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Biconcave Lens Suppliers in China - High-Quality Factory-Made Spherical Lenses for Optical Systems
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Biconcave Lens Suppliers in China - High-Quality Factory-Made Spherical Lenses for Optical Systems

The biconcave lens, also known as a biconcave spherical lens, is a key optical component crafted primarily from flint glass. Renowned for its ability to cause beam divergence, this lens features a negative focal length, allowing parallel incident rays to diverge outward. Its curvature radius can either be equal or varied on both sides, making it versatile for different applications. Often combined with plano-convex lenses, biconcave lenses are extensively utilized in beam expanders, projection optical systems, and optical viewers. As a leading supplier of optical products in China, our factory ensures high-quality manufacturing processes to provide exceptional biconcave lenses to meet your needs. Whether you're in need of optical solutions for industrial applications or consumer products, our biconcave lenses deliver reliable performance and precision

    Biconcave Lens

    ALHAZEN can not only customize the common biconcave spherical lens of N-BK7 or fused quartz, but also customize biconcave spherical lens of any glass material.

    Product Parameter

    Material Optical Glass
    Surface Flatness < λ/5 @ 633nm
    Scratch/Dig < 40/20 (both sides)
    Eccentricity ≤ 1arcmin
    Focal Length Tolerance < ± 1%
    Diameter Tolerance < + 0.00/ - 0.02mm
    Thickness Tolerance < ± 0.05
    Clear Aperture ≥ 95% of diameter
    Coating AR OR BBAR
    Diameter Range 5~260mm

    Sample Drawing

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    Productive Capacity

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    Company introduction

    Freight

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    Payment

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    Q&A

    Q:Are you a factory?

    Yes, we are a professional manufacturer of optical components, we have more than 20 years experience in optical cold working.

    Q:Can I custom the products based on my requirement?

    Yes, we can custom the material, specifications and optical coating for your optical components as your requirement.

    Q:How many days will samples be finished? How about mass products?

    Generally, we need 1-2 days to finish the sample production. As for the mass products, it depends on your order quantity.

    Q:What's the delivery time?

    (1) For inventory: the delivery time is 1-3 working days.
    (2) For customized products: the delivery time is 7 to 25 working days According to the quantity.

    Q:How do you control the quality?

    More than four times quality inspect during production process, we can provide the Quality test report.

    Q:What is your payment term?

    T/T or L/C, if you want any other way, please contact us.