Credit Card Fresnel Lens

Credit Card Fresnel Lens
The wave theory of light gave Fresnel rein to a number of inventions in optics. These included the Fresnel mirrors (canted to produce an interference pattern), the Fresnel rhomb (produces elliptical polarization using internal reflection), and most importantly, the Fresnel lens, which uses a stepped geometry to produce focussing. The lens shown above are plastic and can be used for magnification or for solar radiation concentration. Fresnel lenses are used in automobile headlights and large glass Fresnel lenses are used in lighthouses and have been instrumental in the prevention of shipwrecks.No. Type Outer Dimensions Focal Length Facet Spacing1 Fresnel-1100330 110 x 58 330 0.52 Fresnel-1350330 135 x 94 330 0.53 Fresnel-1950330 195 x 65 330 0.5
Credit Card Fresnel Lens product offered by Hengwen Optics Components Co., Ltd.