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  3. POSITIVE FRESNEL LENSES

POSITIVE FRESNEL LENSES

POSITIVE FRESNEL LENSES
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POSITIVE FRESNEL LENSES

Product catalog summary
Overview: This document provides technical specifications for a range of positive Fresnel lenses manufactured by ORAFOL Fresnel Optics GmbH. These lenses are engineered to manage light effectively and are primarily made from PMMA material.
Specifications:
  • Focal Length: Ranges from 6.3 mm to 763.4 mm, with specific focal lengths applicable to 546 nm for PMMA.
  • Facet Spacing: Varies from 0.076 mm to 0.762 mm, determining the number of lines per mm.
  • Fresnel and Plano Conjugate: Most lenses have an infinite Fresnel conjugate, with specific plano conjugate values provided.
  • Clear Aperture: Dimensions range significantly, with some lenses having rectangular apertures.
  • Thickness: Generally consistent at 1.8 mm, with some thicker lenses at 2.5 mm.
Materials and Tolerances:
  • The standard material is PMMA with a refractive index of 1.49 and relative dispersion of 58.
  • Focal length tolerance is ±5%.
Additional Notes:
  • Outside diameter or size may extend 5-20 mm beyond the clear aperture.
  • Special designs and dimensions are available upon request.
  • Specifications are subject to change without prior notice.
Contact Information: ORAFOL Fresnel Optics GmbH, Flurstedter Marktweg 13, 99510 Apolda, Germany. Tel: +49 3644 5011 0, Email: [email protected]
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Catalog excerpts

POSITIVE FRESNEL LENSES-1

Engineered to Manage Light ™

 Open the catalog to page 1
POSITIVE FRESNEL LENSES-2

FOG_7 Rev. 7 ; ©2013 ORAFOL Fresnel Optics GmbH Part Number Notes: • Focal lengths listed apply to 546 nm for PMMA (tolerance ± 5%). • The standard material used is PMMA (refractive index = 1.49; relative dispersion = 58). Other materials are available. • The mentioned thickness value is our standard thickness. Other thicknesses (> 0.8 mm) are possible. • Outside diameter / size may be up to 5 - 20 mm beyond clear aperture. Other dimensions or special trimmings can be realized upon request. • To determine the number of lines per mm, use 1/facet spacing. • Special designs possible on request....

 Open the catalog to page 2

All ORAFOL Fresnel Optics Gmbh catalogs and technical brochures

  1. NEGATIVE FRESNEL LENSES
    NEGATIVE FRESNEL LENSES

    1  Page

  2. SURFACE RELIEF DIFFUSIVE MICROSTRUCTURES
    SURFACE RELIEF DIFFUSIVE MICROSTRUCTURES

    1  Page

  3. FRESNEL BEAMSPLITTER
    FRESNEL BEAMSPLITTER

    1  Page

  4. FRESNEL PRISMS
    FRESNEL PRISMS

    1  Page

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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