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Results 5961 - 5970 of 15172 for Lighting
  • Breaking the Nanometer X-Ray Resolution Barrier
    Article - 15 Jan 2008
    In recent years, researchers at the U.S. Department of Energy's Brookhaven National Laboratory have overcome a major difficulty for using refractive lenses to focus x-rays.
  • Largest Laser in the World is Picking up Speed
    Article - 13 Jan 2008
    Scientists and technicians at the NIF are quickening their pace to install and test the rest of NIF’s 192 lasers.
  • What is Adaptive Optics?
    Article - 9 Jan 2008
    Adaptive Optics can be defined as the optical systems that adapt to rectify for optical effects which is presented by the medium between the object and its image.
  • X-Rays Using Zone Plate Lenses Capable of 15-Nanometer Resolution or More
    Article - 4 Jan 2008
    Progress in nanoscience and nanotechnology depends not only on examining the surfaces of materials but on microscopically examining biological organisms and material structures to identify what they...
  • What is Lens Flare and the Mechanisms of Lens Flare
    Article - 15 Dec 2007
    Lens flare is one of those optical phenomena which can ruin an otherwise perfect photograph, and all too often you don'tknow it until after the fact when you get your photos back from processing. Lens...
  • Field Curvature Aberration – What is Field Curvature Aberration?
    Article - 7 Dec 2007
    In optical microscopy, field curvature is an optical aberration that most of the experienced microscopists are familiar with. Field curvature occurs when lenses that have curved surfaces are used.
  • Chromatic Aberration – The Definition of Chromatic Aberration
    Article - 2 Dec 2007
    Chromatic aberration is also referred to as color fringing. Chromatic aberration occurs when a lens system is creating different focal lengths for different wavelengths of light. In other words, it is...
  • What is Optical Aberration and Types of Optical Aberration?
    Article - 1 Dec 2007
    Optical aberration can be considered as a flaw or distortion in the image generated by an optical system such as a lens or mirror compared to the original image.
  • 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.
  • First Directly Pumped Silicon Laser
    News - 8 Jul 2007
    Since the creation of the first working laser – a ruby model made in 1960 – scientists have fashioned these light sources from substances ranging from neon to sapphire. Silicon,...

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