Linear Fresnel Lens 300 * 300mm Focal Length 300mm Optical Linear Lens, Focal is a line, Acrylic lenses, small focus high light transmittance By SIX SEASONS TECH: Amazon.com: Industrial & Scientific
Advantages of Fresnel Lenses | Edmund Optics
300mm Large Optical PMMA Plastic Big Solar Fresnel Lens Focal Length 120 220 400 360mm Solar Concentrator Magnifying Glass 1PC
AWI Industries
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