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FRESNEL LENS 318MM X 250MM X 330MM FL
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Item No: L3606
Price: $9.95
or 10 for $80.00
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| You have been asking for these for quite some time and our last batch sold out rapidly. Quality optical acrylic fresnel lens 1/16" thick, 318mm x 250mm with a 330mm focal length constructed of thousands of tiny spiral microgrooves. These are commonly used in DIY projectors in conjunction with an achromatic lens. Fresnels were originally designed to be used in lighthouse because of their light weight. Also could be used to build a solar furnace. And makes a great magnifier for TV, computer screen, reading, etc. 50 grooves per inch. Unused in mint condition! While supplies last! |
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