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Knight Optical Fresnel Lens - LFQ25125
NANLUX FL-28 Announced - Lightweight Fresnel Lens for Evoke LED Fixtures
0.2X, 1/2.5 C-Mount Bi-Telecentric Lenses
Can a Fresnel lens be used backwards to gather light similar to how a convex lens does? - Quora
Cylindrical/Linear Fresnel Lens PMMA 7mm F.L. 140x70mm
Precision Lenses, Precision optical components
150mm Diameter 120mm Focal Length Microlens Array Compound Eye Honey Comb Fresnel Lens Fly Eye Lens - Lenses - AliExpress
Knight Optical Fresnel Lens - LFQ25125
Fresnel Prisms, Medical Prisms
Reverse Configuration Fresnel Lens Non-Solar (Circular) 50mm F.L. 100mmdia aperture 2mmthk