Sign In | Join Free | My burrillandco.com
Home > Firefighting Supplies >

Low Thermal Expansion BK-7 Glass Optical Dome for Precision Instruments

    Buy cheap Low Thermal Expansion BK-7 Glass Optical Dome for Precision Instruments from wholesalers
     
    Buy cheap Low Thermal Expansion BK-7 Glass Optical Dome for Precision Instruments from wholesalers
    • Buy cheap Low Thermal Expansion BK-7 Glass Optical Dome for Precision Instruments from wholesalers
    • Buy cheap Low Thermal Expansion BK-7 Glass Optical Dome for Precision Instruments from wholesalers
    • Buy cheap Low Thermal Expansion BK-7 Glass Optical Dome for Precision Instruments from wholesalers
    • Buy cheap Low Thermal Expansion BK-7 Glass Optical Dome for Precision Instruments from wholesalers

    Low Thermal Expansion BK-7 Glass Optical Dome for Precision Instruments

    Ask Lasest Price
    Brand Name : LONGWAY
    Model Number : LW160920158
    Certification : ISO9001
    Price : NEGOTIATION
    Payment Terms : D/P,T/T,Western Union
    Supply Ability : 1000 Pieces per Month
    • Product Details
    • Company Profile

    Low Thermal Expansion BK-7 Glass Optical Dome for Precision Instruments



    Low Thermal Expansion BK-7 Glass Optical Dome for Precision Instruments

    1. Material:

      • BK-7 Optical Glass: A borosilicate crown glass composed of silica (69–72%), boron oxide (10–13%), and potassium oxide (8–10%). Renowned for high optical homogeneity and low impurity content.

      • Low Thermal Expansion Design: Engineered to minimize dimensional changes under temperature fluctuations.

    2. Key Properties:

      • Thermal Stability: Extremely low coefficient of thermal expansion (CTE: ~7.1 × 10⁻⁶/K), ensuring minimal shape distortion in varying temperatures (-50°C to 150°C).

      • Optical Clarity: High transmission (>90%) across visible to near-infrared (350–2000 nm) wavelengths.

      • Mechanical Durability: Resistant to scratches, abrasion, and moderate chemical exposure (e.g., mild acids, humidity).

      • Homogeneity: Exceptional material uniformity, reducing light scattering and wavefront distortion.

    3. Function:

      • Thermal Deformation Resistance: Maintains precise optical alignment in temperature-sensitive environments.

      • Environmental Protection: Seals precision instruments from dust, moisture, and mechanical stress.

      • Optical Performance: Preserves image/resource integrity by minimizing thermal-induced focal shifts or aberrations.

      • Wide Field of View: Hemispherical shape enables unobstructed 180° imaging or sensing.

    4. Applications:

      • Space & Satellite Systems: Protects sensors in satellites/telescopes exposed to extreme thermal cycling.

      • Laser & Metrology Equipment: Ensures stability in laser cavities, interferometers, or coordinate-measuring machines (CMMs).

      • Aerospace Sensors: Shields navigation/guidance systems in aircraft/drones operating at high altitudes.

      • High-Precision Manufacturing: Used in semiconductor lithography or industrial inspection tools requiring micron-level accuracy.

    5. Technical Advantages:

      • Dimensional Stability: Retains shape and optical alignment despite rapid temperature changes.

      • Broad Wavelength Compatibility: Suitable for multispectral applications (visible, NIR).

      • Custom Geometry: Available in diameters from 20mm to 500mm, with tailored thickness for load-bearing needs.

    6. Target Industries:

      • Aerospace, defense, photonics, semiconductor manufacturing, metrology, and scientific research.

    NameOptical dome
    MaterialOptical glass, Qurartz glass, borosilicate glass
    Diameter Tolerance+0/-0.15 mm
    Thickness Tolerance+/-0.15mm
    Processedby grinding, polishing
    Surface Quality80/50,60/40,40/20
    Material Qualityno scratches and air bubble
    Transmissionabove 90%
    Chamfer0.1-0.5 mm x 45°
    Surface CoatingAvailable
    UsagePhotography, Lighting system, Optics









    Quality Low Thermal Expansion BK-7 Glass Optical Dome for Precision Instruments for sale
    • Haven't found right suppliers
    • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
    • And this service is free of charge.
    • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
    Submit Buying Request
    Send your message to this supplier
    *From:
    Your email address is incorrect!
    *Subject:
    Your subject must be between 10-255 characters!
    *Message:
    For the best results, we recommend including the following details:
    • --Self introduction
    • --Required specifications
    • --Inquire about price/MOQ
    Your message must be between 20-3,000
    Yes! I would like your verified suppliers matching service!
    Send your message to this supplier
     
    *From:
    *To: Shanghai Longway Special Glass Co., Ltd.
    *Subject:
    *Message:
    Characters Remaining: (0/3000)
     
    Explore more Optical Dome products from this supplier
    Find Similar Products By Category:
    Inquiry Cart 0