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BK7 CaF2 Znse Optical Window Lens for UV and IR Optical Systems

    Buy cheap BK7 CaF2 Znse Optical Window Lens for UV and IR Optical Systems from wholesalers
     
    Buy cheap BK7 CaF2 Znse Optical Window Lens for UV and IR Optical Systems from wholesalers
    • Buy cheap BK7 CaF2 Znse Optical Window Lens for UV and IR Optical Systems from wholesalers
    • Buy cheap BK7 CaF2 Znse Optical Window Lens for UV and IR Optical Systems from wholesalers
    • Buy cheap BK7 CaF2 Znse Optical Window Lens for UV and IR Optical Systems from wholesalers

    BK7 CaF2 Znse Optical Window Lens for UV and IR Optical Systems

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    Brand Name : LONGWAY
    Model Number : LW0193262
    Certification : ISO9001
    Price : NEGOTIATION
    Payment Terms : D/P,T/T,Western Union
    Supply Ability : 10000 Pieces per Month
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    BK7 CaF2 Znse Optical Window Lens for UV and IR Optical Systems



    BK7 CaF2 Znse Optical Window Lens for UV and IR Optical Systems


    1. Material Composition & Core Function:

    • Hybrid Material Solution: Combines three distinct optical materials (BK7 glass, Calcium Fluoride crystal, Zinc Selenide) into a single protective window/lens element.

    • Primary Function: Acts as a robust environmental barrier and broadband transmitter for optical systems operating across ultraviolet (UV), visible (VIS), and infrared (IR) spectra.


    2. Key Material Properties & Spectral Strengths:

    • BK7 Glass (Borosilicate):

      • Transmission: Excellent in Visible (VIS) spectrum.

      • Properties: High mechanical durability, good chemical resistance, cost-effective. Provides structural integrity.

    • CaF2 (Calcium Fluoride):

      • Transmission: Exceptional deep UV transmission (down to ~190nm), good in VIS and Near-IR (NIR). Resists radiation darkening.

      • Properties: Low refractive index dispersion, low thermal expansion, high laser damage threshold. Relatively soft.

    • ZnSe (Zinc Selenide):

      • Transmission: Outstanding broadband transmission from NIR through Far-IR/LWIR (up to ~20µm).

      • Properties: Essential for thermal IR & CO₂ lasers (10.6µm), good thermal shock resistance. Moderately soft, sensitive to moisture/abrasion (often requires coatings).


    3. Combined Critical Properties:

    • Ultra-Broadband Transmission: Seamlessly covers UV (via CaF2), VIS (via BK7/CaF2), and IR (via ZnSe/CaF2) wavelengths in one component.

    • Robust Environmental Barrier: Protects sensitive internal optics (sensors, lasers, detectors) from dust, moisture, contaminants, and physical damage.

    • Optical Integrity: Maintains low wavefront distortion for accurate light transmission.

    • Durability: Leverages BK7's hardness while benefiting from CaF2/ZnSe's thermal and laser handling capabilities.


    4. Primary Function:

    • To transmit light efficiently across the UV-VIS-IR spectrum while hermetically sealing and safeguarding the internal components of sophisticated optical instruments operating in these demanding wavelength ranges.


    5. Key Applications (UV & IR Systems):

    • Multispectral & Hyperspectral Imaging Systems: Covering UV-VIS-NIR-SWIR-MWIR-LWIR ranges.

    • High-Power Laser Systems: Protective windows for UV excimer lasers, frequency-multiplied Nd:YAG lasers, and especially CO₂ lasers (10.6µm) where ZnSe excels.

    • Thermal Imaging (IR Cameras): Windows for SWIR, MWIR, and LWIR cameras (e.g., FLIR systems).

    • Broadband Spectroscopy: FTIR, UV-VIS-NIR spectrometers requiring wide spectral access.

    • Defense & Aerospace: Domes and windows for missile seekers, surveillance systems, targeting pods.

    • Scientific & Research Instruments: Equipment requiring performance across extreme UV and IR wavelengths.


    ItemOptical Window, Glass disc, Sight glass
    MaterialOptical glass, Qurartz glass, Pyrex, borosilicate glass, Float glass, borofloat
    Diameter Tolerance+0/-0.2 mm
    Thickness Tolerance+/-0.2 mm
    ProcessedBy Cutting,Grinding,Tempering, Polishing
    Working temperatureResisting high temperature shock
    Surface Quality80/50,60/40,40/20
    Material QualityNo scratches and air bubble
    Transmission>92% for visible light
    Chamfer0.1-0.3 mm x 45 degree
    Surface CoatingAvailable
    UsageLaser System, Lighting system, industrial area.









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