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  • Sapphire Viewport Transmission Curve
    Sapphire is a synthetic, hexagonal single crystal anisotropic material which displays substantially different physical, thermal, dielectric and optical characteristics when measured along different axes. MDC sapphire viewports are constructed using 90° crystal orientation, where the crystal
  • Hermetic Sealing of Sapphire Windows
    The use of sapphire material for optical sensing, emitting or detecting has been increasing considerably in the last 20 years, hence the term "window". Sapphire offers a high-quality optical surface finish, the hardness to prevent scratches, and high temperature processing capabilities. Although
  • Science Update
    with a sensor that uses near-infrared-reflectance spectroscopy to take readings through a sapphire "window " on its bottom. Initial field trials have demonstrated an ability to measure moisture, organic carbon, and total nitrogen in soils. Data from on-the-go soil analyses particularly
  • The Evolution of the IRISS Infrared Viewing Pane
    1997: Original IR windows were produced using Aluminum constructed housings and used Calcium Fluoride, Barium Fluoride and Sapphire crystals as the IR window lens. materials. These were both round and square depending on the application.

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