  • In Confocal Raman Imaging - Acquisition Time for One Raman Spectrum is a Crucial Value
    Article - 10 Nov 2007
    This article describes how the use of a spectroscopic EMCCD as the detector can significantly reduce the acquisition time down to a few milliseconds per spectrum, as well as tremendously improving...
  • States of Polarization - Linear, Circular and Elliptical Polarization
    Article - 4 Nov 2007
    The polarization state is one of the fundamental characteristics that is required to study light.
  • Methods Employed to Polarize Light
    Article - 3 Nov 2007
    Light waves that vibrate in a single plane are referred to as polarized light, and the transformation of unpolarized light into polarized light is called polarization.
  • An Introduction to Refractometry
    Article - 25 Oct 2007
    You’ve lost the key to your locker in the swimming pool. You spot it lying on the bottom of the shallow part of the pool, reach in to take it – and your hand misses. The refraction of light at the...

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