1-Pack Round Fresnel Lens Diameter 500MM Focal Length 500mm Acrylic Large Fresnel Lenses for solar collecting,magnifying,cooking outside,solar heating,solar projector fire starter

Amazon.com Price: £198.00 (as of 19/08/2019 22:26 PST- Details)

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1pcs large fresnel lens
Size:Φ500mm, Focal length:500mm, Thickness:3mm, Material:PMMA(acrylic)
Visual Aid for education – Great for Solar Concentrator, DIY Solar Heater, Solar Project, For Scientific Research

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Description

Size: Φ500mm Focal length: 500mm Thickness: 3mm Material: PMMA Groove pitch: 0.5mm Material : acrylic (pmma) Transmission (%): 92 (from 400-1100nm) Index of Refraction nd : 1.491 Operating Temperature (°C): 80 (Maximum)
1pcs large fresnel lens
Size:Φ500mm, Focal length:500mm, Thickness:3mm, Material:PMMA(acrylic)
Visual Aid for education – Great for Solar Concentrator, DIY Solar Heater, Solar Project, For Scientific Research
High light transmittance, High efficiency in focusing
Lightweight, Durable

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