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Results 4721 - 4730 of 12536 for Optical
  • Specialty Optical Fibers Handbook
    Book
    This book is a comprehensive contributed volume that aims to describe and explain the design, fabrication, operating characteristics, and specific applications of the most popular and useful types of...
  • Optical Aberration - Astigmatism Aberration
    Article - 7 Dec 2007
    Astigmatism aberration is a result of an off-axis image of a point of specimen which appears as an ellipse of a line rather than a point.
  • Passive Optical Networks
    Book
    Passive optical network (PON) technologies have become an important broadband access technology as a result of the growing demand for bandwidth-hungry video-on-demand applications. Written by the...
  • 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.
  • Optical Telescope - How Does it Work?
    Article - 1 Dec 2007
    An optical telescope is an instrument that can make distant objects appears much closer.
  • 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.
  • 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...
  • Phase-Modulated Optical Communication Systems
    Book
    Fiber-optic communication systems have revolutionized our telecommunication infrastructures – currently, almost all telephone land-line, cellular, and internet communications must travel via some form...
  • Kramers-Kronig Relations in Optical Materials Research
    Book
    This is the first one-volume work to provide a thorough and comprehensive description of the physical background, rigorous theory and applications of Kramers-Kronig relations in the fields of linear...

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