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square fresnel lens 500*500mm 500x500mm and focal length 600mm for sale

500mm Fresnel Lens With Advance Clarity

Vy Optics Wholesale High Quality 500mm PMMA Linear Fresnel Lens - China Fresnel Lens, Linear Fresnel Lens

Size: Φ500mm Focal length: 500mm Thickness: 3mm Material: PMMA Groove pitch: 0.5mm Material : acrylic (pmma) Transmission (%): 92 (from 400-1100nm)

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500mm Fresnel Lens With Advance Clarity

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