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Fresnel Lenses - Precision range
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| Fresnel lenses replace the curved surface of a conventional lens with a series of concentric grooves, moulded into the surface of lightweight plastic sheets. These grooves act as individual refracting surfaces when viewed in cross section. Our large-aperture, lightweight plastic lenses are often used as collimators and collectors in sensor or communication systems. The below precision range Fresnel lenses offer very close tolerances and a better surface finish. These properties make the precision range well suited for more demanding applications such as projection systems and simulators. All below stock are uncoated. Specifications: | Material: | PMMA Acrylic | | Focal Length: | Standard Range: ± 5% Precision Range: ± 1% | | Design condition: | Parrallel light on grooved side | | | | | | | | See Also: Beam Dividers and Fresnel Prisms |
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