Six Seasons 2-Pack Round Fresnel Lens Diameter 220MM Focal Length 240mm Acrylic Optical Lenses for Cooking Outside, Solar Energy Fresnel Magnifier

2PCS-PACK Fresnel Lens, Acrylic ultrathin Size: Φ220mm Focal length: 240mm Thickness: 3mm Material: PMMA(acrylic) Visual Aid for education - Great for

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: : Industrial & Scientific

American Photonics 20mm Diameter Lens Tubes with ZnSe Focus Lens. 101.6 mm (4.0) W/Nozzle : Industrial & Scientific

2-Pack Round Fresnel Lens Diameter 240MM Focal Length 250mm for Solar Concentrator and Cooking Outside, Large Fresnel Lenses Solar Magnifier fire Starter DIY Solar Projector : Arts, Crafts & Sewing

Fresnel lens - E-TAY Industrial

2-Pack Round Fresnel Lens Diameter 400MM Focal Length 240mm Acrylic Lenses for Solar Collecting,Cooking Outside,Solar Energy Fresnel Lens Magnifier Solar Projector fire Starter : Patio, Lawn & Garden

2-Pack Fresnel Lenses 280 * 280MM Focal Length 600MM Acrylic Optical fresnel lens Fire Starter/Solar Oven/Scientific Research&Education/DIY Projection TV PLANS By Six Seasons: : Industrial & Scientific

Fresnel Lens Magnifier, Diameter 200mm (7.9''), Algeria

Six Seasons 2-Pack Round Fresnel Lens Diameter 220MM Focal Length 240mm Acrylic Optical Lenses for Cooking Outside, Solar Energy Fresnel Magnifier Large Lens emegency fire Starter DIY Solar Projector : Arts

Six Seasons 2-Pack Round Fresnel Lens Diameter 220MM Focal Length 240mm Acrylic Optical Lenses for Cooking Outside, Solar Energy Fresnel Magnifier Large Lens emegency fire Starter DIY Solar Projector : Arts

2-Pack Large Fresnel Lenses Φ300mm(11.81) Focal Length 600mm Acrylic Magnifier for Solar Heating,Solar Cooking,Visual Education. (Focal Length 600mm) : Industrial & Scientific