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Biconcave Lens Suppliers in China - High-Quality Optical Factory Products for Beam Divergence and Expansion
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Biconcave Lens Suppliers in China - High-Quality Optical Factory Products for Beam Divergence and Expansion

The biconcave lens, also known as a biconcave spherical lens, is a crucial optical component typically crafted from high-quality flint glass in our factory in China. This lens is designed for beam divergence, featuring a negative focal length that causes parallel incident rays to diverge outward effectively. Whether the curvature radii of its two sides are equal or unequal, the biconcave lens is often combined with plano-convex lenses in optical applications. It plays a vital role in beam expanders, projection optical systems, and optical viewers, making it an essential product offered by leading suppliers in the industry

    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

    MaterialOptical 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
    CoatingAR OR BBAR
    Diameter Range5~260mm

    Sample Drawing

    pro

    Productive Capacity

    products

    Custom & OEM Process

    Materials capabilities

    Materials capabilities

    Coating capabilities

    Coating capabilities

    Advanced Equipment

    Advanced Equipment

    Custom Sizes and Shapes

    Custom Sizes and Shapes

    Quality Assurancetesting

    Quality Assurancetesting

    Experienced Team

    Experienced Team

    Company introduction

    Q&A

    Q1: Are you a factory?

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

    Q2: 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.

    Q3: 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.

    Q4: 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.

    Q5: How do you control the quality?

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

    Q6: What is your payment term?

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

    freight

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    payment

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