Fresnel Lens Magnifier, Diameter 100mm (4''), Focal Length 100mm, Acrylic Lens (not Glass), for Physics Classroom,Solar Heating,Magnifiying. (Focal

1-Pack Round Fresnel Lens Magnifier Size:Φ100mm, Thickness:2mm, Material: PMMA (Acrylic) High Light Transmittance, High Efficiency in Focusing, High

2PCS/Pack square acrylic fresnel lenses Size:200*200mm, Focal length:100mm, Thickness:2mm, Material:PMMA(acrylic) Visual Aid for education - Great for

2-Pack Fresnel Lens 200 * 200MM Focal Length 100MM Acrylic Solar Magnifying Lenses, Solar Concentrator for Fire Starter/Solar Project/Scientific

Linear Fresnel Lens 250x150mm, Focal Length 120mm, Acrylic Lens (not Glass), Linear Focusing for Physics Classroom, Optical Education, Solar Project - Yahoo Shopping

1-Pack Round Fresnel Lens Magnifier Size:Φ100mm, Thickness:2mm, Material: PMMA (Acrylic) High Light Transmittance, High Efficiency in Focusing, High

Fresnel Lens Magnifier, Diameter 100mm (4''), Focal Length 100mm, Acrylic Lens (not Glass), for Physics Classroom,Solar Heating,Magnifiying. (Focal

Fresnel lenses are most used in solar concentration, solar heating and light gathering applications. Or cooking outside as a fire starter. Fresnel lenses can also be used as projection lenses or magnifiers. They are great for magnifying print in books, magazines, maps, telephone numbers, recipes, etc. They are great as a gift or toy to childrens who need visual aid.

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

2-Pack Large Fresnel Lenses Φ300mm(11.81) Focal Length 120mm Acrylic Magnifier for Solar Heating,Solar Cooking,Visual Education. (Focal Length 120mm) : Industrial & Scientific

8.3 x 11.75 LARGE 3X Fresnel Lens FULL PAGE Magnifier - Solar Oven/DIY Projection TV PLANS (1 pack PREMIUM GRADE Large Lens) : Health & Household

2024 Free Sample/Inquiry for Drawings Fresnel Magnifier Dia 100mm (4′ ′) FL 100mm Acrylic Lens Physics Classroom Solar Heating Magnifying - China Optical Lens, Optical Components

Six Seasons 2-Pack Fresnel Lens Diameter 120mm(4.72) Focal India

2024 Free Sample/Inquiry for Drawings Fresnel Magnifier Dia 100mm (4′ ′) FL 100mm Acrylic Lens Physics Classroom Solar Heating Magnifying - China Optical Lens, Optical Components