Hemisphere Sapphire Dome
  • Extremely hard, strong and wear resistant
  • Excellent thermal conductivity/heat resistance
  • Exceptionalchemical stability
  • Excellent transmission bandwidths (UV to IR)
  • Blank substrates, AR-coated pieces, and precision windows are available
  • Featuring exceptional physical strength, excellent optical transmission band from UV to IR, durability under extreme pressure and temperature, sapphire hemisphere dome is ideal for the application of aerospace and defense that involve exposure to environmental conditions, such as wind and rain, at very high speeds.

    HYT Sapphire Optics offers a wide of high quality customized sapphire shape dome, such as Hemisphere Sapphire Dome , Hyper hemisphere sapphire dome, Aspheric sapphire dome and Kerf sapphire dome.

    The Unmatched Excellence of IR Sapphire Domes: Applications and Advantages

    In the realm of high-performance optical components, IR Sapphire Domes stand out as a quintessential choice. These domes, crafted from synthetic sapphire, offer unparalleled mechanical and optical properties, making them indispensable in various advanced technological applications. This article delves into the unique attributes and diverse uses of IR Sapphire Domes, showcasing why they are the preferred material in demanding environments.

    What are IR Sapphire Domes?

    IR Sapphire Domes are optical components made from synthetic sapphire, a form of crystalline aluminum oxide (Al2O3). Known for its exceptional hardness, thermal stability, and broad transmission range, sapphire is an ideal material for applications requiring durability and high optical clarity.

    Key Characteristics of IR Sapphire Domes

    High Transmission Range: Sapphire exhibits excellent transmission properties across a wide spectral range, from ultraviolet (UV) to mid-infrared (IR) wavelengths (0.15 μm to 5 μm). This broad transmission capability makes it suitable for various optical systems.
    Exceptional Hardness: With a Mohs hardness of 9, sapphire is second only to diamond. This remarkable hardness ensures resistance to scratches and mechanical wear.
    Thermal Stability: Sapphire can withstand extreme temperatures, up to 2000°C, without degrading. This makes it suitable for high-temperature environments.
    Chemical Resistance: Sapphire is highly resistant to chemical corrosion, maintaining its integrity in the presence of acids, alkalis, and other corrosive substances.
    High Mechanical Strength: The robust mechanical properties of sapphire enable it to endure high-pressure conditions, making it ideal for use in harsh environments.

    Applications of IR Sapphire Domes

    1. Military and Aerospace

    In military and aerospace applications, IR Sapphire Domes are extensively used in missile guidance systems, aircraft, and unmanned aerial vehicles (UAVs). These systems operate in challenging conditions where durability and optical performance are critical. The domes protect sensitive sensors and optics from environmental hazards while ensuring clear and accurate signal transmission.

    2. Optical Instruments

    High-precision optical instruments, such as infrared cameras, telescopes, and spectrometers, benefit from the superior optical clarity and durability of IR Sapphire Domes. These instruments require high-quality optical components to deliver precise imaging and data accuracy, and sapphire's properties make it an ideal choice.

    3. Medical Devices

    In the medical field, advanced imaging equipment often incorporates IR Sapphire Domes to enhance image clarity and accuracy. These domes provide a durable, transparent protective layer that ensures optimal performance of imaging systems used in diagnostics and surgical procedures.

    4. Industrial Applications

    Industries that rely on high-precision laser processing, materials testing, and quality control utilize IR Sapphire Domes for their robustness and optical performance. The domes can withstand the harsh conditions of industrial environments while maintaining their optical integrity, ensuring reliable operation and accurate results.

    Why Choose IR Sapphire Domes?

    Choosing IR Sapphire Domes offers numerous advantages, including:

    Enhanced Durability: Their unmatched hardness and chemical resistance ensure longevity and reduced maintenance costs.
    Superior Optical Performance: High transmission across a broad spectral range ensures excellent image clarity and sensor performance.

    Environmental Resistance: Ability to withstand extreme temperatures and pressures makes them suitable for a wide range of applications.

    In conclusion, IR Sapphire Domes are a superior choice for any application requiring robust, high-performance optical components. Their exceptional properties make them indispensable in military, aerospace, medical, and industrial fields. As technology advances, the demand for reliable and durable optical materials like IR Sapphire Domes will continue to grow, solidifying their place as a cornerstone in the world of advanced optics.


    Sapphire Hemisphere Dome

    Specifications of Hemisphere Sapphire Dome

    Material Sapphire (Al2O3)
    Caliber φ50 ~φ400mm
    Wall thickness ≥ 1mm
    Surface Quality 60/40, 40/20 or 20/10 S/D
    Surface figure 1.0 fringe
    Surface roughness 10 Å
    Center deviation ≤1'
    Coating No coating or custom coating request

    Price list and specification index

    If need other specifications and quantities products, please contact us(sales@sapphire-windows-hyt.com).
    Part Number Caliber Wall Thickness Coating Price
    Hem-Dome-Sapphire-001 Φ30.00 mm 5.00 mm AR coating contact us


  • Anti-reflection coatings are also available at your specified wavelength.
  • Sapphire transmits ultraviolet light, but sometimes exhibit fluorescence when subjected to powerful ultraviolet sources. For this reason, they are best suited for use with visible to infrared wavelengths.
  • Be sure to wear laser safety goggles when checking optical path and adjusting optical axis.
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    HYT Sapphire Optics focused on the precision manufacturing of high-quality sapphire components, and strived to create sapphire optical windows, fine holes, rods, balls, tubes and other automated, intelligent products and chemical production line.