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  • Neutral Density Filter - Definition and Properties
    Article - 18 Sep 2014
    A neutral density filter is a semi-transparent glass filter used in front of a camera lens to reduce or vary the intensity of incoming light without affecting the color rendition.
  • Fizeau Interferometer - Definition and Applications
    Article - 1 May 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....
  • 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...
  • Delving into Optics: Understanding Physical, Geometric, and Quantum Perspectives
    Article - 13 Jun 2024
    This article explores the three major branches of optics—physical, geometric, and quantum—detailing their principles, differences, and applications in modern technology and scientific research.
  • The Role of Photonic Crystals in Controlling Light Propagation
    Article - 21 Aug 2023
    This article discusses photonic crystals and their role in controlling the propagation of light.
  • What are Dark-Field Microscopes?
    Article - 20 Jan 2022
    Dark-field microscopy has been used since the early 20th century to observe living, unstained cells and microorganisms. Specimens are brightly lit against a dark background to provide the contrast...
  • Commercializing Space Optics and the Future of the Industry
    Article - 28 Jan 2021
    Paul Townley-Smith discusses ZYGO's evolution in space optics, focusing on commercialization and innovation in earth imaging and communication.
  • Looking Into The Diverse Area Of Wearable Optics
    Article - 9 Aug 2018
    Wearable optics come in many different forms, from the low-tech aesthetics by integrating optical fibers with clothing, to newly created advanced optical sensors and creating high-tech applications,...
  • How to Characterize Thin Films
    Article - 19 Mar 2018
    Thin films - a layer material between sub-nanometer & several micrometers, represented in various coatings from conformal and spray to atomically thin.
  • The Diffraction Limits in Optical Microscopy
    Article - 4 Aug 2014
    The optical microscope, also called the light microscope, is the oldest type of microscope which uses visible light and lenses in order to magnify images of very small samples. It is a standard tool...

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