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Double concave cylindrical lens
Biconcave cylindrical lenses feature concave cylindrical surfaces on both sides, providing stronger divergence than plano-concave versions, suited for applications requiring large-angle uniaxial beam expansion. They are commonly combined with other lenses to build complex optical systems for laser beam expansion, collimation and astigmatism compensation.
Double concave cylindrical lens
Biconcave cylindrical lenses feature concave cylindrical surfaces on both sides, providing stronger divergence than plano-concave versions, suited for applications requiring large-angle uniaxial beam expansion. They are commonly combined with other lenses to build complex optical systems for laser beam expansion, collimation and astigmatism compensation.
Product Features
- Biconcave structure with stronger divergence than plano-concave lenses
- Designed for large-angle uniaxial beam expansion
- Can be combined with other cylindrical lenses for flexible optical system configuration
- Available materials: K9, BK7, JGS1, etc.
Technical Specifications
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Parameters
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Specifications
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Material
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K9 / BK7 / JGS1 / Customer-specified
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Standard Surface Figure Accuracy
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N < 2, ΔN < 0.5
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Special Surface Figure Accuracy
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N < 0.5, ΔN < 0.5
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Surface Quality
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40/20 (standard) / 10/5 (special)
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Aperture Range
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3 mm - 500 mm
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Typical Applications
- Wide-angle laser beam expansion systems
- Laser illumination homogenizing modules
- Freeform surface compensation optical paths
- Laboratory optical alignment systems