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SC 249

Optical Lens by ORAFOL Fresnel Optics GmbH
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Positive Fresnel Lenses can be designed as a collimator, collector or with finite conjugates. They are usually corrected for spherical aberration.Focal Length: 152.0,Facet Spacing: 0.381,Fresnel Conjugate: 152.0, Plano Conjugate infinity Clear Aperture: 205.4, Thickness: 1.8, All dimensions in mm. Focal lengths listed apply to 546nm in PMMA (max. tolerance ± 5%). The outside size may be up to 5 - 20mm beyond the clear aperture.The standard thickness is 1.8mm ± 0.3. Other dimensions or special trimmings can be realised upon request. Special designs possible on request.

Product Specifications

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Product Details

  • Part Number
    SC 249
  • Manufacturer
    ORAFOL Fresnel Optics GmbH
  • Description
    152.0 mm Spherical Positive fresnel lenses

General Parameters

  • Lens Type
    Fresnel Lens
  • Sub Type
    Positive fresnel lens
  • Focal Length
    152.0 mm
  • Back Focal Length(BFL)
    infinity(Plano Conjugate)
  • Effective Focal Length(EFL)
    152.0 mm(Fresnel Conjugate)
  • Thickness Tolerance
    ± 0.3 nm
  • Center Thickness
    1.8 mm
  • Clear Aperture
    205.4 mm
  • Note
    Facet Spacing: 0.381 mm

Technical Documents
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