Fresnel lens element SC series

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The best known microstructured optic is the Fresnel Lens. This is a special optical lens. Compared to a standard lens, the surface of the fresnel lens is divided into a number of concentric grooves. Fresnel Lenses can be designed as a collimator, collector or with finite conjugates. They are usually corrected for spherical aberration. We offer a variety of standard designs as well as custom designs for our customers. Using plastic microstructured optical components offers many advantages over conventional optical products: -significant reduction in weight, thickness and volume; -ease in manufacturing of extremely high-aperture (fast) elements and large-area optical components; -almost unlimited flexibility in optical design; -cost-effective custom finishing of parts to virtually any shape and dimension. ___________________________________________________________________________ All dimensions in mm. Focal lengths listed apply to 546nm in PMMA (max. tolerance ± 5%). The standard material used is PMMA (refractive index = 1.49; relative dispersion = 58). Other materials are available. The outside size may be up to 5 - 20mm beyond the clear aperture. Other dimensions or special trimmings can be realized uponrequest. The standard thickness is 1.8mm ± 0.3. Other thicknesses (≥0.8mm are possible) Other dimensions or special trimmings can be realised upon request. Special designs possible on request.