10 Fresnel Lens -- Solar Oven + DIY Projection TV

Product Description

Fresnel lenses can be used as magnifiers or projection lenses. They are great for reading fine print in books, magazines, maps, telephone directories, recipes, etc. Makes a great gift for those who need a visual aid. They need to be elevated 4 to 6 inches from the page in order to magnify. These can also be used for light duty solar projects. Lens details: 7.00" x 10.25" Inches, Thickness: 0.4mm, Weight: 26 grams, Groove pitch: 0.3mm, Focal length: 300mm, Magnification: 3x, Material: optical PVC

Features

• Lot of 10 Fresnel Lenses
• Lightweight, flexible, durable PVC
• Visual Aid -- Great for reading small text
• Great for Light Duty Solar Projects such as DIY Solar Cooking and Heating
• Aids Presbyopia (diminished close vision that eventually effects EVERYONE)

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