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N-BK7 SF11 Optical Glass Achromatic Doublet for High-Resolution Photography

    Buy cheap N-BK7 SF11 Optical Glass Achromatic Doublet for High-Resolution Photography from wholesalers
     
    Buy cheap N-BK7 SF11 Optical Glass Achromatic Doublet for High-Resolution Photography from wholesalers
    • Buy cheap N-BK7 SF11 Optical Glass Achromatic Doublet for High-Resolution Photography from wholesalers
    • Buy cheap N-BK7 SF11 Optical Glass Achromatic Doublet for High-Resolution Photography from wholesalers
    • Buy cheap N-BK7 SF11 Optical Glass Achromatic Doublet for High-Resolution Photography from wholesalers
    • Buy cheap N-BK7 SF11 Optical Glass Achromatic Doublet for High-Resolution Photography from wholesalers

    N-BK7 SF11 Optical Glass Achromatic Doublet for High-Resolution Photography

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    Brand Name : LONGWAY
    Model Number : LW16092042
    Certification : ISO9001
    Price : NEGOTIATION
    Payment Terms : D/P,T/T,Western Union
    Supply Ability : 50000 Pieces per Month
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    N-BK7 SF11 Optical Glass Achromatic Doublet for High-Resolution Photography



    N-BK7 SF11 Optical Glass Achromatic Doublet for High-Resolution Photography


    1. Material

      • Composition‌: The N-BK7/SF11 Achromatic Doublet is composed of two types of optical glass: N-BK7 and SF11.
        • N-BK7‌: A type of borosilicate crown glass with high transmittance in the visible and near-infrared spectrum.
        • SF11‌: A type of flint glass known for its ability to correct chromatic aberrations in combination with crown glass.

      Property

      • Refractive Index‌: Each glass type has a distinct refractive index, which allows for the dispersion of light to be managed and corrected.
        • N-BK7‌: Typically has a refractive index of around 1.516 at 587.6 nm.
        • SF11‌: Typically has a higher refractive index compared to N-BK7, aiding in the correction of chromatic aberrations.
      • Dispersion‌: The combination of N-BK7 and SF11 glasses is specifically chosen to minimize dispersion, ensuring that light of different colors focuses to a common point.
      • Durability‌: Both glasses are resistant to thermal shock and chemical attack, ensuring longevity and stability in various environments.

      Function

      • Achromatic Correction‌: The doublet design utilizes the different refractive indices and dispersions of N-BK7 and SF11 glasses to correct for chromatic aberrations. This results in images that are free from color fringes and have high color fidelity.
      • High Resolution‌: The precise manufacturing and optical properties of the doublet enable it to produce high-resolution images with sharp detail and clarity.
      • Focal Length and Aperture‌: The doublet can be designed with various focal lengths and apertures to suit different photographic needs, from wide-angle to telephoto applications.

      Application

      • High-Resolution Photography‌: Ideal for use in professional photography where high resolution and color accuracy are critical, such as portrait photography, landscape photography, and scientific imaging.
      • Telescopes and Binoculars‌: The achromatic doublet can be used in telescopes and binoculars to produce clear, high-contrast images with minimal chromatic aberration.
      • Machine Vision and Imaging Systems‌: Suitable for machine vision and imaging systems that require precise color rendition and high spatial resolution.


    NameOptical Achromatic Doublet
    MaterialOptical glass, Qurartz glass, borosilicate glass
    Diameter Tolerance+0/-0.15 mm
    Thickness Tolerance+/-0.15mm
    Processedby grinding, polishing
    Surface Quality60/40,40/20
    Material Qualityno scratches and air bubble
    Transmissionabove 90%
    Chamfer0.1-0.5 mm x 45°
    Surface CoatingAvailable
    UsagePhotography, Lighting system






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